good luck, i hope the best for you, maby it will clear up once it warms up.

 

See post #2 of this thread.

 

Started it up this morning again and found that I must have had a little air in the lines yet. once it bled off the thing ran great... I still have a little smoke, out both banks, but it's very light and I think only noticeable because it's in my shop running. No bubbles or compression in the cooling system either.

after it ran about 20 minutes while I did some chores, I cam back and did a cyl cutout test on every hole to make sure there wasn't anything missing. every hole was firing.

I did the test with the advance lever on the pump to see if it was too advanced or not, and when I push the plunger in the engine gets a little more of an aggressive rattle to it. maybe it's advanced too far?

The throttle response of these engines is amazing to me.

 

What about the cracked block Racer55 is referring to?

 

Maybe I am seeing things?
Does that look like a crack to you?

 

I think it's a crack!

 

Naw, those were scratch marks.

If the block was cracked I'd still have compression in my cooling system.


I'm gonna take it for a 50 mile trip tomorrow... we'll know by the end of that weather or not this thing will hold it's nuts and bolts.

 

Give this a read:
6.5 blowing coolant everywhere (Total Rebuild) - Diesel Place : Chevrolet and GMC Diesel Truck Forums

Sometimes it has to have the right conditions for the compression to get past the crack.

 

ran it 50 miles yesterday. no heating, no smoking, runs strong. Got it home took radiator cap off and had only normal hot cooling system pressure. reserve tank and radiator were still full as well. started it up with the cap off and have no bubbles..

Also noticed that my blowby is much less than it was 50 miles ago. right after I put it together I had a fair amount of it. now it's not much to speak of. the two cylinders I honed must have broke in...

Only thing I'm really noticing now is on cold startup it takes longer for the passenger side bank to "clean up" and get hitting on all cylinders... you can see it in the exhaust that it stays white longer than the drivers side bank. But, that too was before I took it for a drive. it might be better now.

 

Good deal. The passenger side might need some more run time to seat in. At least your running and not pressurizing the cooling system.


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