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Oil leak

Twobond

CB750 Member
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Houston
Hello all,

I have a USA ‘79. Rebuilt carbs, put on stock 4 into four pipes. I have an oil leak, not in the standard place. See pictures and tell me what y’all think. And what action I should take. In the picture is baby power.
Walter
 

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The bolt was loose. Tighten with 10mm. Still had oil around it. Should I take off valve cover and tighten head gasket bolts or tighten the bottom bolts
 
I’m going to take some high temp gasket maker and bead around the area. If it does not stop it, it just might slow it down as a temporary fix.
 
Ok found the oil leak, not a bolt but a crack. See picture….so, what ya’ll JB Weld or gasket sealer high temp. What will adhere to aluminum? Walter H-Town.
 

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