hello, i bought a 2000 js330 track hoe and noticed i was 2 gallons low on oil after 40 hours of use. i found that the air pump between the timing cover and high pressure mechanical fuel pump is blowing engine oil out of its pressure outlet line and it is filling up the air tank with oil. does anybody know if i can remove this air pump from the machine or find a rebuild kit for it so i can keep my engine oil, well... in the motor thank you
just an update, after further diagnosis and replacing exhaust, we found turbocharger was the cause of excessive loss of engine oil
Thanks for the update and it makes more sense.