SOHC.co.uk Forums > CB500/550
550 F2 started!
Nurse Julie:
Possibly clutch bearing 🤔🤔🤔
Laverdaroo:
Mmm, hadn’t thought of that, bit if a curious one it’s deffo that area of the engine…….
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Oddjob:
Hate to say this Roo but pop the camcover off and check the camshaft journals, I had the same thing many years ago and it was because there was a layer of paint on the journals and that caused a small lack of oil feed.
Laverdaroo:
Ok, I hadn’t thought it was from there but that’s a good shout, I was going to re check the valves tmr and do the tap pits so I might bung my camera in there to see if there’s anything apparent before stripping the top off.
I’ve just done the screwdriver to the ear and tried it several times and it didn’t do it once but I’m going to go over it tmrw morning, I’m just waiting for the methanol to burn out in the burner and I’m in.
Before I assembled the top end, all the journals were fastidiously cleaned and gawped at and I was pretty happy with them, I can see how a layer of paint could be missed though.
I went round every gasket surface and journal on it as there was a bit of over cerekote lurking after getting the cases, barrels and head etc done.
Good call and I might whip the clutch cover off and have a wiggle if the guns are coming out and I have to start looking at cam cover removal with no joy etc…..
Interesting one never the less……
Better to find it now then blow it up on the bench like
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Laverdaroo:
Ok, so had the cam cover off today and everything is as it should be, clean surfaces the lot. I’ve reassembled everything and the Parp is there but intermittently on every fourth prod of the starter
With my ear pressed against the clutch housing I think it’s probably there as the top end was Spock and span and loads of lovely oil.
If this does indeed, come from the clutch thrust bearing, what am I liking for? Is it the basket over shimmed creating a metal squeak when the pressures off the motor?
Advice required while I drop the oil please as this is still my first complete reassemble of one of these and any hint is a good one…….
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