SOHC.co.uk Forums > CB500/550

Honda CB550K3 oil pressure

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hairygit:
You could try a flushing oil, BUT because some of the oilways are tiny, it may just move the problem around the engine. Try a gauge and new switch, if that doesn't sort the problem, then start thinking about stripping the engine to clean it. Also, did you change the filter when you did the oil change? False economy not to, nice clean oil running through a dirty filter

mike the bike:
I would remove the rocker cover and crank the engine over on the starter with the kill switch off.  Check that oil is getting to the cam feed pipes.

Bryanj:
No cam feed pipes on the 550, if you want to check for oil at the head remove the two end covers and then the brackets they fasten too, oil will come out of the holes if it is getting to the head, which is why there is supposed to be a soft alloy washer between the bracket and the cam cover to stop leaks

matthewmosse:
When I had a hard to get rid of rattle in the top end of my cb550, it turned out after 3000 miles that the new O rings I had used in the rebuild were too thick, one had deformed enough to block an oilway and it dropped a valve, not to mention chewing the cam journal up a bit. Best to check.

Ashdowner:
All good advice but I haven't rebuilt the engine and not sure if anyone else did before me. I'll check for oil at the head, get a new switch, and maybe I'll get pressure gauge to check it. Thanks everyone.

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