{"id":537,"date":"2011-11-20T23:28:51","date_gmt":"2011-11-20T21:28:51","guid":{"rendered":"http:\/\/www.luke3d.org\/luke3d_blog\/?p=537"},"modified":"2018-03-08T23:36:21","modified_gmt":"2018-03-08T21:36:21","slug":"smontaggio-e-revisione-testa-cilindro-pistone","status":"publish","type":"post","link":"https:\/\/www.luke3d.org\/luke3d_blog\/smontaggio-e-revisione-testa-cilindro-pistone\/","title":{"rendered":"Smontaggio e revisione testa-cilindro-pistone"},"content":{"rendered":"<p style=\"text-align: left;\"><strong>AGGIORNAMENTO: 13 Dicembre 2011.<\/strong><\/p>\n<p style=\"text-align: left;\">Ok, parliamo &#8220;brevemente&#8221; dei passi per revisionare il gruppo termico dello Scrambler. Prima di tutto togliete il carburatore e la marmitta; per quest&#8217;ultima \u00e8 vivamente consigliato l&#8217;utilizzo dell&#8217;apposita chiave per evitare di rompere tutte le alette della ghiera. Poi togliete il coperchio del rinvio del contagiri ed allineate i due riferimenti sugli ingranaggi della coppia conica, cos\u00ec facendo siete sicuri che il pistone \u00e8 al punto morto superiore in fase di compressione (entrambe le valvole chiuse ed i bilanceri liberi). Fatto questo &#8220;mollate&#8221; i 4 prigionieri, prendete la testa e date un bel tirotto secco verso l&#8217;alto; la testa vi dovrebbe rimanere in mano.<\/p>\n<p style=\"text-align: left;\"><a href=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/3.jpg\"><img decoding=\"async\" class=\"alignnone wp-image-540 size-medium\" title=\"3\" src=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/3-225x300.jpg\" alt=\"\" width=\"225\" height=\"300\" srcset=\"https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/3-225x300.jpg 225w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/3.jpg 480w\" sizes=\"(max-width: 225px) 100vw, 225px\" \/><\/a><a href=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/1.jpg\">\u00a0 \u00a0<img decoding=\"async\" class=\"alignnone wp-image-538 size-medium\" title=\"1\" src=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/1-300x225.jpg\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/1-300x225.jpg 300w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/1-400x300.jpg 400w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/1.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a>\u00a0\u00a0\u00a0<a href=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/2.jpg\"><img decoding=\"async\" class=\"alignnone wp-image-539 size-medium\" title=\"2\" src=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/2-300x225.jpg\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/2-300x225.jpg 300w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/2-400x300.jpg 400w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/2.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p style=\"text-align: left;\">Di seguito qualche foto del cilindo\/pistone del mio Scrambler. Fate caso al piccolo OR\u00a0 (o meglio quello che ne rimane) nella seconda foto. Al rimontaggio dovr\u00e0 essere sostituito con uno nuovo.<\/p>\n<p style=\"text-align: left;\">\u00a0<a href=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/4.jpg\"><img decoding=\"async\" class=\"alignnone wp-image-541 size-medium\" title=\"4\" src=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/4-300x225.jpg\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/4-300x225.jpg 300w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/4-400x300.jpg 400w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/4.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a>\u00a0 \u00a0<a href=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/5.jpg\"><img decoding=\"async\" class=\"alignnone wp-image-542 size-medium\" title=\"5\" src=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/5-300x225.jpg\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/5-300x225.jpg 300w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/5-400x300.jpg 400w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/5.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a>\u00a0 \u00a0<a href=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/6.jpg\"><img decoding=\"async\" class=\"alignnone wp-image-543 size-medium\" title=\"6\" src=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/6-300x225.jpg\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/6-300x225.jpg 300w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/6-400x300.jpg 400w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/6.