During work i got a call asking to do a comp. test for my uncle on a little 3 cylinder Kubota engine. I said i would....So i went down and pulled the 3 glow plugs out....Pulled the fuel line off the injection pump. This engine took the same glow plug tester as the duramax did. Added some never seize and went to town on the test... Number one was about 215....I thought to my self. Man thats alittle low for my liking when this thing is Naturally aspirated. I would think its gotta have more compression than that....Well i guested right:rofl:... Cylinder number 2 was 520 And then Cylinder three was 120 I did the hole 5 minute test again Just to be sure. Needless to say i think the engine needs a rebuild....Smptoms were as told to me: It constantly makes like a....well i guess like a ....Fog coming out of the blow by tube all the time....Engine had about 2500 hours on it. And had little actual oil blow by but had alot of steam.....Uncle and cousin said it has most likely sucked a lot of dirt in its day...So im blameing the dirt on the cylinders being scored or worse.....Just thought you guys might like to hear about what i did today