Shift Rod Seal Installation Ty 915

[l_turn9]

I know there are some posts and a procedure on this question but I am seeing contradictory information. Some places say the Seal in the trans Nose should go in Spring Facing Rear while other places say the spring should Face forward. This job was a PITA and I don't want to d it again anytime soon so I'd like to do it right. Which is it? In or Out?

Thanks gang! Great Forum and Procedures.

[pmax]

I'll add a vote for spring facing rear ... flush to the base.

[l_turn9]

Thanks Pmax - hopefully the votes don't come in like the Iowa primary! I have looked everywhere I can think of and I get answers suggesting both methods, but I agree with you that the Spring should be to the rear....

[Flojo]

Originally Posted by pmax

I'll add a vote for spring facing rear

this

[proporsche]

there is only one correct way spring facing in..the other answers you have found are ridiculous;-)
It is actually not a PITA job.Very easy to do.Disconnect your shift coupler...on the allen bolt only...then under the car (safe with jack stands) usse a pic slide it next to the shaft .not next to the alu trans.nose cone.You do not want to scratch the alu.Slide it out towards the tunnel Clean up the area.....slide new seal onto the shaft-some people use some sealant on the outer edges- i do not-- i use 17mm open wrench to push it in ..it does not take to much power to push it...

that is all

Ivan

[l_turn9]

thanks proporsche - I will install it today so the problem will be resolved for me. I plan to put the seal in with the Spring side toward the engine, as you & others have suggested. For me it was a difficult chore to replace - I was worried I might scratch the alum and was probably too cautious - although caution is important. Anyway, hopefully this will clarify the seal orientation for others doing this.

[l_turn9]

Hi all,
Finished the seal install a couple of days ago - then I watched closely to see if the drips stopped. They DID! I also replaced the B/U Switch which was not pleasant - but only because I declined dropping the front of transmission to make access easier - which it undoubtedly would. WhenI removed the old Switch the trans oil flowed out!
But putting the new switch and washer in stopped that leak.
I then finished the seal install. First I coated the seal OD with some engine oil, pushed the seal against the trans, spring/open side toward the transmission, and pushed it in slightly with my fingers, then from the inside of the car, I used a piece of 3/4" PVC pipe cut to 4.25" or 110mm which I pushed against the seal then tapped it with a small hammer. Went in until flush with the end of the transmission nose. I then waited 2-3 days looking for drips and happily could find none, then installed the rear boot that seals the coupler compartment from the transmission area. I tried it without any prep and was not successful at pushing it onto the transmission. I then coated the boot inside the end that connects to the transmission with Silicon spray along with a little under the collar that is under the Coupler Cover. Both parts then slipped on with ease. Tomorrow I will install the Coupler and front boot. It'll be kind of nice to have this done... Thanks to all who helped.

[PNW_Boxer993]

Advice needed - I replaced my seal on a 77 915 as per guidance on this forum. Leak stopped, then started again weeks later. Ugh.

What are my options? Push the seal further into gearbox? Seal compound? The leak is not as bad as originally. Live with it?

Thanks in advance for responses.

[Eagledriver]

Originally Posted by PNW_Boxer993

Advice needed - I replaced my seal on a 77 915 as per guidance on this forum. Leak stopped, then started again weeks later. Ugh.

What are my options? Push the seal further into gearbox? Seal compound? The leak is not as bad as originally. Live with it?

Thanks in advance for responses.

Sometimes the shift rod is bent slightly (due to damage from an engine removal). This causes the shaft to be off center in the seal. You can minimize the problem buy leaving the transmission in second gear when parked. The shaft will be pulled out to its maximum length and the bend will be less there. Be carful if you are parked on a hill. Second gear may not hold the car from rolling.

-Andy

[PNW_Boxer993]

Thank you Andy. Will give it a try...