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p style=\"text-align: left;\"><a href=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/7.jpg\"><img decoding=\"async\" class=\"alignnone wp-image-544 size-medium\" title=\"7\" src=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/7-300x225.jpg\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/7-300x225.jpg 300w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/7-400x300.jpg 400w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/7.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a>\u00a0 \u00a0<a href=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/8.jpg\"><img decoding=\"async\" class=\"alignnone wp-image-545 size-medium\" title=\"8\" src=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/8-300x225.jpg\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/8-300x225.jpg 300w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/8-400x300.jpg 400w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/8.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a>\u00a0 \u00a0<a href=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/9.jpg\"><img decoding=\"async\" class=\"alignnone wp-image-546 size-medium\" title=\"9\" src=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/9-300x225.jpg\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/9-300x225.jpg 300w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/9-400x300.jpg 400w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/9.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p style=\"text-align: left;\"><a href=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/10.jpg\"><img decoding=\"async\" class=\"alignnone wp-image-547 size-medium\" title=\"10\" src=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/10-300x225.jpg\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/10-300x225.jpg 300w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/10-400x300.jpg 400w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/10.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a>\u00a0 \u00a0<a href=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/11.jpg\"><img decoding=\"async\" class=\"alignnone wp-image-548 size-medium\" title=\"11\" src=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/11-300x225.jpg\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/11-300x225.jpg 300w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/11-400x300.jpg 400w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/11.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a>\u00a0 \u00a0<a href=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/12.jpg\"><img decoding=\"async\" class=\"alignnone wp-image-549 size-medium\" title=\"12\" src=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/12-300x225.jpg\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/12-300x225.jpg 300w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/12-400x300.jpg 400w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/12.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p style=\"text-align: left;\">Per evitare di diventare matti al rimontaggio, ricordate di non muovere assolutamente l&#8217;albero motore, in questo modo il riferimento (si veda la prima foto sotto) non si muove e quando rimonterete di nuovo le fasi saranno corrette (se non ruotate l&#8217;albero motore non ruota la coppia conica inferiore). Ovviamente potete liberamente girare l&#8217;albero a camme sulla testata in quanto la fasatura si fa facilmente facendo coincidere i due riferimenti sulla coppia conica.<\/p>\n<p style=\"text-align: left;\"><a href=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/13.jpg\"><img decoding=\"async\" class=\"alignnone wp-image-550 size-medium\" title=\"13\" src=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/13-300x225.jpg\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/13-300x225.jpg 300w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/13-400x300.jpg 400w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/13.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a>\u00a0 \u00a0<a href=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/14.jpg\"><img decoding=\"async\" class=\"alignnone wp-image-551 size-medium\" title=\"14\" src=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/14-225x300.jpg\" alt=\"\" width=\"225\" height=\"300\" srcset=\"https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/14-225x300.jpg 225w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/14.jpg 480w\" sizes=\"(max-width: 225px) 100vw, 225px\" \/><\/a><a href=\"..\/wp-content\/uploads\/2011\/10\/8.jpg\">\u00a0 \u00a0\u00a0<\/a><\/p>\n<p style=\"text-align: left;\">Qua sotto alcune foto del cilindro, che \u00e8 stato trovato in decorose condizioni. Portato in un&#8217;officina di rettifica mi hanno detto che lo scalino \u00e8 meno di un decimo e sia il cilindro che il pistone non sono ovalizzati. Non presenta grossi segni di grippaggio e si vede bene che \u00e8 rimasto fermo per parecchio tempo in quanto la ruggine l&#8217;ha macchiato in alcuni punti.