for 30 minutes. When I got the 7012 back in June it ran good for about 15 minutes then blew a head gasket. It was supposed to have new rings in it but I think they forgot to torque the head. Could have used a nut driver to remove the head bolts. I ended up putting 2 new gaskets as I bent one trying to get out of the package, Then when I ran it it would blow the dipstick out like a rocket being launched. Breather was assembled wrong so not letting pressure out. I ended up pulling the piston and found ring ends were very close so letting a lot blow by them. Also the side of piston next to valves was scored bad enough I could hardly move the rings. Cleaned the groves out so they were free, honed most of the score mark out of the cylinder and rotated the piston on the rod. Don't have much blow by now but after working about 30 to 45 minutes it starts to labor very hard and then dies. It will turn over easy but won't start for about 15 minutes. The hood gets so hot you can't put your hand on it. Possable getting hot and vapor locking ???? or do I have another problem?
The person that put rings in is supposed to be a diesel mechanic.
Edited by SimplyRad, September 25, 2016 - 02:28 PM.