SOHC.co.uk Forums > CB500/550

Cam chain tensioner

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Murf:
Hi
I am considering just fitting a new cam tensioner pad into the old tensioner to save a bit of money. CMSNL have oem one for around £90  and none oem for around £40, cheapest complete tensioner is around £180 at DS,  any thoughts on what you would go for?

It looks like I also need  to change my primary chain as well, so interested to know about the Kawasaki chain that is the same and half the price that is mentioned in the thread. Primary chains at DS are £69 +vat so about £81.80, CMSNL are more expensive.
Thanks

Bryanj:
The search function is your friend but i was board so Kawasaki 92057-1011

Bryanj:
Fowlers

deltarider:

--- Quote from: Bryanj on August 06, 2024, 08:18:46 PM ---No and No, blueing is probably single skinned aftermarket headers

--- End quote ---
Thanks, Bryan. Exhausts are OEM. I never quite understood what causes blueing. A since long deceased racer once told me that when the headers blue, one way or the other, your firing is late. I'd like to learn more on this.

K2-K6:

--- Quote from: deltarider on August 06, 2024, 03:29:01 PM ---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?

--- End quote ---

It shouldn't make any difference that's measurable in the design used.

The "pull" side of chain going from camshaft to crankshaft has the dimension set from design (not altererd by adjustment) to facilitate correct timing always. The non pulling side feeding up,to camshaft from crankshaft, just has to be controlled by the provision of adjustment tomstop it flapping.

Pedantic and technical, chains aren't generally "tensioned" as the loading if they are will advance wear on the bearings etc used to support them. The spring in the adjustment mech is specified to avoid tightening too much, then to give a problem.  This is the same for cam belt design too.

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