I have a 135 Massey Ferguson diesel that acted like it ran out of fuel and quit and won’t start back off starter but will if you pull start it but then it blow oil out of dip stick tube. So we took crank case breather tube off valve pan and it was not stopped up so we tore it on down and the head and piston also the sleeves all look good what else could it be it runs great and sounds good when you pull start it just blows to much oil out of dip stick tube to run it
DJ54
Elite Member
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Sounds like you've got some serious blowby, did you check the head gasket..?? Could be blown between cylinder and oil return ports.
Did you pull the dipstick to see how much oil is in it..?? Injector pump may have put a lot of diesel fuel in the crankcase, and running pushes it out. That much the oil should smell like diesel.
Did you pull the dipstick to see how much oil is in it..?? Injector pump may have put a lot of diesel fuel in the crankcase, and running pushes it out. That much the oil should smell like diesel.
John0829
Veteran Member
There are only two things that will make it blow oil out, to much oil in the crankcase usually caused by the injector pump dumping fuel into it or compression from a blown head gasket, cracked head or worn out rings and sleeves.
Have the head checked by a competent machine shop for cracks or being warped. Look closely at the old head gasket for signs of a blow out. IF all these check out then most likely you have broken rings allowing the compression in passed the pistons. Which I am guessing is the problem since you say the only way to start it is to pull it and to me that equals low compression.
Did you think to take a compression test before tearing it down? That could have told you a LOT.
Have the head checked by a competent machine shop for cracks or being warped. Look closely at the old head gasket for signs of a blow out. IF all these check out then most likely you have broken rings allowing the compression in passed the pistons. Which I am guessing is the problem since you say the only way to start it is to pull it and to me that equals low compression.
Did you think to take a compression test before tearing it down? That could have told you a LOT.
Roadworthy
Elite Member
I don't know the 135 but if the hydraulic pump fails on many tractors it will dump hydraulic fluid into the crankcase. You may not notice a drop in the hydraulic fluid level but you generally have far more hydraulic fluid than engine oil and you will see it on the crankcase dipstick.