smokes after header install why?
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From: Orange county n.y.
smokes after header install why? i installed mac's and a ory and my car smokes bad on decell i even put new valve seals when i did my cam. my car is not tuned yet will this help?here's my info thanks for any help <img border="0" alt="[bang head]" title="" src="graemlins/gr_banghead.gif" />
Re: smokes after header install why? When you say "on deceleration," do you mean the 60 mph, drop it into 3rd bringing the RPM to 4500 before you go into a turn kind of thing (its really fun...I know.... <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> )?
If so, my car does it too. Some times when I'm really out pounding on it, I will down shift coming up to a stop sign. When the lights from the cars behind hit my rear end, it’s just a thick white cloud and then it will drift by me (almost like I did a burnout when I stopped).
It’s just a result of high rpm/low cylinder pressure causing the rings to leak. I came across a GM bulletin some time ago talking about this. When you turn high rpm with low cylinder pressure (not WOT), the rings don't "seat" properly and oil leaks by (they flutter).
The only ways I know to get rid of it are:
1) Don’t drive like that (yeah right... <img border="0" title="" alt="[Roll Eyes]" src="images/icons/rolleyes.gif" /> .).
2) Install a vacuum pump to cause negative pressure in the crank case.
It would be really cool if someone would figure out how to convert the stupid little “auto adjust” idler to an old style “manually adjusted” idler. Then instead of just spinning a dead pulley (not having it do anything), have that pulley spin a small vacuum pump.
Chris
If so, my car does it too. Some times when I'm really out pounding on it, I will down shift coming up to a stop sign. When the lights from the cars behind hit my rear end, it’s just a thick white cloud and then it will drift by me (almost like I did a burnout when I stopped).
It’s just a result of high rpm/low cylinder pressure causing the rings to leak. I came across a GM bulletin some time ago talking about this. When you turn high rpm with low cylinder pressure (not WOT), the rings don't "seat" properly and oil leaks by (they flutter).
The only ways I know to get rid of it are:
1) Don’t drive like that (yeah right... <img border="0" title="" alt="[Roll Eyes]" src="images/icons/rolleyes.gif" /> .).
2) Install a vacuum pump to cause negative pressure in the crank case.
It would be really cool if someone would figure out how to convert the stupid little “auto adjust” idler to an old style “manually adjusted” idler. Then instead of just spinning a dead pulley (not having it do anything), have that pulley spin a small vacuum pump.
Chris
Thread Starter
TECH Fanatic
iTrader: (2)
Joined: Dec 2002
Posts: 1,107
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From: Orange county n.y.
Re: smokes after header install why? no i get smoke after i get on it and then let off the throttle. in fact it even smokes when i'm getting on the throttle.car has 42k on it. <img border="0" title="" alt="[Embarrassed]" src="gr_emb.gif" /> I HATE SMOKE!!!
