transmission drain plug [Archive] - Team Camaro Tech

: transmission drain plug


big396
Mar 9th, 09, 09:29 AM
I've got a 1969 396 w/ 4-speed transmission. I can't get the plug off the side of the transmission. Tried everything!! Used a long cheater bar and still couldn't get enough leverage. :mad: Anybody have any ideas? After I quit it dawned on me - could it have been a left-handed thread.

rszmjt
Mar 9th, 09, 09:40 AM
I've got a 1969 396 w/ 4-speed transmission. I can't get the plug off the side of the transmission. Tried everything!! Used a long cheater bar and still couldn't get enough leverage. :mad: Anybody have any ideas? After I quit it dawned on me - could it have been a left-handed thread.

No, They are RH 1/2" Pipe Thread. You could try heating the plug, then letting it cool and then try to loosen again. I have seen some real overtightened plugs before by some magilla gorilla on the lube rack. LOL.
I usually put the correct SPECIAL socket on the plug with a breaker bar and then give it a yank. It seems to work better if you shock it instead of just pulling on the bar. IMO. Hopefully the corners are not too rounded off. If they are and it is a steel plug, you could allways weld a nut onto it , and then discard it and get a new plug after it comes out.

deerhunter
Mar 9th, 09, 09:42 AM
I have never found one to be left handed thread. You might have to apply heat to the plug and run some wax around the threads once it starts getting hot. I had to do this on my daughters Toyota because some ham-fisted idiot thought both the fill plug and drain plugs had to be super tight. It takes awhile and it usually gets the oil hot enough that it needs changed but I guess that is the reason you are pulling the drain plug anyway. Be careful to not break the end of the plug off!

Hatman
Mar 9th, 09, 10:23 AM
I had the same problem with mine ,except someone had rounded the plug off . I just welded a nut on the plug waited a couple off minutes and it came off real easy.

DOUG G
Mar 9th, 09, 02:31 PM
Heat it up good then squirt it with penetrating oil (not WD-40) and I've heard candle wax works but haven't tried it. Let it cool some then try it again. May take a few times to let it wick into the threads.

EC's 327
Mar 9th, 09, 02:47 PM
Heat it up good then squirt it with penetrating oil (not WD-40) and I've heard candle wax works but haven't tried it. Let it cool some then try it again. May take a few times to let it wick into the threads.

The kids Crayons work well to........;)