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Author Topic: burning oil. head off to do valve seals but...  (Read 8394 times)

Offline bytio

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Re: burning oil. head off to do valve seals but...
« Reply #15 on: November 07, 2015, 09:03:18 PM »
The cam tower stud holes, some of them go through to open air and will leak out and give you an external leak between fins if the threads are not sealed with a good sealer
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Offline Graeme77

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Re: burning oil. head off to do valve seals but...
« Reply #16 on: November 07, 2015, 09:23:47 PM »
I think one has been seeping a bit already so ill remove them all and seal the threads. I used to get a tiny trace of oil between the top two fins on the head infront of number 1 spark plug.
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Offline Graeme77

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Re: burning oil. head off to do valve seals but...
« Reply #17 on: November 08, 2015, 11:56:05 AM »
Cylinders are off and its all clear now. Bores are great, rings are spot on. I know it was rebuilt about 1000 miles ago but that was 15 years ago. Ill put it back together with new gaskets and im sure it will be fine.
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Offline Spitfire

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Re: burning oil. head off to do valve seals but...
« Reply #18 on: November 08, 2015, 07:43:31 PM »
Not an expert but it sounds like a gasket then, the only had nuts and washes that I know of that are sealed are on the F2 but that is a different story

Cheers

Dennis
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1976 CB750F

1977 CB750F2 In bits

1964 BSA A65R In bits
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