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White smoke

D

dirtman55

Member
Joined
Apr 28, 2009
Messages
21
Location
Upper Michigan
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Road building for log trucks
kevman6 said:
Have a 2013 Cat 950k that is gives off white smoke at higher RPM.and Low fuel pressure light. I'm checking for fuel leaks but suspecting a restriction somewhere. Will be changing filters today. Any other ideas are well appreciated. Slight loss of higher RPM, but runs well with no smoke at idle. Hasn't been run in awhile.
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Just got a 950K 2013 started smoking white smoke turns out lower turbo leaking oil , turns out ther's 200 of these turbo on back order now we wait F--K
 
John C.

John C.

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Jun 11, 2007
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Northwest
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Machinery & Equipment Appraiser
What do you mean by "lower turbo"? Is it leaking externally from the supply or drain connections or do you suspect it leaking internally into the exhaust or air stream?
 
John C.

John C.

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Location
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I went to a Cummins engine school years ago where that question came up. The instructor told us that unless the drain line was plugged, oil wouldn't leak into either side. He said both hot and cold sides were under higher pressure than the crankcase pressure of the engine so it would always gravity drain out of the center section. Basically if you oil leaking into the air or exhaust sides, you had more problems than just a turbo.
 
D

dirtman55

Member
Joined
Apr 28, 2009
Messages
21
Location
Upper Michigan
Occupation
Road building for log trucks
John C. said:
I went to a Cummins engine school years ago where that question came up. The instructor told us that unless the drain line was plugged, oil wouldn't leak into either side. He said both hot and cold sides were under higher pressure than the crankcase pressure of the engine so it would always gravity drain out of the center section. Basically if you oil leaking into the air or exhaust sides, you had more problems than just a turbo.
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The story starts out when previous owner went to trade in cat took a oil sample found coolant in engine oil. Also a plugged crankcase breather, sludge under valve cover, cracked cooler the good part is the parts are under warranty so they are replacing turbo. An engine oil sample was taken waiting for results
 
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