Getrag 245 5 Speed Transmission Gasket Replacement

[bergie33]

I searched and searched and found very little info on replacing the gaskets in a 245 5 speed transmission.  I haven't installed the transmission in the car yet, so now is the time to do it, if any.  The transmission was from my own e21 that I owned for about a year.  It was pretty greasy and dirty, so hard to tell if there were leaks from the engine, or somewhere on the transmission.  Now that I have cleaned it all up and have it sitting out of the car, it appears it may be leaking out of one of the housing gaskets (gaskets in between the sections of the transmission housing).  The only few threads I have seen are steering people away from fulling dismantling the transmission and leaving that to the pros.  I am just not sure if that includes taking apart the housing to get new gaskets installed or if that is a fairly DIY job.  The e21 shop manual doesn't address replacing the gaskets as a stand alone job, so I can't tell what is involved in just replacing those gaskets.  Any help is appreciated.

[Preyupy]

If it is the gasket between front housing (bell housing) and the middle housing it is not a huge job.  If it is the one between the rear housing and the middle one you basically need to completely disassemble the transmission to get to it.  Even the front gasket can be tricky if you don't have the input shaft bearing puller.  You need to be very careful with that bearing it is virtually NLA 

[2002iii]

From the factory getrag 245's didn't have any gaskets between the cases, just case sealer.

 

Pictures would help.

 

Even removing the front case requires special tools, I had to make my own tools.

 

Having taken a few apart myself I wouldn't suggest trying it yourself.

 

 

[bergie33]

2 hours ago, 2002iii said:

From the factory getrag 245's didn't have any gaskets between the cases, just case sealer.

 

Pictures would help.

 

Even removing the front case requires special tools, I had to make my own tools.

 

Having taken a few apart myself I wouldn't suggest trying it yourself.

 

 

Here are a few pictures. Not sure where the leak is yet.  You can see the board it is sitting on is damp from transmission fluid. I'm just thinking ahead. I see the is sealant in the seams and not a gasket. Is it any easier to split the case creating only a 2" gap, enough to to clean the surface really well and put a new sealant in there? 

 

 

 

Edited October 12, 2022 by bergie33

[2002iii]

I wouldn't worry about just a few drops.

 

The front case comes off after you pull it about 1", no shortcuts.

 

If it was me I would install it and if it still leaks try to seal it with some RTV or possibly some jb weld if the RTV doesn't work.

[Son of Marty]

You call that a leak? Obviously you've never owned a Harley or a English car.