Hit a Snag

[Cincinnati Guy]

I got the motor all the freaking together and now when you turn it over it will only turn about 1/4 way either direction. I Have taken out glow plugs, injectors, took of oil pump, manifolds, injector pump, fuel pump, and it still will not turn over.

I have had the front, fear seal replaced, have not had heads off, I have taken the valve covers off to look for obstruction..

I am thinking a wrong bolt somewhere maybe or something got dropped somewhere, I dont want to take the heads off but I may have to....

Would a missing crush washer cause this?

Anyone have tips for me.

 

[GenLightening]

Are the pushrods and rockers in place? Did you have the timing gears apart? Sounds like the crank and cam aren't in time and a piston is touching a valve. Oh, are the water pump bolts all in the correct positions? Seem to recall if one of the longer ones is in the wrong place it can hit the timing gears.

 

[Cincinnati Guy]

I have the whole front of the motor off. We never removed the camgear, or crankgear. Before I replaced some things here and there it would turn over, but now its not. I am stumped along with the ones helping me.

 

[GenLightening]

Is it on a stand or in the truck? If on a stand, make sure the flywheel isn't hitting the stand.

 

[Cincinnati Guy]

Flywheel is off it. Its just confusing cause it once turned over until we started putting it back together. I hope I dont need to take the heads off.

 

[GenLightening]

Pushrods and rockers still in place? If so, loosen them and see if it spins.

 

[Cincinnati Guy]

will do tomorrow

 

[GenLightening]

Let us know!

 

[starmilt]

The top two water pump bolts are the ones that can contact the gear.

 

[dyoung14]

just think of what all you have changed, then start pulling it off one peice at a time, after each piece, try turning the engine, sooner or later you will find out what you done wrong

 

[87crewdually]

My money is on the cumbustion cup dropped out of one of the heads and is the cylinder. Seems like you checked everything else. I can see this happening because I know mine were loose.

 

[The Warden]

My money is on the cumbustion cup dropped out of one of the heads and is the cylinder. Seems like you checked everything else. I can see this happening because I know mine were loose.

Unless it fell out while he was in the process of mounting the cylinder heads, I don't think that's possible. I don't have a better picture, unfortunately, but if you look at this pic:

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the precombustion chambers overlap the edge of the cylinder to the point where about 1/2 of the chamber's held in place by the block surface. You can see a corresponding spot on the head gasket...I don't think it's physically possible for the precup to fall into the cylinder unless it's in pieces.

My guess is the water pump bolts...

 

[Cincinnati Guy]

I never have had the heads off though, and also the water pump is already off and there are no bolts in it.

 

[The Warden]

The timing cover's on, right? Can you take a couple of pictures of it and post on here?

 

[RLDSL]

How long was it on the stand? WEre there any openings left large enough for a small rodent to climb in there?