I have searched around and read up on timing chains. I do feel my issue is slightly different and hasn't been addressed. Here goes

With the new chain and tensioner installed and injector removed I manually rotate the flywheel clockwise until the crank timing mark is on 0T. The cam chain mark is just a tad behind. If I make the camshaft mark line up, the the crank is approx 15 degrees past TDC.

I have read that the solution is to bunch up the chain on the IP side and try to skip it over the cam sprocket. I am unable to do this. At this point the chain tensioner is removed when I do this. However, in my attempt to rotate the camshaft only in a clock wise direction the timing marks magically line up right where they are supposed to be.

Is this wrong? I will post pictures if possible, I am had to re-set up my account here. I have been around for a little while. I read GSXR's thread on emission recirc removal and did so, ALDA removal.

the first is TDC. The second picture is the camshaft when the engine is at tdc.

Again, when I wrench the camshaft (minus the chain tensioner) clockwise to bunch up the chain and "skip" a tooth on the cam sprocket the timing marks seem to line up.

When I manually turn the motor with the tensioner the cam shaft is off timing.

I'm a little nervous. Thanks

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It might be a good idea to post what Engine you are working on.

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84 300D, 82 Volvo 244Gl Diesel

I'm not so sure that the timing marker that is utilized to reference with degree marks is placed correctly. May give you a false reading.

When cleaning in that area some time ago I found that the bolt that holds it was loose and I inadvertanly moved the marker device. It actually has a slot in it where it can slide on the fastner bolt and move some ten degrees.

Just keep that in mind!

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1986 300SDL 440,xxx

Looks like an OM601 possibly.....a very neglected one based on the oil slime/varnish on that cam lobe. Looks to not have been run in a while!

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