HarleyTechTalk

Technical Forums => Shovel Head => Topic started by: atengnr on June 06, 2020, 07:57:04 AM

Title: Tools for mainshaft seal replacement
Post by: atengnr on June 06, 2020, 07:57:04 AM
Hey all, could someone summarize the special tools that I need for replacing the mainshaft seals on my 82 fxr?

Thanks
Title: Re: Tools for mainshaft seal replacement
Post by: Hybredhog on June 06, 2020, 08:42:53 AM
    Jim's makes a "seal installer" press cup that works with their long main sprocket nut socket. The later in my opinion is a must have to get the sprocket nut tight enough. I machined out my own seal pusher, and is useful for a lot of things. But Georges Garage has better prices & for most people just as good. Having a lathe will pay for itself 10 fold for the amount of tools you can make.  Once you pull out the seal race, a conventional seal puller hook can be use to remove the old seal. But sometimes that seal race can be rusted onto the drive gear & a bitch to pull, be careful with the race, those are an odd & specific size. Not sure if it readily available for old chain drives, but replacing it would be a good thing.
Title: Re: Tools for mainshaft seal replacement
Post by: atengnr on June 07, 2020, 03:03:59 PM
thanks alot.  And what tools do I need for inner primary removal?  Just the chain locking tool, clutch hub puller?

Thanks
Title: Re: Tools for mainshaft seal replacement
Post by: Hillside Motorcycle on June 08, 2020, 03:51:55 AM
Many times, the main seal is not the leaker.
It is usually the bronze babbited main drive gear bushing that has lost it's fitment, on the mainshaft OD.
Title: Re: Tools for mainshaft seal replacement
Post by: prodrag1320 on June 08, 2020, 04:57:36 AM
Quote from: Hillside Motorcycle on June 08, 2020, 03:51:55 AM
Many times, the main seal is not the leaker.
It is usually the bronze babbited main drive gear bushing that has lost it's fitment, on the mainshaft OD.


yup,pretty much what we see here too
Title: Re: Tools for mainshaft seal replacement
Post by: Racepres on June 08, 2020, 05:55:05 AM
Quote from: Hillside Motorcycle on June 08, 2020, 03:51:55 AM
Many times, the main seal is not the leaker.
It is usually the bronze babbited main drive gear bushing that has lost it's fitment, on the mainshaft OD.
On a 5 speed FXR??
Title: Re: Tools for mainshaft seal replacement
Post by: Racepres on June 08, 2020, 06:28:23 AM
Quote from: atengnr on June 07, 2020, 03:03:59 PM
thanks alot.  And what tools do I need for inner primary removal?  Just the chain locking tool, clutch hub puller?

Thanks
Your '82 is just like a 4-speed Shovelhead as regards the primary side... You tube has videos showing Tools and procedures for Clutch removal..
Title: Re: Tools for mainshaft seal replacement
Post by: atengnr on June 08, 2020, 09:30:29 AM
Dang, it seems that with all the special tools needed (clutch hub tool, bearing race puller, sprocket nut, seal installers, it may be cheaper for me to have an indy do this work.  I have called one locally and he thought he could do the work for < $500.  Does anyone rent these tools?

Thanks