small trans leak

[cmcfaul]

I probably picked up the end of the transmission by the shaft and squished a seal. The small puddle is after a couple of days so not a huge deal. While its out is this an easy fix?

Thanks,

Chris

73 911 E

915 trans

[toddu]

Seal doesn't look like it's seated in far enough.

At any rate, easy fix. You may be able to pick the seal out from the outside. Worst case, take the nose cover off and drive it out from inside, use 17mm socket from outside to drive new one in, little curil-t on it's edge.

Todd

[Henry Schmidt]

Originally Posted by cmcfaul

I probably picked up the end of the transmission by the shaft and squished a seal. The small puddle is after a couple of days so not a huge deal. While its out is this an easy fix?

Thanks,

Chris

73 911 E

915 trans

Chris, it's not uncommon for the shift shaft to get bent during removal or install. Perhaps a previous mechanic?
Check to see if it's straight.
There is also a better seal for these early transmissions. The factory superseded it to the late seal but we can still get the early seal. It has a 14mm ID (14x24x7) as apposed to the 15 mm ID (15x24x7) offered in most parts suppliers.

[cmcfaul]

shaft looks streight to me. Pelican sells the seal

Transmission Shift Shaft Selector Seal, (915/930). Is this the late seal?

Chris

[Henry Schmidt]

Originally Posted by cmcfaul

shaft looks streight to me. Pelican sells the seal

Transmission Shift Shaft Selector Seal, (915/930). Is this the late seal?

Chris

You will have to check the seal specs but I'm pretty sure that Pelican only sells the late seal. I'm not sure if anyone else sells the early seal. I had to cross reference quite a few companies to get the correct dimensions for early shift shafts.

[cmcfaul]

Henry,

Can you sell me the correct, best seal. The engine/trans is installed. Prior to installation, I pushed the seal further in hoping it would stop the leak but appears to be worse.

I assume the seal can be installed without taking the engine out. Maybe just the trans mount yes?

Do I have to remove the old seal or can it be pushed further in to make room for the new one.

Many thanks,

Chris
73 911 E with 915 trans.

[Jon B]

Originally Posted by Henry Schmidt

Chris, it's not uncommon for the shift shaft to get bent during removal or install. Perhaps a previous mechanic? Check to see if it's straight.

There is also a better seal for these early transmissions. The factory superseded it to the late seal but we can still get the early seal. It has a 14mm ID (14x24x7) as apposed to the 15 mm ID (15x24x7) offered in most parts suppliers.

Henry,

Unfortunately true about 911/912 shafts being easily bent, many are, have to check every one on centers. Not only potential leak issue, but can bind in front cover, causing shift problems.

All selector shafts in 356 and 911 through '86 were 15mm. The 914 tail-shift shafts were 14mm, then went 15mm on sideshift. Pelican correctly lists two different 914 shift seals, but 14mm is NLA. They can be sourced elsewhere. Seal garter springs can also be tightened a bit if necessary.

[cmcfaul]

OK, strike one on fixing my trans leak. Made it way worse. Could not get the old seal out or successfully install a new one on top of the old one while installed in the car.

So, engine is out. How difficult is it to remove the front of the trans to get the shift seal out. Does it require a gasket?

[Classic]

Yep, new gasket required.

[yelcab1]

New gasket new seal, and not that bad of a job with the gear box on the bench like that. 1 hour top.

[cmcfaul]

Got the old seal out with a pic set. Put the new seal in...thanks Henry, and does not leak a drop. Total time of 10 minutes. Added two containers of Royal Purple gear oil and should be good to go.

While engine is out going to replace the crank seal which is leaking a bit as well.

Chris

73 911 E