Smokey engine

[hush210]

Iv got a 78" 350 that smokes out of the driver side bank. (truck has true duels) Any idiea What its from? Could be alot of things I know. Is there a way to know if its a vale leak or rings?

[chevysnbuicks]

Lets see... on my 88 it was the head gasket, but I don't know if it's the same with the '78s.

[trickedout420]

what color smoke that will help alot

white equals coolant
blue equals oil
black equals too much fuel

[hush210]

:White smoke, only mhen the motor warms up. But it smells like burnt oil

[GMCdan15]

mines doing the same thing but i have an 86

[bored&stroked]

Do a compression test first. Also check the plugs, they will show if its oil.

[retired wrench]

Pull the valve cover and see if the drain holes are plugged. RW

[JAB]

I have seen transmission vacuum modulators cause oil smoke although you said it is only one bank.

[GreaseDog]

see sig...

[hush210]

Originally Posted by GreaseDog

see sig...

Nice, Iv often wondered what a leak down gauge was for. So what did all thouse parts cost? About thirty five bucks or so?

[GreaseDog]

i didnt even keep track. i know i paid like $20 for the regulator, and the gauge was like $17. had i used black pipe, or galvanized, it would've neen significantly cheaper, but it wouldnt come out near as clean looking.

[hush210]

You run the test at opperaiting temp just like a compersion test?

[GreaseDog]

i would use it at operating temp if possible, as the pistons and rings will expand and have an effect on the seal of the bore.