smoke in 3rd....alot

[Steve Wood]

Don't think so.  Plug the line and find out.  Need to find out if the car runs differently in third gear anyway

[Scoobum]

A PL log of a 3rd gear pull would be nice about now.

[Steve Wood]

Probably way rich with low boost. . Still wondering how a blown egr valve line would cause smoke

[Scoobum]

Boost won't rise...smoke.. .one low cylinder...chu gging in 3rd. Headgasket starting to go on that cylinder?

[Steve Wood]

Saw one the other day with about 110 psi on all six. . It was making 23 psi boost and running 12.0 in the quarter so I don't know

[Steve Wood]

Losing any water?

[Shimy87]

Not losing water. SM recall showed 792 at 92 mph so not that rich. The plug in the low cylinder was snow white, actually they all were pretty white. I thought light tan was a better color but again im only used to reading plugs in my race sleds.

[Steve Wood]

snow white would be very lean....strang e...nothing adds up....looking forward to another drive...

I was thinking the smoke might be water but then you said it went away

[Steve Wood]

No exhaust leak around the base of the egr valve?

[Scoobum]

What color was the smoke?

[Shimy87]

Didnt see any smoke leaks anywhere when I did the smoke test. The smoke during the run was blue so it was oil, coolant would have been whiteish I think? Could boost be holding the pcv valve closed and causing it to push oil where it isnt supposed to go? It has been pushing some oil up and thru the breather on the drivers side valve cover.

[Steve Wood]

I would guess than #6 with the lower compression is allowing blow by into the pan....

pcv should be closed during boost to keep boost out of the oil pan.  Be sure your pvc is moving freely so it can open close as it is supposed to.  you should be able to blow very little air thru it from the top side (end that goes to the vacuum block)

None of that should have much to do with making boost, however

Now if the intake is not sealed to the heads properly, blow by rising to the top of the engine could be sucked into the combustion chamber and also make the engine run lean

[Steve Wood]

If the pcv is not sealing when you blow thru it, that could cause the oil to spit out as you describe....yo u can always just plug the hose going to the pcv and see if it stops blowing oil up

[Shimy87]

Thats what I was going to try.  REALLY hoping its not blow by on low cylinder!!

[Shimy87]

plan for today is to eliminate the possibility of pcv valve letting boost pressurize pan. plugging line to charcoal canister (no check valve found yet) using 2 stroke oil to do another smoke test for exhaust leaks, was going to let the fuel pressure reg vacuum line suck it in. no point in taking a bunch of things apart, if it dosent leak smoke then its gotta be sealed enough to build boost.....I think?