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Transmission fluid

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77L130

Guest
I put my car up on ramps last night getting ready to install my new exhaust.When I looked in on her this morning there was transmission fluid all over the floor.I didn't have time to look at anything before I went to work so I don't know were its leaking.
Thought I would see if anyone else had ever experienced this.
Oh I have the front end raised.
Thanks
 
J

Joeverb

Guest
I would imagine its coming from the vent? My wifes 82 does this after sitting for a few days. It doesnt even have to be on ramps. Someone told me that when they sit the fluid drains from the converter and overflows or something to that affect. I have always had manual trannies in my race cars so im not sure what to believe.

Any one know this to be true? or even better know of a way to stop it?
 
Joined
Nov 4, 2000
Messages
947
Location
Scottsville, Kentucky
Corvette
08 Jetstream Blue Z51 coupe
I have never heard of a transmission that was filled to the correct level leak oil from the vent when parked. On ramps maybe, but I would suspect that the rear output shaft seal is leaking. This would be more apt to leak a larger quantity of oil when the car is up on ramps. It's not a hard one to change, you need to drop the drive shaft and remove it from the transmission, carefully pop the old seal out, and tap in the new with a soft, wide, punch and a hammer. Make sure it goes in straight and goes all the way to the bottom of the seat.
 

Jack

Well-known member
Joined
Dec 27, 2000
Messages
1,825
Location
Florence, SC (Timmonsville SC)
Corvette
71 War Bonnet Yellow VERT 71 BH Blue CPE (SOLD)
I vote rear seal too

77L30:
I'm inclined to agree with Dale ... and that you should first look to the tranny's rear seal. If it's the culprit ... then carefully note where the seal is riding on the driveshaft front yoke... then after you've pulled the driveshaft ... then you can see if the seal may have worn a small groove into the yoke. If there's a groove, you may need to replace the yoke. Also, the rear bushing that the yoke rides within may be badly worn. Bushing is located a bit further into the transmission ... just beyond the seal. If either the yoke has a bad groove or the bushing's badly worn ... then replacing the seal alone is not likely to provide a long-term repair. While you're under there making repairs... go ahead & change the tranny filter ... it's easy, cheap but kinda messy. As your tranny pan probably has no drain plug ... it'll be messy. If the car's a keeper, you might consider retrofitting the pan with a drain plug ... I bought (< $35) an aftermarket pan equipped w/ drain plug.
JACK:gap
 

chuck

Well-known member
Joined
Feb 7, 2001
Messages
193
Location
Tallmadge,Ohio
Corvette
1977 Dark Red Coupe/Buckskin 04 Spiral Gray/Gray
Joeverb I agree. I have also heard that the converter will leak if the car has been sitting for a long length of time. Chuck
 

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