Thread: timing chain

Can’t help with the petrol but I’ve done this on the M57 TD6 and the Chinesium timing tool worked fine.

My question would be - is it supposed to be square? I wouldn’t have thought they’d make them that far out. Hopefully someone has one for you to compare it with.

yes i agree but i just thought it might be worthwhile asking the question

I have the timing covers off
The cams are all locked in place with their respective timing chains.
I fitted the dummy timing chain tensioner, the timing chain is now reasonably tight
I offered up the vanos timing brackets and they fitted in place, on problem
I offered up the camshaft locks
The left side, I think, would fit if the camshaft locks were square, but that might be because of ware in the top timing chain
The right side, the inlet camshaft lock fits nice and I think normal considering the ware in the timing chain and guides
The exhaust camshaft lock will not fit and is I believe at least a link out,
or is it because the camshaft lock is not square
these two camshafts are locked together with a chain, the chain is tight, how can they be that far out
I went through this procedure to try and convince myself that the cam locks were right, now I feel they are wrong

Hmmm, interesting - Do you know anyone at a dealer at all who you could talk into letting you look at a factory timing tool? Might be apparent pretty quick if it is the timing tool that is wrong - which it does sound like it is if it’s that far out.

Post the pic on fullfatrr.com

As an aside, Scouse and I pulled the lower sump cover off mine today when doing an oil change. The reason was to check for fragments of timing chain guide in the sump. There were none.

Do check the thread hole for your sump drain plug. Mine had a damaged thread. The cover will have to come off again so I can get it Helicoiled.

I'd suggest you get yours done while the cover is off.

Contacted the local rover people today, this is the tool they would supply. part no DA1116
As can be seen, a straight edge could be placed across the flats on the cams
i cant workout what some of the parts doBMW timing tool.jpg