<\/p>\n<p style=\"text-align: left;\"><a href=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/15.jpg\"><img decoding=\"async\" class=\"alignnone wp-image-552 size-medium\" title=\"15\" src=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/15-300x225.jpg\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/15-300x225.jpg 300w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/15-400x300.jpg 400w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/15.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a>\u00a0 \u00a0<a href=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/16.jpg\"><img decoding=\"async\" class=\"alignnone wp-image-553 size-medium\" title=\"16\" src=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/16-300x225.jpg\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/16-300x225.jpg 300w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/16-400x300.jpg 400w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/16.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p style=\"text-align: left;\"><a href=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/18.jpg\"><img decoding=\"async\" class=\"alignnone wp-image-555 size-medium\" title=\"18\" src=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/18-300x225.jpg\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/18-300x225.jpg 300w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/18-400x300.jpg 400w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/18.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a>\u00a0 \u00a0<a href=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/18.jpg\"><img decoding=\"async\" class=\"alignnone wp-image-554 size-medium\" title=\"17\" src=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/17-300x225.jpg\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/17-300x225.jpg 300w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/17-400x300.jpg 400w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/17.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p style=\"text-align: left;\"><a href=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/spazzolatura.jpg\"><img decoding=\"async\" class=\"alignnone wp-image-593 size-medium\" title=\"spazzolatura\" src=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/spazzolatura-300x227.jpg\" alt=\"\" width=\"300\" height=\"227\" srcset=\"https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/spazzolatura-300x227.jpg 300w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/spazzolatura-395x300.jpg 395w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/spazzolatura.jpg 631w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p style=\"text-align: left;\">Il cilindro \u00e8 stato solo spazzolato con questa spazzola montata su un trapano a colonna.<\/p>\n<p style=\"text-align: left;\">Se avete la possibilit\u00e0 fate misurare il gap tra il pistone ed il cilindro: il limite massimo di usura \u00e8 0,160 mm, il minimo \u00e8 0.095 mm, il massimo 0.115 mm (fonte <a href=\"http:\/\/www.luke3d.org\/bmw\/ducatimanual\/Ducati_over_head_camshaft_motorcycles_workshop_manual.pdf\">qua <\/a>).<\/p>\n<p style=\"text-align: left;\"><a href=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/cilindro-pistone.jpg\"><img decoding=\"async\" class=\"alignnone wp-image-602 size-medium\" title=\"cilindro-pistone\" src=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/cilindro-pistone-300x300.jpg\" alt=\"\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/cilindro-pistone-150x150.jpg 150w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/cilindro-pistone-299x300.jpg 299w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/cilindro-pistone-300x300.jpg 300w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/cilindro-pistone.jpg 745w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p style=\"text-align: left;\">Le fasce sul pistone devono avere le seguenti tolleranze (vedere la riga MOTOCROSS)..