Engine Uses Oil

[Xulfiqar]

My engine is giving A spec compression (coz its newly built) with new pistons, valves, crank job and new carb, but its using oil, it only smokes blue when I gas it from idle - otherwise its sweet like new - its only done abt 7000 miles since the built.

When I drive hard - it doesnt smoke at all - even at 5500 rpm it wont smoke.. - I got clean oil dripping from the tailpipe, but the plugs are showing a nice extremely light tan colour with no deposits.

I need some help - this engine is going through oil faster than I go through gears.

[Justin86]

So how did the compression check turn out. The only way I can think of unburnt oil comeing out the tail pipe is from leaking exhaust valve. That way the oil in the valve cover would able to get into the exhaust.

[Vinny]

I'd take it back to where you had it rebuilt for a start. How in the world do you get oil comming out of a tailpipe?????? And CLEAN oil at that. Shouldn't it burn off from the heat of the exhaust gasses or it wouldn't it burn during the compustion process????????

[Justin86]

That is what I can figure out is it burn it sometime but not allways. I would take it back and give them hell.

[k-roy]

Since there is so much oil I am thinking it may be a bad head gasket (check for oil in the radiator) or bad valve stem seals in the head.

[BMS]

Originally posted by kroy
Since there is so much oil I am thinking it may be a bad head gasket (check for oil in the radiator) or bad valve stem seals in the head.


If it were a bad head gasket it should steam and use coolant, not oil. And I don't see how the head gasket has anything to do with oil in the exhaust anyway.