Re: Whine? - Saab Sonett Bulletin Board - Saabnet.com
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Re: Whine?
Posted by eric in vermont [Email] (more from eric in vermont) on Thu, 21 Mar 2013 09:04:13
In Reply to: Whine?, StephenB, Thu, 21 Mar 2013 02:07:39
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My guess is that it's the ring and pinion. The primary failure mode of the V4 gearbox is the shaft nuts lose their locking ability and loosen up slightly. This causes a change to the ring and pinion mating surface such that the meshing depth is decreased. This reduced surface now begins to wear at a much greater rate, with a resulting WHINE. If left, the gearbox will eventually go KERBLAM.
First order of business is to change your gearbox oil and replace it with a good synthetic gear lube. Jack Ashcraft, gearbox guru, recommends Valvoline. Others have good success with Redline MTL. Examine the used oil to see what comes out, giving you an idea of how much trouble you're in. If you're lucky, this may quiet things down a bit.
The next step is to remove the gearbox and to an access wear and tear.
Good luck!
eric in vermont
posted by 63.241.174...
Posts in this Thread:
- Whine?, StephenB, Thu, 21 Mar 2013 02:07:39
- Re: Whine?, eric in vermont, Thu, 21 Mar 2013 09:04:13 <-- Viewing This Message
- Re: Whine?, StephenB, Fri, 22 Mar 2013 19:12:10
- Re: Whine?, friendofbear , Fri, 22 Mar 2013 20:39:22
- Re: Whine?, eric in vermont, Sat, 23 Mar 2013 03:44:31
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