<\/p>\n<p style=\"text-align: left;\"><a href=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/pistone.jpg\"><img decoding=\"async\" class=\"alignnone wp-image-603 size-medium\" title=\"pistone\" src=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/pistone-273x300.jpg\" alt=\"\" width=\"273\" height=\"300\" srcset=\"https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/pistone-273x300.jpg 273w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/pistone.jpg 731w\" sizes=\"(max-width: 273px) 100vw, 273px\" \/><\/a><\/p>\n<p style=\"text-align: left;\">Per misurare l&#8217;usura delle fasce, devono essere tolte dal pistone, messe dentro il cilindro (non in cima ma pi\u00f9 o meno a met\u00e0) e misurato il gap con uno spessimetro. Il limite \u00e8 1mm (fonte <a href=\"http:\/\/www.luke3d.org\/bmw\/ducatimanual\/Ducati_over_head_camshaft_motorcycles_workshop_manual.pdf\">qua <\/a>) ma teoricamente dovrebbe essere un paio di decimi (un noto meccanico bolognese sostiene che ci deve passare un foglio di giornale :)). Nel mio caso l&#8217;usura era oltre un millimetro e sono state cambiate con un set maggiorato (da 74.4) e poi riportate a &#8220;misura&#8221;. Questa operazione si fa in questo modo: prendete una piccola mola e ci montate un disco ta taglio. Montate la mola su una morsa, ben fissa, la accendete, prendete una fascia alla volta e la chiudete con delicatezza in modo da limare i due estremi\u00a0 contemporaneamente&#8230; difficile da spiegare per quanto facile da fare. Molate poco alla volta e provate il gap sul cilindro.<\/p>\n<p style=\"text-align: left;\"><a href=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/fasce.jpg\"><img decoding=\"async\" class=\"alignnone wp-image-604 size-medium\" title=\"fasce\" src=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/fasce-300x190.jpg\" alt=\"\" width=\"300\" height=\"190\" srcset=\"https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/fasce-300x190.jpg 300w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/fasce-471x300.jpg 471w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/fasce.jpg 734w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p style=\"text-align: left;\"><a href=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/20.jpg\"><img decoding=\"async\" class=\"alignnone wp-image-557 size-medium\" title=\"20\" src=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/20-300x225.jpg\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/20-300x225.jpg 300w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/20-400x300.jpg 400w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/20.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\u00a0\u00a0\u00a0<\/a><a href=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/21.jpg\"><img decoding=\"async\" class=\"alignnone wp-image-558 size-medium\" title=\"21\" src=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/21-300x225.jpg\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/21-300x225.jpg 300w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/21-400x300.jpg 400w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/10\/21.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p style=\"text-align: left;\">Questo \u00e8 il set di fasce originali Borgo da 74.4mm. L&#8217;ho preso da Serraino a Bologna per circa 45\u20ac.<\/p>\n<p style=\"text-align: left;\"><a href=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/DSC_4054.jpg\"><img decoding=\"async\" class=\"alignnone wp-image-580 size-medium\" title=\"DSC_4054\" src=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/DSC_4054-300x199.jpg\" alt=\"\" width=\"300\" height=\"199\" srcset=\"https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/DSC_4054-300x199.jpg 300w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/DSC_4054-451x300.jpg 451w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/DSC_4054.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p style=\"text-align: left;\">Passiamo alla testa. Prima di tutto si devono togliere le valvole e per farlo dovete autocostruirvi un aggeggio del genere (vedi foto a lato). Non \u00e8 altro che un ferraccio ad U opportunamente sagomato per farlo stare fermo sulle molle. Lo mettete in posizione e con un morsetto da falegname iniziate a stringere. Quando le molle sono scese di un paio di cm tirate gi\u00f9 il piattello ed aprite i due mezzi coni. Il gioco \u00e8 fatto; occhio a non prendere il ferro ad U nei denti quando mollate il morsetto :).<\/p>\n<p style=\"text-align: left;\"><a href=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/30.jpg\"><img decoding=\"async\" class=\"alignnone\" title=\"30\" src=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/30-150x150.jpg\" alt=\"\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p style=\"text-align: left;\">A questo punto si pu\u00f2 passare alla rimozione dei due perni dei bilancieri. (nella terza foto qua sotto sono gi\u00e0 stati rimossi).