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

Trans leak on 87

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Old Mar 22, 2008 | 08:31 PM
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Default Trans leak on 87

I have a transmission leak on my 87 coupe. Check fluid level regularly, and it is never low, actually above the full line. Haven't needed to add fluid yet. Could it be over filled and causing a leak?
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Old Mar 22, 2008 | 10:07 PM
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Can you determine where it coming from? Front or back or somewhere in the middle?
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Old Mar 23, 2008 | 06:40 AM
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Two drops in front and one on right side rear
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Old Mar 23, 2008 | 10:35 AM
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Well the one at the front is the front seal. I had the same leak on my trans. I had 116,000 on mine so I went ahead and had it rebuilt while it was out . I also replaced the rear main on the engine while the trans was out . If your car has a lot of miles and you have to pull the trans, its a good time to rebuild it..WW
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Old Mar 23, 2008 | 01:27 PM
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88,000 miles. Is it safe to just live with the leak and check fluid level regularly. Wouldn't want to rebuild until absolutely necessary. It runs fine, shifts firmly and no problems otherwise. It pretty much sat for a couple of years before I bought it.
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Old Mar 23, 2008 | 02:22 PM
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If it is just a couple of drops no biggie. As long as you check your level often and you don't start to see real puddles under there I wouldn't sweat it
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Old Mar 23, 2008 | 05:51 PM
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Originally Posted by Iroc57
If it is just a couple of drops no biggie. As long as you check your level often and you don't start to see real puddles under there I wouldn't sweat it
88,000 is not enough miles to rebuild unless your having problems with the trans. The sitting may be what caused your leaking, not using a car is the worst thing you can do. WW
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Old Mar 24, 2008 | 08:50 PM
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OK, Thanks for the advice, will keep an eye on it.
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Old Mar 25, 2008 | 09:36 PM
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One more thing, just taking a shot here, is there a vent on the tranny in case of over filling where it might be coming from? (Just wishful thinking, I thought I heard that mentioned before). Thanks.
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Old Mar 25, 2008 | 10:01 PM
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The vent comes out on the top center of the trans. It is curved to the right side of the car, and will puke fluid if overfilled. Put a mirror up there and have a look.
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