SOHC.co.uk Forums > CB750

Nearly done!

<< < (3/4) > >>

UK Pete:
Was the drip definitely oil, it could be unburnt fuel with oil and soot getting out from the exhaust gasket area due to flooding or incorrect mixture
Pete

Waggles:
If this is an F2 aren't they known for sometimes higher than normal wear on exhaust valve guides? could this be the cause bearing in mind the mention in an earlier post of a smoky exhaust? If that much oil is getting through it would have thought you might be able to check it by removing exhaust and plugs and wizzing it over on the starter perhaps. Alternatively I would have expected valve guide oil to all be burnt, perhaps refitting the exhaust with new copper gaskets to ensure a good seal would give an idea, if the leak stops but the zorst gets smokier that could be your culprit.

Robbo:
Pete - it's definately oil, but good idea to cover the bases

Waggles - it was smoking before I did the carbs, I had 125 main jets and bored out pilot jets fitted previously. 

I've ordered a new exhaust and will fit new copper seals when I put it on, if it's still leaking or smoking I will have to take the engine out and give it a good going over

Bryanj:
If its oil you are wasting your time changing the exhaust, it will be comming from one of the already mentioned places

Robbo:
I'm changing the exhaust as mine is full of holes and has no baffle what so ever.

I think I am going to take the engine out of the frame and check the bolts and cam seals - is it worth replacing the exhaust valves whilst the engine is out? Any other worthwhile things to do whilst I have the chance?

Robin

Navigation

[0] Message Index

[#] Next page

[*] Previous page