Thread: Timing chain assistance please

Hi Marty
Undo the chain tensioner, remove cam sprocket bolts , drop cam sprocket while holding just enough of the chain to stop it dropping, while moving the sprocket in the direction you want to go, reassemble, are you using locking pins?

Hi There,
Yes I'm using locking pins. I have tried what you mention however I can't get the chain to disengage on the two sides enough t turn the cam sprocket or push the chain over the sprocket.

At least what you tell me I don't have to take the sump off. I was toying with disenageing one of the locking pins and moving the (I think the crankshaft) that two teeth and then turn it back to TDC to check the alignment. I don't think turning the crankshaft that much should be that dangerous.

Any comment?

I sat down and thought about my suggestion for a moment, it won't work so I'l have to try moving the chain on the sprocket........

Cheers Marty

So you've removed the sprocket and let it drop down into the timing cover?.

Hi There,
I've had the head off to replace the timing chain guides, the tensioning one had a broken bit. I'm now rebuilding the engine, at the moment the timing chain and sprocket are "resting" between the two guides whilst I figure out how to jump the chain over a couple of teeth to get the sprocket bolt holes to align with the camshaft threads.

I'm going to sleep on it, no point going out and breaking something now. I could fix this quite easily by taking the sump off hwever I want to try and avoid that if I can. I'm sure someone out there has some little trick they know how to do this.

Cheers Marty

If you are able to lift the sprocket and chain onto the cam , then you must be able to rotate the sprocket when its dropped off the cam , they are tighter when everything is new, but shouldn't be that tight. You could remove the Allen key pin on the lhs guide which might help. If there are any little tricks other than that then its probably just to get it right the first time

Hi,
Managed to get my "little pinky"between the head and the cam sprocket, then managed to dislodge the chain enough to slip over to the next link and then rolled the loose link over to the other side of the cam sprocket, did this twice, everything now lines up and the bolts are in................... now off to find the first aid box for a plaster, the inside of that "bung hole"is quite sharp..........

And yes Discorevy getting it right first time is the other option however on this occasion thought I would give myself a bit of a challenge.....

Cheers Marty