Guest shadetree77 Posted August 9, 2012 Share Posted August 9, 2012 I've developed a pretty good leak on my '52 Special with Dynaflow trans. I investigated today and it is coming from inside the bell housing. It is seeping out from around the hand hole cover and the bell housing dust cover. After removing those things and starting the engine, it seems to be leaking on the side where the torque converter attaches to the transmission. I can't see the leak because of the converter and the flywheel but it's definitely leaking down the inside of the bellhousing on the transmission side of the flywheel and not the engine side. It's a steady leak that seems to pool inside the bell housing when the car is idle, then when I start it up the motion of the converter and flywheel throws out the pool of fluid. Then after a minute of running, the leak slows to a drip. I'm assuming this is a seal inside the transmission and can't be fixed without removing it. Anybody have any thoughts or advice on this? The car drives just fine with no hesitation or slippage from the transmission. As long as I check it quite often, should it be OK to drive it? Link to comment Share on other sites More sharing options...
Guest chevy_dude97 Posted August 9, 2012 Share Posted August 9, 2012 Is the trans fluid milky or foamy? One thing you need to worry about with leaks is if it starts to pull air in while driving decreasing pressure inside. Link to comment Share on other sites More sharing options...
Guest shadetree77 Posted August 9, 2012 Share Posted August 9, 2012 Nope. It's bright red and clear. Link to comment Share on other sites More sharing options...
Guest chevy_dude97 Posted August 9, 2012 Share Posted August 9, 2012 The biggest thing I would worry about is the seal, if it is a seal getting worse. Increasing your leak, possibly stranding you. Trannys are no joke when it comes to leaks, I can tell you of the 5 transmissions I personally blew up. The two that could have been prevented was ones that had a leak. The other ones couldn't handle the power and one was improperly rebuilt. Link to comment Share on other sites More sharing options...
Aaron65 Posted August 9, 2012 Share Posted August 9, 2012 First, try tightening the pump cover. When you remove the inspection cover on the bottom of the bellhousing, you'll see a bunch of bolts. Only three are to hold the flexplate to the converter (pump). The rest are to hold the converter cover on. Behind that is a big o-ring. If these bolts are loose, it will leak like holy heck. So, torque these to 25 ft. lbs. and check it out again. Of course, it seems you'll never stop a Dynaflow from completely leaking. If these are tight, you'll have to remove the trans or live with it, because there is also a front pump seal that is a standard lip seal in there. Link to comment Share on other sites More sharing options...
old-tank Posted August 9, 2012 Share Posted August 9, 2012 RobertAdd a bottle (up to 3 bottles) of STP oil treatment. It will probably slow the leak to barely noticeable for a while. In the meantime study the transmission for a winter project.Willie Link to comment Share on other sites More sharing options...
1957buickjim Posted August 10, 2012 Share Posted August 10, 2012 I second Willie..he knoweth what he speaks about. Link to comment Share on other sites More sharing options...
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