<\/p>\n<p style=\"text-align: left;\"><a href=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/28.jpg\"><img decoding=\"async\" class=\"alignnone wp-image-575 size-medium\" title=\"28\" src=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/28-300x225.jpg\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/28-300x225.jpg 300w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/28-400x300.jpg 400w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/28.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\u00a0\u00a0\u00a0<\/a><a href=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/27.jpg\"><img decoding=\"async\" class=\"alignnone wp-image-574 size-medium\" title=\"27\" src=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/27-300x225.jpg\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/27-300x225.jpg 300w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/27-400x300.jpg 400w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/27.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a>\u00a0 \u00a0<a href=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/29.jpg\"><img decoding=\"async\" class=\"alignnone wp-image-576 size-medium\" title=\"29\" src=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/29-300x225.jpg\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/29-300x225.jpg 300w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/29-400x300.jpg 400w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/29.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p style=\"text-align: left;\">Togliete il coperchio con la scritta 250; si vedono i due perni dei due bilanceri. Per toglierli vi dovete fare un estrattore con una barra filettata da 6mm (mi pare), un distanziale ed un dado. Avvitate la barra per qualche cm e poi stringete il dado ed il gioco \u00e8 fatto. Attenzione a due cose: la prima segnatevi attendamente quali sono i perni di aspirazione e quelli di scarico; per quanto riguarda i bilanceri se non erro non si possono confondere ma nel dubbio attaccateci un etichetta. La seconda cosa \u00e8 una precauzione in fase di rimontaggio:<strong> i perni devono essere rimontati con visibile il foro filettato dove inserite l&#8217;estrattore (la barra filettata da 6mm). Se li girate poi non vengono pi\u00f9 via!!!!!!!!!<\/strong><\/p>\n<p style=\"text-align: left;\">Se la cosa non vi \u00e8 chiara al 100% non li rimontate.<\/p>\n<p style=\"text-align: left;\"><a href=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/22.jpg\"><img decoding=\"async\" class=\"alignnone wp-image-568 size-medium\" title=\"22\" src=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/22-300x199.jpg\" alt=\"\" width=\"300\" height=\"199\" srcset=\"https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/22-300x199.jpg 300w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/22-451x300.jpg 451w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/22.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a>\u00a0 \u00a0<a href=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/23.jpg\"><img decoding=\"async\" class=\"alignnone wp-image-569 size-medium\" title=\"23\" src=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/23-300x199.jpg\" alt=\"\" width=\"300\" height=\"199\" srcset=\"https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/23-300x199.jpg 300w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/23-451x300.jpg 451w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/23.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a>\u00a0\u00a0\u00a0<a href=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/24.jpg\"><img decoding=\"async\" class=\"alignnone wp-image-570 size-medium\" title=\"24\" src=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/24-300x199.jpg\" alt=\"\" width=\"300\" height=\"199\" srcset=\"https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/24-300x199.jpg 300w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/24-451x300.jpg 451w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/24.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p style=\"text-align: left;\">Una volta smontati i bilanceri date un occhio alle &#8220;dita&#8221;. Non dovrebbero esserci scalini e la superficie cromata deve essere uniforme. Se c&#8217;\u00e8 uno scalino e sono mangiati fateli vedere ad un meccanico che se ne intende. A volte quando le valvole lavorano punate per parecchio tempo i bilanceri tendono a cunsumarsi.