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Me again, new problem

Yeah, you are very lucky. I don't think you had much longer till total failure on that chain.
 
Will L. said:
Did you find all the missing parts, or do you need to drop the oil pan?
Click to expand...

Well... Long story short,
Had a fairly bad engine oil leak, couldn't find it, somewhere in the front. Figured it was the pan, dropped it and the front diff. Found the pieces in it, had a small stroke... Cleaned it out, resealed it & bolted it back on. Ironically, the break in the chain was at the 6 o'clock on the crank. Saw it immediately.

That's where I began tearing into the front of my engine. Turns out, I'm sure the leak was from the quarter sized hole in the cover from the chain...
 
So how long do you think you have been running the engine wih the broken chain? Guessing it had to be a while to have had an oil leak bad enough you just dropped the pan trying to find the leak...
 
Been thinking about it. I have never seen a 6.2/6.5 break half the chain. Usually the whole thing pops.
Then pistons bend valves, sometimes breaking off the head and taking out the block and head. Has anyone here ever snapped one side of the chain before in a Diesel and not the entire chain? Really thinking this is 1 in 10 million thing here.


Your self induced good luck of finding it before it destroyed your new heads is well earned by the effort to drop the axle and pull the pan looking to fix a leak instead of just letting it go. I know aggravated to have to do all this, but really - enjoy your victory here. Go ahead and waste 2 dollars on a lottery ticket...
 
Will L. said:
So how long do you think you have been running the engine wih the broken chain? Guessing it had to be a while to have had an oil leak bad enough you just dropped the pan trying to find the leak...
Click to expand...

Will L. said:
Been thinking about it. I have never seen a 6.2/6.5 break half the chain. Usually the whole thing pops.
Then pistons bend valves, sometimes breaking off the head and taking out the block and head. Has anyone here ever snapped one side of the chain before in a Diesel and not the entire chain? Really thinking this is 1 in 10 million thing here.


Your self induced good luck of finding it before it destroyed your new heads is well earned by the effort to drop the axle and pull the pan looking to fix a leak instead of just letting it go. I know aggravated to have to do all this, but really - enjoy your victory here. Go ahead and waste 2 dollars on a lottery ticket...
Click to expand...

I'm guessing it had to have been like that for a while. Could've been weeks or months maybe even years. The way it wore on the cover to me indicates it was loose. Really only wearing on one side, the return side of the chain not the driving side... And it appears that only the inside half of the chain wore on the cover, until it broke. It wore some pretty deep groves in the cover. Maybe 3/8"-1/2 deep. I'm positive this was caused by severely stretched chain. And I'll grab a lottery ticket on the way back from getting the new sprockets.
 
The oil leak was pretty bad, leaking a quart in 250 miles. It's a mess underneath, oil everywhere. Had me pretty concerned
 
Oil level?

Did you change the oil after all this work? Possibility of dropping coolant in the oil from the timing cover, but, even then it should generate something.

Get a mechanical gauge in it. Of course checking the electrical connections and fuses. Blew a fuse, left a wire off, s#it happens and something else died... How did it sound as engines sound different with no oil pressure.Edit: N/M as it has to sound better w/o a chain slapping the cover silly.

You could spin it for 30 seconds at a time on the starter with the turbo line removed and see if it's even pumping oil.
 
WarWagon said:
Oil level?

Did you change the oil after all this work? Possibility of dropping coolant in the oil from the timing cover, but, even then it should generate something.

Get a mechanical gauge in it. Of course checking the electrical connections and fuses. Blew a fuse, left a wire off, s#it happens and something else died... How did it sound as engines sound different with no oil pressure.Edit: N/M as it has to sound better w/o a chain slapping the cover silly.

You could spin it for 30 seconds at a time on the starter with the turbo line removed and see if it's even pumping oil.
Click to expand...

I dropped the pan, thinking the leak was there. Cleaned it right out. Dropped the oil and coolant. Changed them both. Coolant looked a little rusty.

It sounds great, not as loud as before, but I'm sure it will return after I do the TDCO.

I'm going to switch the OPS with a spare, get a manual gauge, change oil filter, check fuses and go over everything under the plenum. Like you said, maybe I forgot/damaged something. Would a pinched oil cooler line cause this?

I cant see how changing the timing set would cause 0 oil pressure.
 
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