5th gear seal in trans Harley Transmission, Harley Clutch & Harley Primary Discuss 5th gear seal in trans in the Harley Tech & Harley How-to forums; I have a 95 Heritage with a leaking trans seal. Where is the 5th gear seal & how is it replaced. I have removed the inner & outer primary and ...

[alntlng]

I have a 95 Heritage with a leaking trans seal. Where is the 5th gear seal & how is it replaced. I have removed the inner & outer primary and final drive gear. I have removed the Main seal and have located the "quad" oring seal.

what am i missing? would like to be riding this weekend!

i have attached a pic of my trans in the current state of dis-assembly.

[alntlng]

there must be someone out there that can help a dummy out?

[frisco-rigid]

Hey Al

I changed a few oil seals on the drive side and I am acquainted with only 2 oil seals that leak to the outside world there..

The Transmission Main Oil Seal which you had no prob finding..

And the Main Drive Gear Oil Seal..
The Main Drive Gear Oil Seal fits around the Main Shaft and slips in between it and the Main Drive Gear..
I have a feeling this is the seal you're referring to..

It is about 1 1/4" OD and slips into position about .080" inside the Drive Gear..

There is a special tool used for it's installation and it really makes it easy..
You can get it done without it but you might ruin a couple first,, I sure did..

Have a ball

[alntlng]

if i am looking at the main shaft correctly, looks like there is a machined surface or "bearing race" that needs to come off. I see there is a puller for this race, but i am unsure how to operate it. do you leave the pulley on the 5th gear or do you leave it off?

[frisco-rigid]

Hi Al

Now I am not so sure we are talking about the same seal..
You might be talking about a seal I am not familiar with..

The seal I refer to slips onto the Main-Shaft and into the thin area between the Main-shaft and the Main Drive Gear..
Look closely between the main shaft and the main drive gear..
Just a few Thousands in you will see the seal..

All you need to remove to get to the Main Drive Gear Oil Seal is the outer primary, drive assembly and inner primary.. None of the other parts you removed..

Up in the Tranmission Main Seal area, that you have exposed and are talking about, I am not familiar with any seal other than the Transmission Main Seal..

I still think the "5th gear seal" you are talking about is the Main Drive Seal I mentioned..

If that's not the seal you're trying to replace I can help you no further..