SOHC.co.uk Forums > CB500/550
Cam chain tensioner
Murf:
Hi all and thanks for your replys, it is a 550K1, someone had done a top end overhaul before I got the bike, what a mess, the incorrectly fitted cam tensioner is just one of many cock ups which I am sorting out.
My question was about seeing what sort of new cam tensioners people had used and who the supplier were. David Silver does have them at about £170 inc vat, it does say they are from a good Japanese manufacturer, so I will probably go with that.
My intention is to do a good job and end up with a nice reliable bike I can use. I know it’s not going to be cheap.
DavidCumbria your thoughts about wishing you had fitted a full replacement are interesting and I think that is what I will do seeing as how the original has been damaged. I will have a search for suppliers.
Bryanj:
The primary chain problem is less on the 550 than 500, the crankcases are a different casting, primarily for the gearbox but i believe the main oil gallery in the lower case is slightly farther away from the chain.
The 500 frequently has deep gouge marks in the gallery where the worn chain eats into it and there are stories of actually wearing through, though personaly not seen one that bad.
The 550 still gets marked but not as bad, again in the ones i have seen.
The wear is bad enough and the bottom end normaly so reliable that if you split the cases you change the primary chain, especialy now we know a kawasaki one is the same at half the price
AshimotoK0:
Very easy to damage the end on the tensioner .. I thought I had damaged mine when I wrongly assembled mine last year but it turned out OK in the end. At the time Ken (Oddjob) who was on here had six spares ... pretty sure he must still have at least one.
deltarider:
Maybe it has been asked before. About tensioning the camchain, does it make a difference if the engine is warm or cold?
Could a somewhat increased blueing of the headers indicate it's time to tension the camchain?
Bryanj:
No and No, blueing is probably single skinned aftermarket headers
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