Oil leak


AshishNJ
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Oil leak

Post by AshishNJ »

Bike has about 1000 miles after complete rebuild. No issues whatsoever
Went for a 100 mile trip last week and on the way stopped for lunch . I could see the smoke from near the pipes and upon close inspection, leak was evident. Small drops from where head meats lower engine block.
I am wondering if there is an easy was to address it or I am looking at un assembly

Image

steve murdoch icoa #5322
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Re: Oil leak

Post by steve murdoch icoa #5322 »

Are you sure the leak isn't a bit further up in the engine at the cam chain adjuster bolt?
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AshishNJ
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Re: Oil leak

Post by AshishNJ »

It did not seem like it . I will have to check more closely. Hopefully that is the case. If not , I am assuming that I will need a gasket replacement ?

daves79x
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Re: Oil leak

Post by daves79x »

There is a 90% chance it is not the base gasket. You will have to look it over very carefully to see where it is actually coming from. Steve is likely correct - the cam chain adjuster bolt is by far the most common leak, but it could be oil running down a stud and showing up there.

Changing the base gasket is no small job.

Dave

AshishNJ
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Re: Oil leak

Post by AshishNJ »

Thanks Dave.
I hope to see a sunny day and will take it out for spin
Hopefully I will find out why she weeps :)

Michael Vidovic
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Re: Oil leak

Post by Michael Vidovic »

if you give it to me for a year or two i will find the leak!!!!!! And I will not give it back till I find the bugger.
...always walk out of the room smarter than you walked in...

AshishNJ
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Re: Oil leak

Post by AshishNJ »

I don't see you finding the leak for a decade :)

Larry Zimmer
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Re: Oil leak

Post by Larry Zimmer »

Michael Vidovic wrote:if you give it to me for a year or two i will find the leak!!!!!! And I will not give it back till I find the bugger.
What a helluva offer!! :lol: Somehow, I think you 'read' that one, Ashish!
Larry Zimmer
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AshishNJ
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Re: Oil leak

Post by AshishNJ »

I was tempted to take up on the offer :)
She is hibernating now . I will have to get my hands dirty this summer

Larry Zimmer
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Re: Oil leak

Post by Larry Zimmer »

If I remember correctly (that's a big if for me!) there is a rubber plug in that cam chain adjuster. It will leak, often, with old age. (Beginning to sound like a theme for me!) Anyhow, look closely for that. Can be a bit tricky to notice it. Leaves such a light film coming down the block until it gathers in a little drop at the bottom. Look at Partzilla, or others. It's in the cam chain tensioner micro-fiche. #18 approx. $5. Good luck.
Larry Zimmer
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AshishNJ
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Re: Oil leak

Post by AshishNJ »

. I was able to pinpoint where oil is coming from. It is the bottom of the stud on the 6th cylinder . The one that is towards carbs. Unfortunately it is not at cylinder head but is where the crankcase meets the cylinders. I am guessing that would mean pulling apart entire top end ?
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daves79x
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Re: Oil leak

Post by daves79x »

Do you mean at the seam in the block/case or from out of the exposed area of the stud?

Dave

AshishNJ
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Re: Oil leak

Post by AshishNJ »

Out of exposed area where stud comes out. For now , I pulled this stud and put it back with high temp thread sealent. Will know how it goes . I am wondering where does the oil rise from on to the stud. To my understanding there is no through hole for this stud

daves79x
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Re: Oil leak

Post by daves79x »

No, that stud has a blind thread, but some of these castings are very porous and oil can still migrate out the threads.

Dave

AshishNJ
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Re: Oil leak

Post by AshishNJ »

Interesting 🤔. Hopefully it is fixed

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