<a href=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/26.jpg\"><img decoding=\"async\" class=\"aligncenter wp-image-572 size-full\" title=\"26\" src=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/26.jpg\" alt=\"\" width=\"640\" height=\"425\" srcset=\"https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/26-300x199.jpg 300w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/26-451x300.jpg 451w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/26.jpg 640w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/a>Altre cose importanti da controllare sono le sedi delle valvole e le guide. Per le guide dovete prendere la valvola dalla parte del fungo (la fate scendere giusto un cm dalla battuta) e dalla parte dello stelo, poi vedete il gioco che hanno muovendole destra-sinistra. Sui manuali c&#8217;\u00e8 scritto qualcosa di come valutare se il gioco \u00e8 nella norma oppure no (mi pare sull&#8217;Haynes) ma non ci ho capito una mazza e l&#8217;ho fatto vedere direttamente ad un meccanico Ducati. Per valutare la tenuta delle sedi potete fare in due modi. Mettete della benzina prima nel condotto di aspirazione e poi nello scarico e dopo qualche minuto vedete se ci sono trafilaggi. Oppure girate la testa all&#8217;ingi\u00f9, riempite la camera di scoppio di benzina (o diluente) e poi con la pistola del compressore\u00a0 soffiate nel condotto dell&#8217;aspirazione e nello scarico. Non si devono vedere bollicine salire su! Visivamente la superficie di contatto sulla sede e sulla valvola devono essere perfettamente lucide e liscie. Mi pare di aver visto sui manuali lo spessore massimo che deve avere la fascia di contatto sulla valvola&#8230;.<\/p>\n<p style=\"text-align: left;\">Io in ogni caso ho portato la testa in officina per far smerigliare le valvole.<\/p>\n<p style=\"text-align: left;\">In fase di rimontaggio: per la testa state attenti che il dito del bilanciere sia perfettamente centrato sullo stelo della valvola. Il gioco delle valvole che mi \u00e8 stato fatto \u00e8 di 0.08\/0.1 (ognuno mi pare che faccia come cavolo gli pare :(). Prima di rimontare i perni verificate che non siano usurati (<strong>e rimontateli nel verso corretto, ossia con il foro per estrarli visibile!!!!!!<\/strong>). Non ho assolutamente smontato la coppia conica che non volevo entrare in un giro di schiaffi per rispessorarla.<\/p>\n<p style=\"text-align: left;\">Per il pistone controllate che non abbia eccessivi segni di grippaggio e che il perno di biella non sia consumato. Se sostituite le fasce ricordatevi la sequenza (dal basso verso l&#8217;alto: raschiaolio, fascia ad L, ultima fascia &#8211; che \u00e8 il rompifiamma??? ). Solo la fascia ad L ha un verso, il dentino dovrebbe andare verso l&#8217;alto ma in ogni caso la fascia \u00e8 marcata con una scritta &#8220;ALTO&#8221; dal lato che va in&#8230;. Se avete il pistone in mano spazzolate la testa per togliere le incrostazioni. Non toccate assolutamente la sede delle fasce se non con uno spazzolino da denti e WD40.<\/p>\n<p style=\"text-align: left;\">Al rimontaggio del cilindro ricordate di mettere le due guarnizioni tra il distanziale in alluminio. Consiglio di mettere un velo di pasta sigillante (mi era stato detto ma non l&#8217;ho fatto con il risultato che trafila olio). Per rimontare il pistone\/cilindro ho prima messo il pistone dentro il cilindro e poi ho messo il perno di biella. <strong>Occhio che il pistone ha un verso, ve lo siete segnato, vero?<\/strong> Ovviamente vi servono altre due mani per fare il lavoro :). Una volta rimesso il cilindro \u00e8 giunta l&#8217;ora di rimontare anche la testa. Mettete il nuovo OR (quello piccolo della 5a foto) sul &#8220;pippolo&#8221; del condotto dell&#8217;olio. Sarebbe buona norma sostituire anche l&#8217;OR in basso dove va ad incastrarsi il tubo della coppia conica (quello della foto numero 13). Appoggiate la testa e spingete verso il basso. Mettete i prigionieri e tirate il tutto, a croce, alla coppia di 3,5 &#8211; 4 kgm.<\/p>\n<p style=\"text-align: left;\">Ah, mi sono scordato: durante il rimontaggio utilizzate sempre olio sulle parti di scorrimento, quindi sulle fasce, sui perni etc&#8230;<\/p>\n<p style=\"text-align: left;\">Le fasce andrebbero messe a 120gradi anche se poi girano e vanno un p\u00f2 dove gli pare.<\/p>\n<p style=\"text-align: left;\">Rimontate il carburatore e la marmitta.<\/p>\n<p style=\"text-align: left;\"><a href=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/DSC_4065.jpg\"><img decoding=\"async\" class=\"alignnone wp-image-595 size-medium\" title=\"DSC_4065\" src=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/DSC_4065-199x300.jpg\" alt=\"\" width=\"199\" height=\"300\" srcset=\"https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/DSC_4065-199x300.jpg 199w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/DSC_4065.jpg 425w\" sizes=\"(max-width: 199px) 100vw, 199px\" \/><\/a>\u00a0 \u00a0 <a href=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/DSC_4072.jpg\"><img decoding=\"async\" class=\"alignnone wp-image-596 size-medium\" title=\"DSC_4072\" src=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/DSC_4072-300x199.jpg\" alt=\"\" width=\"300\" height=\"199\" srcset=\"https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/DSC_4072-300x199.jpg 300w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/DSC_4072-451x300.jpg 451w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/DSC_4072.