1979-1993 & 94 Conv [Subscribe to Daily Digest] |
 | [Main C900 Bulletin Board | BBFAQ |
Prev by Date | Next by Date | Post Followup ]
Member Login / Signup - Members see fewer ads. - Latest Member Gallery Photos
Re: ? for transmission experts Posted by CMyles [Email]  (#1126) [Profile/Gallery]
(more from CMyles) on Thu, 12 Jul 2007 20:52:44
In Reply to: ? for transmission experts, DaleG, Thu, 12 Jul 2007 08:30:17 Members do not see ads below this line. - Help Keep This Site Online - Signup |
DaleG,
Yeah that would be a lot of stack clearance. Something is wrong. Three things would cause way too long a measurement here; 1)Too many shims between the pinion housing and case, (was this unit previously rebuilt? How thick is THAT shim pack?) 2)Some other reason the pinion housing is not fully seated (eg. loose bolts), 3)The pinion shaft and nut are falling rearward (by 0.079"!!!) due to extreme wear of the front pinion bearing when you stand the unit up to take the measurement. You'd feel massive axial freeplay if that was the case.
I suspect that there is a problem with your measuring technique. Be sure that the tip of your caliper isn't in the groove on the face of the nut. You should be measuring from the mating surface of the case to the face of the nut. I lay a precision ground straight edge across the mating surface and use a tubular inside micrometer to make the reading (or just use the Saab tool). Be sure that the mating surface is clean, no gasket maker remaining. I suppose that if the nut was too thin (how could that be?) you could get this situation.
The way that I rebuild these is to take the whole thing apart and clean every part then re-assemble it using the original shims. Replace any damaged shims with new ones of the same thickness. This nearly always works just fine and is the system that most Saab line mechanics used to employ. Sometimes this results in an improper setting which could be due to a previous rebuilder (or the factory) making an error, so ya just correct it.
On other units there are times when it's important or useful to get a pre-disassembly reading and I think that's why this notion proliferates in service manuals (even factory manuals) but in this case it's really just an unnecessary exercise.
Don't know what else to offer. Good luck.
posted by 198.233....
, Thu, 12 Jul 2007 20:52:44 <-- Viewing This Message, Fri, 13 Jul 2007 19:46:43
No Site Registration is Required to Post - Site Membership is optional (Member Features List), but helps to keep the site online
for all Saabers. If the site helps you, please consider helping the site by becoming a member.
 |
 |
 |
 |
 |
