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Old 06-09-2013, 02:42 AM
drayday55 drayday55 is offline
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Join Date: Apr 2012
Location: San Diego CA
Posts: 19
timing confusion

I pulled head off om617 to machine.

During the time at machine shop I had turned turned the motor over many times.
I did not take off the injection pump or the bolt that is suppose to keep the chain from jumping.

A couple times I didn't keep the chain tight when turning and the chain bound up somewhere in the block but after rotating backward and forward all was good or so I thought.

Got the cylinder head back.

Putting things back together and the paint marks I made on chain and cam sprocket were off by 5 teeth.

I moved the crank to 0 and the timing mark on the cam tower will not line up even when I moved the 5 teeth over on the cam sprocket.

I bought an offset woodruff key but its not doing the job.
Plus I don't think the pump is timed anymore.

Is there a sure fire way to remove the entire chain without taking the pump off?
Also I milled the head but it was just to clean it up and was not warped, so I don't think it could have contributed.
Also the before I took it apart the cam mark was exactly lined up.

The engine is on a stand.
After reading the on-line FSM I don't think I have the skill to mess with the timing mechanism behind the vacuum pump.

I can time a gas motor no problem.
Maybe I'm just scared because I never worked on a diesel before this thing.
I hate to buy more parts for this thing as the block has scoring in the cylinders.
My plan is to get this thing put together enough to do s compression test, if its good I'll slap in new chain and new head bolts.

The donor car ran fine and did not smoke, but it did have blow-by that went away when revved.
Found out previous owner ran fryer grease in it.

If this block turns out to be no good I may find a running donor so I can just pull, clean and install it in my project.
Ill sell this ported and rebuilt head to recoup some scratch.

.

Last edited by whunter; 06-10-2013 at 02:24 AM. Reason: spelling, readability
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