Hey guys! I am brand new to this forum and pretty much brand new to dealing with the om617. I am in the middle of doing a swap into a 92 Toyota Fourrunner, but ran into a huge problem. I had the swap to the point where I was going to start it up, but come to find out that my motor does not turn at all. I bought it running out of a 84 300d, and did a head gasket change and a timing chain replacement. So far I have verified that my timing chain is not bound up, oil pump is not bound up, and I did remove my head again, thinking at first that my timing may have gotten off and I bent a valve or something. I am at a total loss right now, so im not sure if you guys have ever ran across this but if you have any input that would be awesome. Thanks

How you tryna turn it, and did it turn when you had the head off?

If yes for #2, then not seized. Maybe pull the cam only and see if it turns then.

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CC: NSA

All things are burning, know this and be released.

82 Benz 240 D, Kuan Yin
12 Ford Escape 4wd

You're four times

It's hard to

more likely to

concentrate on

have an accident

two things

when you're on

at the same time.

a cell phone.

www.kiva.org It's not like there's anything wrong with feeling good, is there?

What transmission is the engine attached to? Could it be an improper fit jamming the flex plate or flywheel?

Sixto
83 300SD
98 E320 wagon

I tried to turn it with the head off too no luck. I got an adapter plate for it from doomsday diesel and had the factory r150f transmission bolted to it.

Darren0412, remove the transmission then try to turn the engine CW (when facing the front of the engine). If it turns OK, then you know the transmission is causing the problem and proceed accordingly.

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Fred Hoelzle

Thanks I will try that.

So I just removed my transmission, everything seems to have the correct clearances and nothing is rubbing in the bell housing at all. Motor still will not turn! Do you guys have any ideas?

I am skeptical it was running at this point. Just for a reality check, how are you trying to rotate it? With a breaker bar and socket on the crank pulley nut?

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1998 C230 330,000 miles (currently dead of second failed EIS, yours will fail too, turning you into the dealer's personal human cash machine)
1988 F150 144,000 miles (leaks all the colors of the rainbow)
Previous stars: 1981 Brava 210,000 miles, 1978 128 150,000 miles, 1977 B200 Van 175,000 miles, 1972 Vega (great, if rusty, car), 1972 Celica, 1986.5 Supra

Smething not matching up in the engine to the gear box ..

Did you lock the crank when you did the chain?

On a 240D, behind the injection pump timing chain gear, there is a spacer/flat washer style on the shaft that drives that gear. If that spacer was removed and the spacer left out that shaft will not turn. I'm guessing the 300D uses the same spacer.

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"Rudeness is a weak man's imitation of strength" - Eric Hoffer

So I just took the transmission off and now I got it to turn a tiny amount about and inch and it stops. Would this be a kinked timing chain?

Could be a bunched up chain but I doubt you would have been able to link it together if it was bunched up much. You may be able to drop the lower oil pan and see it bound up. Removing the upper pan would allow you to see a little more but it is a task.

You did see this motor run yourself correct?

Was replacing the chain what started the unable to turn situation?


Good luck!!!

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"Rudeness is a weak man's imitation of strength" - Eric Hoffer

Yeah I did see it run, i drove it to into my garage. When I did this pull off the lower oil pan I found some small bearings about 1/8". Got myself into a huge mess here

Just to condense some info here:

- You personally saw this engine run

- You took it apart

- installed an adapter plate

- Now it does not turn with a breaker bar with the trans off

Things I would look at are clearances between the flywheel and the block including any through bolts and stuff in the oil pan. The chain is not going to bind up if its around the cam or pulled taught. Even if the chain was bound up you would be able to turn in counter clockwise a little and unbind it.