Swinging arm oil leaks

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Tamos
Posts: 50
Joined: Sat Oct 13, 2018 7:04 pm
Location: Maidstone

Swinging arm oil leaks

Post by Tamos » Sun Mar 17, 2019 8:37 pm

Back in 2013 there was a discussion on the old forum about oil leaking from the UJ end of the swinging arm if it is not pointing downwards to the rear (eg when car is fully loaded). Replies suggested that this should not happen as the UJ bearing has a built in oil seal.
The sw/arm from my donor bike (1998 California) certainly allows oil past the UJ if the wheel spindle end is higher than the UJ end, but I understood that this was by design and nothing can be done. Is this right or should I strip sw/arm (not a job I was planning to do) and replace bearing?
Also is there a preferred route for the front flexible brake pipes, ensuring they are not in way of engine which I won’t be fitting for ages?
Thanks, Tony

Weg
Posts: 807
Joined: Tue Sep 25, 2018 7:30 pm
Location: Huntingdonshire

Re: Swinging arm oil leaks

Post by Weg » Sun Mar 17, 2019 9:37 pm

Well worth checking the bearing while you can. Never know what may be lurking in that tube.
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IMG_0910a Final drive bearing.jpg

Weg
Posts: 807
Joined: Tue Sep 25, 2018 7:30 pm
Location: Huntingdonshire

Re: Swinging arm oil leaks

Post by Weg » Sun Mar 17, 2019 9:47 pm

Safe place to run the flex pipe is up through the chassis tube. Use some rubber sleaving top and bottom to prevent wear. Square plug at the top is from furniture fitting supplies.
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DSC02352a.jpg

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