1987 Ford F-250 87 F-250 diesel burns LOTS of oil

COSMETAL

MEMBER
1987 FORD F-250
V8
4WD
MANUAL

The truck fires up very easily and quickly and runs very very strong. When I start it I get a big puff of oil smoke then it runs somewhat clean. If I really get on the gas sometimes I just get black diesel smoke, sometimes I get a huge white cloud. The engine doesnt surge or hesitate or do anything out of the ordinary except burn large quantities of oil.
Also today I was putting some of that extremely thick oil that supposedly helps with the oil burning problem and I noticed that lots of air and smoke is being blown out of the crankcase where I would normally put the oil in.
I thought it might be a head gasket but im really not sure anymore. Any thoughts?
Thanks

Monday, October 27th, 2008 AT 8:15 PM

1 Reply

MHPAUTOS

MECHANIC
31,937 POSTS

Hi there,

The excessive black smoke is fuel smoke so I would be getting the injectors serviced, the excessive crank case pressure is due to compression leaking past the rings into the sump, this will also be part of the reason for the oil burning, get a comp test and a leak down test done, as this will give you a good idea as to the condition of the engine.

Mark (mhpautos)

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Monday, October 27th, 2008 AT 8:27 PM