Okay, so I did the Hughes plenum fix about 7 months ago and at the same time replaced ALL seals and gaskets from the heads up. But it still smoked so about two months ago I replaced the valve seals. That seems to have solved the smoking.

My questions are below:

1. If I had bad valve seals would that cause oil to be inside the intake?

2. I have oil inside the kegger but it was after the Hughes fix so it has to be the valve seals, correct?

3. Do I NEED to clean up the oil or can I leave it since it doesn't smoke anymore?

 

Not seals, it may be coming from the PCV valve. Get one from the dealer.

 

Did that already. But I suppose I could try getting another one since they are cheap.

 

I'm pretty set on doing the CTD conversion so I don't know if I feel like pulling the intake off again to check. It's not smoking anymore so I wonder if I should just say "screw it" and leave it be.

 

How much oil do you go thru between changes?

 

The intake as in air cleaner assembly? Pull it off and the TB and check that the gasket isn't blown again.

 

HeyYou,

I really haven't driven it that much due to being out of town and having the oil consumption. I just changed it after I reassembled it after the valve seals. It was previously using two quarts for about 400-500 miles. Maybe even more.

Zman,

I think I may just pull the throttle body and check it. Then if it's leaking, I suppose I can take a few hours and a 12 pack and pull everything off again. If it's leaking then it is likely operator error rather than poor design by Hughes.

 

7 months is sure long enough to know if you did something wrong. It shouldn't be leaking if everything was done right.

 

Have you done a leak down test or a comp test to see what shape the motor is in? It might not be the gasket it could be blow-by past the rings etc. Best is to see were the motor stands before tearing it apart.

 

Merc,

I have not done those tests, however, it no longer smokes after fixing the valve seals. Would those tests be relevant to why there's still oil in the kegger? I haven't performed those before, that's why I ask.

Brandon