C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

4+3 Overdrive issue. NEED HELP!!!!!!

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Old Feb 28, 2003 | 07:23 PM
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Default 4+3 Overdrive issue. NEED HELP!!!!!!

I took my 85' vette to a reputable shop to have a new Centerforce dual friction clutch installed Thursday. Today the manager called me to ask me to come over and look at something he thought i should see.

There are 2 pins protruding out of the case of the overdrive unit. They stick out about an inch each, and appear to have been pushed through the case from the inside. This was all noticed because I had also asked them to repair a transmission fluid leak that I assumed was from the fluid line which threads into the overdrive unit right next to theses rods. The fluid line was not the problem, the fluid is leaking from around one of the rods which is shoved through the case.

Now for the kicker. The car has 65000 orig. miles and the overdrive works flawlessly. How can there be to internal parts sticking through the case and still have the unit work without a problem. It shifts into overdrive smoothly, no noise, no nothing..

Thanks to anyone who can help. I am going to try to attach some photos I took while the car was on the lift..

Sturtzy [IMG][/IMG]


[Modified by sturtzy85L98, 11:07 PM 3/2/2003]
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Old Feb 28, 2003 | 07:28 PM
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I might be able to help once you get the pictures up, I've got a couple of those trannies. :)
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Old Feb 28, 2003 | 08:01 PM
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Default Re: (scorp508)

Trying to post pics..


[Modified by sturtzy85L98, 7:08 PM 2/28/2003] http://myfirstvette.20megsfree.com/photo.html


[Modified by sturtzy85L98, 7:09 PM 2/28/2003]
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Old Feb 28, 2003 | 08:08 PM
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Default Re: 4+3 Overdrive issue. NEED HELP!!!!!! (sturtzy85L98)

I have one apart on the bench as we speak and it has the very same rods you refer to, initially I thougt I had a problem also but they are normal. Not having looked at it very closely but on initial look they appear to ma ybe part of the manufacutring process. I know exactly what you refer to,dont worry, they appear to be normal..... frank
ps mine is an 85 also
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Old Feb 28, 2003 | 08:12 PM
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Default Re: 4+3 Overdrive issue. NEED HELP!!!!!! (frank moran)

Thanks Frank and Scorp. I can't get this stupid pic. thing figured out, so here is the web page I just created. If you could please go there and look and let me know what you think. http://myfirstvette.20megsfree.com/photo.html

Thanks

Sturtzy
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Old Feb 28, 2003 | 08:18 PM
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Default Re: 4+3 Overdrive issue. NEED HELP!!!!!! (sturtzy85L98)

Like Frank said you're fine. :thumbs:

You can barely see one of them in this picture, the other is hidden by the coolant tube.

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Old Feb 28, 2003 | 11:00 PM
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Default Re: 4+3 Overdrive issue. NEED HELP!!!!!! (scorp508)

yep, I have the same thing, they almost look like they are part of the manufacturing and casting process. Mine is in the trunk right now, tomorrow I need to set up the clutch pack clearance to complete a rebuild on the unit.
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Old Feb 28, 2003 | 11:01 PM
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Default Re: 4+3 Overdrive issue. NEED HELP!!!!!! (scorp508)

ps Scorp, where have you been getting yuour OD filters??? thanks
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Old Feb 28, 2003 | 11:04 PM
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Default Re: 4+3 Overdrive issue. NEED HELP!!!!!! (frank moran)

ps Scorp, where have you been getting yuour OD filters??? thanks
Ecklers for about $23 I think. It should come with a new rubber grommet too. You can actualy reuse the filter I am told if you clean it in some kerosine and blast it off with air.
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Old Feb 28, 2003 | 11:33 PM
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Default Re: 4+3 Overdrive issue. NEED HELP!!!!!! (scorp508)

Ecklers or Mid America both sell the filter kits for under $20. I just ordered one from Ecklers about 10 minutes ago. They have the cheaper shipping.

Thanks again for all the help guys

Sturtzy
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