mattyt1984
Senior Member
I purchased power unit knowing it didn't run. I rebuilt injection pump and it fired up but was missing in one cylinder. I removed exhaust manifold and found 1 all exhaust ports had a little suction number 1 much more than the others. I removed head and redid the valves. I reinstalled head and it does the same thing. Watch video below I removed intake push rod and #1 still has suction. I'm thinking has to be camshaft issue or timing but it does not appear that timing cover was ever removed. Any other ideas before I tear it down.