Help identifying Cummins

@W923, @OLDSKOOLERnWV

 

Well first off… look on the left side of the block just above the oil pan gasket, is the words BIG CAM casted in the block, be right in front of the starter.

2nd, should be a tag on top of the fuel pump, will have your fuel calibration code on it. A good pump shop can use those numbers to tell you what horsepower it is calibrated for…..

 

Seen that before…. Good possibility a rod or main bearing is trying to lock up. Freind called few weeks ago wanted me to come look at a Cummins in an old Autocar dumptruck, engine would crank but slow like the batteries were weak.

Has his mechanic get me a 3/4” rachet and 1 5/16” socket, I’m 250 lbs and couldn’t budge the engine. They found a rod bearing trying to gauled to the crankshaft….

 

The engine in that truck had lots of diesel fuel in the oilpan….

 

Well… if you’re getting antifreeze on top the piston, at some point you’re going to end up with hydrostatic lock, and at that point you’re going to bend a connecting rod most likely.

Had antifreeze in my oil a while back, was fortunate enough to get it home about 60 miles away. Found #3 liner Oring had failed letting the antifreeze drop straight in the oilpan.

Should be able to pull the injectors and look on top the pistons for evidence of antifreeze while doing a pressure test on the cooling system…..