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Join Date: Jan 2006
Posts: 111
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911/01 transmission internals question
Well, after inspecting all the internal parts of my 911/01 transmission the only wearing I could find was on the 1st gear slider and reverse gear. I could not find any wear on the syncros or dog teeth of any gear. The weird part is I got grinding going into 2nd gear, but looking at everything 2nd gear is fine. Is this possible or am I just blind when it comes to inspecting these parts? Can the 1st gear slider and reverse gear be the only parts that wear without other parts wearing? I wish I could post pics but I can't find my damn camera
![]() Thanks.
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Amir 1970 911T 1967 912 |
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Found my camera!
![]() Here is reverse gear ![]() Here is 1st gear slider ![]()
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Amir 1970 911T 1967 912 |
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Location: Marysville Wa.
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any polishing on the curved surface of the syncro ring can cause grinding. the grinding is the teeth on the shift sleeve contacting the teeth on the dog tooth ring at different speeds because the syncro didn't slow down or speed up the free-wheeling gear to match the speed of the driven gear as the shift sleeve passed over it. the syncro's friction surface condition is very important. brake bands and the condition of the inner leading tooth face of the shift sleeve are other issues that affect shifting quality.
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https://www.instagram.com/johnwalker8704 8009 103rd pl ne Marysville Wa 98270 206 637 4071 Last edited by john walker's workshop; 04-29-2006 at 07:56 AM.. |
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Amir.. what did you do to take care of the problem going into 2nd?
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1967S Porsche Targa #500317S EURO 1972 BMW 2002Tii 1967 Triumph TR4a Irs 1967 Austin Healey "Bugeye" Sprite 1966 Austin Healey 3000 MKIII |
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Location: Arapahoe County, Colorado, USA
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Amir,
Have you disassembled 2nd gear syncro? There can be all sorts of subtle (or at least not obvious) issues that can conspire to prevent good synchronizations. Lay the pieces out in their original orientation and post some good clear images. The Forum can lead you through the process. Best, Grady
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Join Date: Dec 2005
Location: Towson, Maryland
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I sure hope someone can post some pictures. I'm very interested in learning all the little things to look for ?
Thanks, John John Ashford Towson, MD
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John |
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