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1975 850cc Mark3 Cylinder head RH4
Major oil leak from between 3rd and 4th fin, front of cylinder head. Constant drip on tickover. Suddenly occurred after winter layup. Had bike from new, covered 33,000 miles. No previous issues with this problem. Any ideas????
I’ve been challenged with…
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Peer through fins and check…
Peer through fins and check to see if oil is sat on the stud nut and washer, if so it is an easy fix.
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I’ve been challenged with oil leaks in the region of the cylinder head/block joint (see my earlier post). Could be the inlet valve cover seeping, the oil can run through the gap in the cylinder head to the fins at the front? I’m about to fit a valve in the breather hose to lower the internal pressure and hopefully eliminate remaining leaks…..