SOHC.co.uk Forums > CB500/550

Camshaft lubrication

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oldboy:
Having discovered a slight oil leak between the fins on my 500, I've taken the cam cover off to replace the 6 rubber sealing grommets as I suspect they are the culprits. Looking at cylinders 1&4 the cams run in an oil bath without drain holes, however cylinders 2&3 the oil bath has drain hole, so until the oil pressure comes up they are effectively running almost dry for a few seconds, until the oil bath fills up. I vaguely remember seeing a photo of two cylinder heads some time ago, one with drain holes and the other without. Would it be advisable/ beneficial  to tap a thread in the drain holes and put a screw in blocking the drain hole so the oil bath fills as cylinders 1&4 and letting the oil drain back down through the cam chain tunnel. ???     

Nurse Julie:
No. The early heads were designed that way and do their job perfectly.

Bryanj:
As long as the correct grade and type of oil is used, changed at the proper intervals the head will be fine as Honda designed it, only ever seen wear on abused motors

oldboy:
Thanks peeps, just thinking!!!!!!!

Bryanj:
As my wife would say "Stop that at once, its dangerous"

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