A lot of blow by, headgasket bad?
12-28-2003, 08:51 PM
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A lot of blow by, headgasket bad?
I have a 99 LS with the setup in my sig boosting around 11 psi. About a week ago I noticed a stong smell of oil inside the car when the car would idle. I opened the hood and saw a lot of smoke coming out of the breather filter on my vavle cover. All of the hoses around the filter were oily and there was oil on my intake manifold. What could possibly be the problem? The car will be sitting in storage at least another 3 months since Ohio winters suck, so I have time to work on it.
Thanks,
Sorry about the long description
Thanks,
Sorry about the long description
12-28-2003, 09:12 PM
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Re: A lot of blow by, headgasket bad? (BG Boost)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BG Boost »</TD></TR><TR><TD CLASS="quote">Probably broken ring lands</TD></TR></TABLE>
Yep .. do a compression check. Same thing happened to me i melted the rings in two cylinders.
Yep .. do a compression check. Same thing happened to me i melted the rings in two cylinders.
12-29-2003, 06:35 AM
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Re: A lot of blow by, headgasket bad? (lazerus)
The same thing happened to my car and my buddies car it was a stuck PCV valve. After I replaced it . It took a little while for all the residual oil in the valve cover baffles to to go away. But now there is no oil coming from the filter. Check your PCV valve I think they should be replaced once a year there only $2.00 or less
Hope this helps.
Hope this helps.
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12-29-2003, 07:56 AM
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Re: A lot of blow by, headgasket bad? (boostedb20vtec)
The engine has 50,xxx miles. So there is a possibility this isn't anything major? 
I'm going to do a compression check this weekend.
I'm going to do a compression check this weekend.
12-29-2003, 08:07 AM
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Re: A lot of blow by, headgasket bad? (MilanoRedLST)
i wouldn't wait on that, or don't drive the car until you get comrpession test done - if theres a problem, it could get worse with driving.
12-29-2003, 08:54 AM
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Re: A lot of blow by, headgasket bad? (MilanoRedLST)
sounds like you broke some ring lands. Just throw some new forged pistons in and your back in buisness.
12-29-2003, 09:33 AM
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Re: A lot of blow by, headgasket bad? (BG Boost)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BG Boost »</TD></TR><TR><TD CLASS="quote">Probably broken ring lands</TD></TR></TABLE>
yeppers
yeppers
12-29-2003, 10:42 AM
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Re: A lot of blow by, headgasket bad? (red cx)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by red cx »</TD></TR><TR><TD CLASS="quote">sounds like you broke some ring lands. Just throw some new forged pistons in and your back in buisness.</TD></TR></TABLE>
Unless the walls were scored.
Unless the walls were scored.
12-31-2003, 08:35 PM
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Re: A lot of blow by, headgasket bad? (g2turbo)
To answer your PM milanored
When you put a breather filter in the valve cover you are only bypassing it from going into the intake. You are not bypassing the pcv system,so if you have oil coming out of the breather filter, but by putting a breather filter on you are keeping the oil from being introduced into the intake if it where hooked up to it. Also if you have a stuck pcv valve your pcv system isnt functioning properly so you have excessive crankcase pressure causing pressure to build up in the head pushing oil into the baffles of the valve cover causing oil to leak from the breather filter. but if your pcv valve isnt stuck then you have something else causing the elevated crankcase pressure i.e. exsessive blow by past the rings. thanks
When you put a breather filter in the valve cover you are only bypassing it from going into the intake. You are not bypassing the pcv system,so if you have oil coming out of the breather filter, but by putting a breather filter on you are keeping the oil from being introduced into the intake if it where hooked up to it. Also if you have a stuck pcv valve your pcv system isnt functioning properly so you have excessive crankcase pressure causing pressure to build up in the head pushing oil into the baffles of the valve cover causing oil to leak from the breather filter. but if your pcv valve isnt stuck then you have something else causing the elevated crankcase pressure i.e. exsessive blow by past the rings. thanks
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