Triumphrat

Oldschool

Looks like I have a leak somewhere around the front sprocket.Oil leaking on the exhaust pipe below.Can anyone give me some advice on replacing the output shaft seal?Thanks in advance.

Trophymick

Before you start replacing seals take the sprocket cover off, (with a bit of jiggling you won't need to remove the gear lever) then give the area a good clean with paraffin or similar, you may find it rather dirty in there.

Mine has done it for the eight years I've owned it, (and a lot of other Triumphs) especially when I have just oiled my chain. I take the sprocket cover off once a year and give it a clean inside.

I think it's a design feature for the old Triumph riders that like to see a drip of oil under their bikes!!!!




Trophymick

sigold83

I had this leak once. I found that the gasket for the front sproket also is part of the engine. In other words, you have to drain the engine of oil before replacing it. After that, I had no leak. Hope that helps.

Hope th pic below helps.

Attached Thumbnails

 

Oldschool

Thanks guys for the quick replies.

Biggreentrophy

Try to be sure the area (hidden by cover) around the drive sprocket is clean......all the months of chain lube and road crap form a nice nest for liquids and on warm days it comes out to play...

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curiousmike

I have had the oil leak at behind the counter-shaft sprocket (the seal) and the clutch pushrod seal.

Yellow = counter-shaft seal


You can see the pushrod seal here ( left )


If you've never had the sprocket cover off, be prepared for gunk -- but don't assume that's the "oil leak" either.
[!img]http://www.coustier.com/trigunk2.jpg[/img]

Again, the yellow lines on this photo were the seals I replaced.
The oil manifested itself by the red circle ( gear shifter ).
[!img]http://www.coustier.com/trileak2.jpg[/img]

It might look like the bottom bolt ( red arrow in below photo) is impossible to get out without removing the shifter ( green arrow ).
Just push your shifter full up ( or full down ) and you can wiggle that bolt out without disassembling a good portion of your foot rest.

Oldschool

Thanks Mike,Your situation is definitely more in keeping with my suspicions and with what I am seeing.(oil dripping off the shaft of the shifter.I still haven't pulled the cover yet though) By the way, how did you pull the seal?

curiousmike

It's helpful to have the new seal in your hands before removing the old one ( to get an idea of how it is.)
[If you're special ordering the seal and paying for shipping, you might consider buying two. If this is something your dealer is order, just order the one.]


There is a lip/surface behind the seal (what it butts up against ), so you want to be careful with whatever you punch thru the seal to pull out that you don't punch too hard/far and nick the lip/surface.

I actually used a small screw to start, then put a larger screw in and pulled... with a little bit of flat blade screwdriver thrown in the mix.

If you end up doing the clutch-pushrod seal, note that there is NOT a lip/surface behind it and you can push that seal in too far.

If you've never removed the cover before, be patient getting the highlighted bolt out. It's a bitch, but just fiddle with it and it will come out. Also note that there are dowels on the cover. Once you get all the bolts off (including clutch cylinder), the cover will be hanging onto the dowels. It can take some force to get the cover off because the dowels sorta pinch it in there.
Be sure the dowels are in and aligned when re-installing the cover.
If they are not, you can have the clutch-pushrod mis-aligned (slightly) and that can cause that seal to have issues.

these were the photos I couldn't post in the above posting (too many photos in single post)
If you've never had the sprocket cover off, be prepared for gunk -- but don't assume that's the "oil leak" either.


Again, the yellow lines on this photo were the seals I replaced.
The oil manifested itself by the red circle ( gear shifter ).