SOHC.co.uk Forums > CB350/400
400/4 engine noise
Rirons:
I rebuilt the engine last year new bearing etc, on the left hand side ( when sat on it) there is a ticking noise I thought it was tappit clearance so reset them several times without impact has anyone got some suggestions what to look for during these dark winter months. I am thinking a bent valve or worn guide bush ?
Thanks
mike the bike:
I had the same tappetty noise not long after a rebuild. After taking the rocker cover off to investigate, it turned out to be the tacho gearing on the camshaft was cracked. The cam that's in now has worn lobes but it's quieter. If anyone knows someone who can repair the cracked gear on the cam, please let me know.
Bryanj:
As slight blow from the exhaust to head gasket sounds just like a loose tappet
Rirons:
The noise is the at the opposite side to thetacho gear, I work for a gear company and I can't think how to rework the cam with the integral gear
I think it's head off and check the flatness etc, something to do in winter
Trigger:
Have you removed all the tappets and checked that none are chipped ? Also check oil feed to that side of the head, had a twin in once that had tappet noise on the side stand but, it was fine on the centre stand.
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