SOHC.co.uk Forums > CB750

What is the screw plug on the front of the engine.

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Warthog1959:
I have a bit of a leak at the front of the engine, where there is a circular plug with a slot in it. I can't move it with a large flat head. The slot is a bit chewed. I obviously need to replace it, but don't even know what it's called or what it's for. Neither do I know how I'm going to get it out. Any advice on this and why it would leak oil. :-\

Warthog1959:
Well I've had 38 reads and no answers, I'm thinking either I've written it really badly or nobody knows. I'm still hoping before I have to go to the American site  ;D

UK Pete:
Hi think it is something to do with the main oil gallery which is permanetly sealed in production, if it were mine i would thoroughly  degrease ,  a slight rough up with 600 wet and dry , then get some jb weld and work it over all suspect areas, this can always be touched in with paint to make the repair less obvious
pete

Ewan 500 K1:
got a photo warthog ?

Warthog1959:
Have not got one to hand. Here the image of the engine on this page shows a coin sized circle above the oil filter and in between the two engine mount holes. This has a slot in it as if for a large flat head screw driver. If like Pete says it is factory sealed, then perhaps his solution is the best.

http://world.honda.com/design/designers-talk/cb1100/

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