A rare problem with my engine?

Question

ok i have a 1967 Blazer with a 350. Now I have oil going into my exhaust. its only on the driver side. My exhaust has to go ever a cross member, so the oil sits in the pipe and just burns. what is causing the oil to run through my exhaust

alright i did see that my block was wet on the driver side, the same side with the leak. no it does have 120,00 orig. miles on it and still running(ex. the oil problem) I think its either a head gasket or the guide.

Answer 1

if you are talking about into the exhaust pipe itself, then you have bad valve guide seals on the exhaust valves, and that is pretty common. if you are talking about oil coating the outside of the exhaust pipe, then you have a bad valve cover gasket, also a pretty common problem.

Answer 2

The block is wet with oil ?? If that is so you have a bad valve cover gasket. How do you know oil is sitting IN the pipe, can you see inside the pipe ? Or is the oil running down the OUTSIDE of the pipe. A blown head gasket or stuck valve will not allow oil in the exhaust, only into the cylinder. This condition would also cause a bad miss. A cracked head would cause water to leak not oil. Thermatic articulators were used on '65 models not '67. Valve guides leak a small amount of oil and only into the cylinder with the valve open. A piston ring would burn oil when engine is running. Intake valve seals would leak to combustion chamber not exhaust. Plugged drain back holes would leak from valve covers.

Answer 3

You either have a blown head gasket on that side or a stuck valve that is letting the oil drip into the cylinder.

Answer 4

Worn intake valve seals worn piston rings and clogged up cyl head oil drain back holes. Congrat's your truck made it 40 years.

Answer 5

Well, you could have a bad piston ring and/or a bad exhaust valve on one of the pistons.

Answer 6

You have a cracked head and a broken thermatic articulator.