New truck big problem

[Highridge]

Hi folks
I just bought a 94 F350 factory turbo. I drove it home the other day, about a 2 hour drive, and other than an exhaust leak, it seemed to run fine. I noticed the oil level was a little low so I topped it off that night. Well today I was pulling my trailer and smoke starts coming out of the engine compartment so I pulled over and let it clear out. I also noticed that oil is leaking down the back of the engine near the started(rear main seal?) Any ideas on what could have caused this?

Thanks

 

[Exekiel69]

Yes it could be the rear main seal but You also have the turbo feed and drain on the back of the engine so it could be the rubber grommet that hold the turbo drain in place. Have You checked if it isn't oil and it is fuel.

 

[Highridge]

It's deffinetly oil. Its leaving a couple quarter size oil spots everytime I park it.

 

[towcat]

suggestion.....
get up into the engine compartment and take a look down in the valley under the intake manifold.
the highest point for the oil leak is there and it's a bear trying to pinpoint the source but it's critical to find.
that's where you'll find all the sources EZ69 mentioned.
good luck and report back.

 

[reklund]

Check the oil level only with the engine HOT. With the volume of oil in these engines, it'll expand a LOT when hot and cause an overfilled situation. Overfilling can result in puking out of the seals when it otherwise wouldn't.

Ideally, the oil level will be about 1/2 between the low and full marks when cold, and 3/4 to right on the full mark when HOT.

Just a quick idea about keeping things simple. Overfilling an engine with oil can be almost as harmful as underfilling it...

Ryan

 

[Highridge]

Thanks for the replies guys,
I just checked it out with a friend and it looks like the passenger valve cover gasket may be leaking. I think this may have caused the smoke because it was dripping on the crossover pipe and possibly where th exhaust leak is but thats a job for another day.

 

[dieselrunner]

same this happend to myself last year, with leaking valve cover gaskets.
the passenger side is more difficult then the drivers only since everything it tighter, had to remove the fuel filter, move oil dipstick, and still was really tight.

also i thought i had an oil leak when i noticed oil spot under the truck when parked but it was fuel leaking down the rear of the engine and washing the oil stuck to the engine off with it, just looked like black oil. and that was the return lines.

 

[RLDSL]

that area above the starter is also where the dipstick tube enters the block. if you wiggle around in ther with a mirror and a flashlight you will be able to see if that is the culprit. if so, you can clean around it and seal it off with silicone.

 

[Greenie]

I had the same leak location - it ended up being the nipple between the oil pressure sending switch and the head.

 

[Highridge]

Hey guys,
looks like the y collector from the manifolds to the turbo is cracked which explains the exhaust leak and the sluggish acceleration. Anyone know where to find one of these and how much they usualy go for?

Thanks