02 CBR600F Cam Chain Tensioner

Lenn Brennan

Has anyone ever fitted one of these?

Cheers

Lenn

Richard tea

I have not personally but I remember watching a few youtube videos about cam chains a while back. Anything specific you wanted to know?

Lenn Brennan

Hi Richard,

I was just wondering if you have to set the engine to TDC on cylinder 1 before doing the tensioner replacement.

I have heard different opinions on the matter

Cheers

Wossack

differing opinions on which cylinder, or setting TDC at all?

if you dont set it at all, theres a danger that valve spring return pressure on the cam lobes can make the cam turn. Potentially making the cam chain hop a tooth once the tensioner is removed. Also, if you've not set TDC, you mightnt immediately spot the resulting misalignment - as there are usually alignment marks on the crankcase/camgears specific to TDC

not saying it cant be done at all - just do it the safest and most controlled way possible whichever you go with, as damage in there gets very costly, pretty quickly

Lenn Brennan

Hi Wossack,

Opinions on setting TDC at all, Some say you have to, some say you don't have to.

Cheers for the input

Wossack

I dont know the specifics for the cbr, but there might be alright.

Depending on the access, you might be able to tension the chain with a ziptie, fitted so as to squeeze the two long chain lengths together - if you follow. I think I did that for my 675

Or access with the actual cam cover removed (so from above), you can often wedge the chain guide with a piece of wood

You're just trying to take up any slack that would be introduced once the tensioner is taken out of the equation.

Lenn Brennan

I was really just hoping I could do it without taking the cam cover off but it's just not worth the risk, I've got a Haynes manual so I'm just gonna follow that, I'm a qualified car mechanic so I should be fine!

Cheers for the info!

scudster

I changed mine a year or 2 ago and didn't set the TDC. No need to remove the cam cover either. Didn't have any issues. I suppose what you don't want to do is turn over the engine with the tensioner removed. The biggest problem I had was access to one of the bolts.

Lenn Brennan

Yeah they're awkward to get to alright, the Haynes manual says to set the timing so I'm just gonna follow that.

It's a lot to risk for the sake of half an hour of work

Richard tea

Lenn Brennan wrote: »

Yeah they're awkward to get to alright, the Haynes manual says to set the timing so I'm just gonna follow that.

It's a lot to risk for the sake of half an hour of work

Can you post a link to the haynes manual

Lenn Brennan

It's a hard copy that I bought, I think you can download them too

Richard tea

Lenn Brennan wrote: »

It's a hard copy that I bought, I think you can download them too

Thanks Lenn. There are a few different haynes manuals. I was just wondering which is the best for bike maintenance

Lenn Brennan

Richard tea wrote: »

Thanks Lenn. There are a few different haynes manuals. I was just wondering which is the best for bike maintenance

You buy them specific to your bike, halfords have a huge range of them

Lenn Brennan

I replaced the tensioner yesterday, fairly easy job, good bit of stripping to get to it.

The engine is nice and quiet again, I would advise anyone replacing theirs to take the time to do it right. Set up the timing before removing the old tensioner.

Those valve springs are strong and could easily make the chain jump a tooth or two if the engine is in the wrong position