Re: Question for cmyles/tranny experts - Saab 900 Bulletin Board -

[General | Members | C900 | 9000 | NG900 & OG93 | 93 | 95 | NG95 | 99 | Sonett | Vintage Models | Performance | Detail | Clubs & SOC | Other Cars | FAQs | Gifts | Member Photo Galleries | Member Directory | Classifieds | Service/Mechs | Manuals | *Buddy Registry | *Mileage Registry | Polls | What's New | Raffle | Photo of the Month | Sponsors]

C900 Bulletin Board
1979-1993 & 94 Conv [Subscribe to Daily Digest]
(Search Author's Posts: e.g. Keyword:username)*Members Only

[Main C900 Bulletin Board | Post Followup | BBFAQ ] [ Prev by Date ] [ Next by Date ] Member Login / Signup [Latest Member Gallery Photos]
Re: Question for cmyles/tranny experts
Like This Post:
Posted by Name Left Blank (more from Name Left Blank) on Sat, 21 Dec 2019 06:57:38 Share Post by Email
In Reply to: Re: Question for cmyles/tranny experts, Cmyles [Profile/Gallery] , Fri, 20 Dec 2019 10:26:57
Alert me when someone posts in this thread:


Impressive..professionals can diagnose from a far. Thank you

When I read: "typical of gearboxes that have been without oil" I swallowed three times, took a moment away from the reading...

Indeed, there was a heavy leak. I replaced the 93 gearbox with an older 88 model. The 93 gear box has the side cover with the(cant check oil level) nut. In the haste, I mounted the older(with hole and dipstick) box, yet did not switch covers. I cant recall precisely if the 93 box was easy to get to, or I told myself i eould switch later on the car.

As this vehicle is an S model, it has the exhaust pipe tgat runs close to the cover, so one must drop the exhaust to access it. That contributed to laziness. What I did was cork the hole/jambed it..but seeping of oil was evident a few days later. I fell into "plumbers have leaky pipe" trap.

A while later; a pool of oil notice- that cork was gone! Gaping hole; long story short..whining began after going into 3rd gear. I poured oil; quieted down..then reappeared. Oil made no difference in terms of the whining in 3rd, now 4th. I, the careless one; kept motoring along..with the intention to "fix in a few weeks. I have rebuilt quite a few gearboxes many years ago...but I realized especially after reading your reply...that I was simply a parts changer..not a person who could diagnose- as you did through the computer. There lies the difference.

Questions, if I am welcome to bother you some more:

Is the whining from the box usually the pinion bearings? If it whines in specific gears(in this case...3rd and forth) does the point to the gears themselves?

Being that it was driven less oil; should I expect the pinion gear to be unacceptable? I'm also wondering if the forks,etc

I'm wondering are parts still available; such as that layshaft that always needed to be replaced for that wirn area under the bearing.

That tightening of the pinion nut/crush spacer preload set up:

Do you follow the manual with the instructions to use the spring tool with the hook? I did buy one years ago, but was told by a Saab tranny rebuilder, to just tighten the nut as hard as I can...where turning the bearing housing took a bit of medium force to turn.

Also, should the metal gasket between the trans/engine be replaced with grey silicone-skipping the gasket completely?

Thank you in advance Cmyles..great help. Appreciate it.

posted by 107.77.226...
Posts in this Thread:
Alert me when someone posts in this thread:

Post a Followup

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.

Name: Member Login / Signup [Latest Member Gallery Photos]
E-Mail: (Optional)
Re-Enter E-Mail: (Confidential & Secure - Not revealed to other users!)
Note: Please check your spam folder for BB responses.


Posting rules are simple - No for sale/wanted ads may be posted here - use the site classifieds.
You may not cross-post your message to multiple BBs.
Not permitted: political/religious topics and being disrespectful (personal attacks, insults, etc...).
Site Members do not see any red text, inline ad links, bottom of page anchor ads, box ads, or anti-spam check.

Message: (please no for sale/wanted classifieds - post those in the Classifieds)
Links are now automatically made active, no need for any special code (or use the Option Link field below) - don't put links in () or end with a '.'
To add inline images to your post, use [img][endimg] (or use the Optional Image Link field below).

Links are now automatically made active, no need for any special code (or use the Option Link field below) - don't put links in () or end with a '.'
To add inline images to your post above, use [img][endimg] (or use the Optional Image Link field below).

Optional Link: (e.g.
Link Title: (Optional)
Optional Photo/Image Link: (e.g.
Photo/Image to Upload: [Member Only Feature] - Sign Up

The content on this site may not be republished without permission. Copyright © 1988-2020 - The Saab Network -
For usage guidelines, see the Mission and Purpose Page.
[Contact | Site Map | on Facebook | on Twitter | Shop Amazon via TSN | Site Donations]

This is a moderated bulletin board - Posting is a privilege, not a right. Unsolicited commercial postings are not allowed (no spam). Please, no For Sale or Wanted postings, SERIOUSLY. Classifieds are to be listed in The Saab Network Classifieds pages. This is a problem solving forum for over 250,000 Saab owners, so expect to see problems discussed here even though our cars are generally very reliable. This is not an anything goes type of forum. has been a moderated forum since 1988. For usage guidelines, see the Mission and Purpose Page. Please remember that you are not anonymous. Site Contact | Site Donations | Other Sites by SP -
Your address is: - Using CCBot/2.0 ( - Logged.

Site Members do not see red text instructions, bottom of the page anchor ads, or box ads.
Click here to see all the Site Membership Benefits!