So I had some spare cycles to mess with these 802's some more. I buttoned up the one with the blown piston for a later look, and moved on to 802 #4.
This is one of the original 3 that had that really bad rust inside the cylinder walls. I cleaned up the carbon from the pistons and carefully cleaned up the cylinder walls the best I could. I also removed each lifter, one at a time, and disassembled to clean out the old oil and remove all rust deposits. I soaked both injector pumps in diesel for a couple of days and verified that they moved freely. I also carefully cleaned out the lifter and injector bores, and verified that the cam surfaces were nice and smooth. I used assembly lube on all surfaces as I put everything back together.
http://www.cstone.net/~dk/MEP802unit4-01.JPG
I put this nice rebuilt head on it:
http://www.cstone.net/~dk/MEP802unit4-02.JPG
And added brand new injectors:
http://www.cstone.net/~dk/MEP802unit4-03.JPG
Completed assembling the set, new oil, fuel and air filters. Bleed the fuel and coolant and was ready to attempt first start:
http://www.cstone.net/~dk/MEP802unit4-06.JPG
But, it wont't start. Here's a video of me cranking it:
https://youtu.be/C3gxGF2u1r0
I wonder if the slightly pitted cylinder walls are causing it to not built compression, or do I have a fuel delivery issue? When I bled the fuel line, I was getting plenty of fuel at the high pressure lines at the injectors, but I suppose there could still be some air in the lines?
The smoke you see coming out the muffler does not smell like diesel, so I suspect it is just oil left from cleaning up the bores? The pre-heater glow plugs are both working at the intake manifold gets very hot to the touch after about 10 seconds of pre-heating.
Bummed at the prospect of tearing it all back down and having the block hot tanked and do the whole cylinder hone etc, to get the needed compression as I'm very skeptical that's the issue.
What do you guys think?