Author Topic: rear chain sprocket seal  (Read 93 times)

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Offline Lbush

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rear chain sprocket seal
« on: January 15, 2021, 11:26:19 am »
Can anyone tell me if i can replace this rear sprocket seal without opening up the case.

Online 69cb750

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Re: rear chain sprocket seal
« Reply #1 on: January 15, 2021, 11:33:34 am »
It can be done ...
Oil the seal and case.
You need a large socket or fabricated tool to slowly tap the seal in straight.

Offline BenelliSEI

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Re: rear chain sprocket seal
« Reply #2 on: January 15, 2021, 11:41:45 am »
To remove, I’ve punched in a pair of tiny holes, opposite to each other. Then screw in a sharp, #10 size, large screw, in both holes. With a small pry bar, slowly back them out. A small carpenter’s style bar, with a small “V” but in the end, works best. Also works well to remove sticky, old fork seals!

Install the screws very near the outside diameter of the seal. They usually have a metal ring in there.

Offline Lbush

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Re: rear chain sprocket seal
« Reply #3 on: January 15, 2021, 12:26:36 pm »
One more question for you guys.
Motor has 8000 miles on it. Sprocket seal isnt leaking but Ive got the motor on the bench and a new seal.
Im certain youd say replace it. ??

Offline BenelliSEI

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Re: rear chain sprocket seal
« Reply #4 on: January 15, 2021, 12:48:15 pm »
It can be done in the bike...... lube it with some oil and leave it alone.

Offline Lbush

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Re: rear chain sprocket seal
« Reply #5 on: January 15, 2021, 01:02:29 pm »
if that's the case, I'll leave it alone. Thanks for all your help.

Offline BenelliSEI

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Re: rear chain sprocket seal
« Reply #6 on: January 15, 2021, 01:12:43 pm »
Should be fine!

Online bryanj

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Re: rear chain sprocket seal
« Reply #7 on: January 15, 2021, 09:58:21 pm »
 If it dont leak leave it alone
Semi Geriatric ex-Honda mechanic and MOT tester (UK version of annual inspection). Garage full of "projects" mostly 500/4 from pre 73 (no road tax in UK).

Remember "Its always in the last place you look" COURSE IT IS YOU STOP LOOKIN THEN!