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p style=\"text-align: left;\"><strong>\u00a0AGGIORNAMENTO DEL 12 Dicembre 2011:<\/strong><\/p>\n<p style=\"text-align: left;\">In realt\u00e0 quando dicevo che se non muovete la coppia conica inferiore tutto ritorna &#8220;in fase&#8221; \u00e8 giusto solo teoricamente. Questo\u00a0perch\u00e9 quando andate a montare il pistone (gi\u00e0 messo sulla biella) sul cilindro inevitabilmente qualcosa si muove, ossia l&#8217;albero motore gira un\u00a0po&#8217;. Una volta appoggiato il cilindro sul basamento dovete mettervi con un micrometro (e non ad occhio) a cercare nuovamente il PMS. Ed anche facendo cos\u00ec non \u00e8 detto che quando la semi-coppia conica superiore si unisce con quella inferiore qualcosa non si sposti; bisongna stare molto attenti.<\/p>\n<p style=\"text-align: left;\">Quindi il metodo sicuro al 100% \u00e8 solo uno: smontare il carterino di destra dove c&#8217;\u00e8 l&#8217;accensione, mettere i riferimenti presenti sull&#8217;ingranaggio dell&#8217;albero motore e sulla coppia conica inferiore in modo che coincidano, ed a quel punto inserire la testata.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>AGGIORNAMENTO: 13 Dicembre 2011. Ok, parliamo &#8220;brevemente&#8221; dei passi per revisionare il gruppo termico dello Scrambler. Prima di tutto togliete il carburatore e la marmitta; per quest&#8217;ultima \u00e8 vivamente consigliato l&#8217;utilizzo dell&#8217;apposita chiave per evitare di rompere tutte le alette della ghiera. Poi togliete il coperchio del rinvio del contagiri ed allineate i due riferimenti  [&#8230;]<\/p>\n","protected":false},"author":2,"featured_media":2770,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"footnotes":"","_links_to":"","_links_to_target":""},"categories":[8],"tags":[11,19,30],"class_list":["post-537","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-restauro-ducati-scrambler-250-by-luke","tag-ducati-scrambler","tag-restauro-ducati-scrambler","tag-revisione-gruppo-termico-ducati-scrambler"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Smontaggio e revisione testa-cilindro-pistone | Luke3d garage<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.luke3d.org\/luke3d_blog\/smontaggio-e-revisione-testa-cilindro-pistone\/\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Smontaggio e revisione testa-cilindro-pistone | Luke3d garage\" \/>\n<meta property=\"og:description\" content=\"AGGIORNAMENTO: 13 Dicembre 2011. Ok, parliamo &#8220;brevemente&#8221; dei passi per revisionare il gruppo termico dello Scrambler. Prima di tutto togliete il carburatore e la marmitta; per quest&#8217;ultima \u00e8 vivamente consigliato l&#8217;utilizzo dell&#8217;apposita chiave per evitare di rompere tutte le alette della ghiera. Poi togliete il coperchio del rinvio del contagiri ed allineate i due riferimenti [...]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.luke3d.org\/luke3d_blog\/smontaggio-e-revisione-testa-cilindro-pistone\/\" \/>\n<meta property=\"og:site_name\" content=\"Luke3d garage\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/LucaLukeBertini\" \/>\n<meta property=\"article:published_time\" content=\"2011-11-20T21:28:51+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2018-03-08T21:36:21+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2011\/11\/11_resize.png\" \/>\n\t<meta property=\"og:image:width\" content=\"560\" \/>\n\t<meta property=\"og:image:height\" content=\"368\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"luke3d\" \/>\n<meta name=\"twitter:label1\" content=\"Scritto da\" \/>\n\t<meta name=\"twitter:data1\" content=\"luke3d\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tempo di lettura stimato\" \/>\n\t<meta name=\"twitter:data2\" content=\"7 minuti\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.luke3d.org\\\/luke3d_blog\\\/smontaggio-e-revisione-testa-cilindro-pistone\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.luke3d.org\\\/luke3d_blog\\\/smontaggio-e-revisione-testa-cilindro-pistone\\\/\"},\"author\":{\"name\":\"luke3d\",\"@id\":\"https:\\\/\\\/www.luke3d.org\\\/luke3d_blog\\\/#\\\/schema\\\/person\\\/b4459c3a3d6f41f4dc99defe8acd29e4\"},\"headline\":\"Smontaggio e revisione 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