to much blowby

well another trip and still pushed 2 gal of oil out in 600 miles only 2800 miles on rebuild. i know i dont have a bad piston ring because its not burning oil i know the rings need to seat in but 2 gal in 600 miles i deadheaded back home to get this load 1030 miles empty didnt push out a drop. im going to run one more week and see what happens. could a valve seat be out of wack or a valve seal bad? i cant figure it out anyone got an idea?

 

yea but #### 2 gal. every 600 miles at about $10.00 a gal that will get expensive real quick. yea it does run great best its ran in 3 yrs. i am going to do a cylinder pressher test when i get home to see if there is a difference in the cylinders. this is the 3rd head when cat overhauled it 3 yrs ago. i am not impressed with cats reman program at all.

 

i forgot i hooked up a catchcan to catch the oil doesnt look pretty but it works

 

no i didnt check the ring gap i did put the rings in rightside up they do have a mark showing which side is up.

 

i didnt even think about that i will check that when i get home with 1300000 miles on it that could be it this oil blowby is the same amount as it was before i overhauled it are they behind that plate where the fuel filter base mounts?

 

found my problem! i am creating so much more turbo boost it was increasing crankcase presure causing a vacum out the breather tube and sucking out the oil. i put a second breather tube on draged my load down the road 500 miles and not a single drop of oil came out. with 2 breathers on the motor it cant cause a vacum.