SOHC.co.uk Forums > CB500/550

Cam Sprocket to Cam Shaft

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JM550:
Hi guys,

Hoping someone can help me with this one as I surely can't be the only one to have this trouble, unless I'm missing something really obvious.

I've got a very stubborn Cam Sprocket that won't meet with the Cam Shaft correctly.
Any tips or tricks for just getting that extra bit of play out of the Timing chain so I can marry the two up together properly?

I've played around with the Chain adjuster but it just does not want to budge.

Any help appreciated.

Thanks

Oddjob:
Are you 100% sure the camchain tensioner is located in the bottom slot in the crankcase?

Are you sure the cam goes behind the guide and not in front of it?

I've never personally had any problems getting a sprocket on, even with a brand new chain.

McCabe-Thiele (Ted):
Not quite the same but it was a heck of a job to remove my sprocket from the camshaft when I was dismantling my 500. I had undone the tapet adjusters. I had to move the tensioner until it was as free as possible then with the sprocket bolts removed I inserted a pointed tapered tool into one of the bolt holes to enable me to lift it a tad so it wriggled off the boss.

Of course assuming the tensioner blades are fitted correctly but you're pushing against the blade iirc.

Oddjob:
Just hit it sideways Ted. Hit away from the boss on the shaft and it will just fall off. Small hammer or the handle of a screwdriver works.

mickwinf:
I have just done this on my 500 Lazarus. It has a new camchain and i agree sometimes they are a bit tricky. Check the things mentioned, and i found once you get things lined up you may need to lever with a screwdriver and i had to tap it on with a rubber mallet.

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