2-155.engine

[Grhinpa]

I have 2 tractors, a white 2-135 and a 2-155. Owned the 135 since new. The 155 bought a year ago. The 135 we put a military short block in a couple years ago, timed it with the marks on the gears but runs weak. The 155 when we bought it had lots more power. The other day we took the cover off the injection gear and from what we can tell the injection pump is timed with the crank but the cam is set back two teeth. Anyone know what this is about? If I omitted a detail, please ask. The 155 engine has been worked on at one point.

 

[Dieseltech]

It doesnt matter where the pump drive gear is, but is the PUMP MARK alignment with crank mark correct?

 

[Grhinpa]

But the cam gear is not in time with the crank gear. The cam gear is 2 teeth delayed

 

[Gary Mitchell]

What I'm reading here is that the pump timing is set correctly gear-wise but the cam timing if off 2 teeth. If THAT is the case, I'd expect it to run poorly if at all. gm