what could cause blow by?
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what could cause blow by?
i just had my b16 motor rebuilt with je pistons and eagle rods, it has a block guard, aem fuel pressure regulator, venom fuel rail, 550 rc's, 255 walbro, t3/t4 50 trim, tial wg, tial blow off, a big fmic, i replaced the water pump, oil pump, timing belt, and i am running the stock head for now when i took the head to a machine shop they said it looks fine and i had it resurfaced. now it starts and runs but it sound real lopy like it has cams and it is pissin out steam and air from the breather on the valve cover?? and suggestions on this problem? could it be a maybe a tune but i dont wanna take a chance on blowing it if it aint right inside. any info would help thanks
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Re: what could cause blow by?
well oil vapor is what usually comes out of that vent, build motors or turbo motors on boost often more fumes coming out, but you say steam which is water, did you mean to say oil vapor?
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Re: what could cause blow by?
Oil comes out of that breather if you dont have that routed any where.(catch can, or a breather filter...A simple catch can setup would fix that...
As for the idle have you check for vacum leaks? This can cause idle to sound like you have a cam.....Also if the car doesnt have a proper basemap that could cause bad idle
As for the idle have you check for vacum leaks? This can cause idle to sound like you have a cam.....Also if the car doesnt have a proper basemap that could cause bad idle
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Re: what could cause blow by?
the car was tuned for the stock motor on 11 lbs so the ecu is programed for 550 rcs and a 255 but that was higher compression. someone was telling me that since it has lower compression now it might make the car louder like it has cams could that be true? i will check tomorrow for vaccuum leaks maybe something came off thanks
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Re: what could cause blow by?
the car was tuned for the stock motor on 11 lbs so the ecu is programed for 550 rcs and a 255 but that was higher compression. someone was telling me that since it has lower compression now it might make the car louder like it has cams could that be true? i will check tomorrow for vaccuum leaks maybe something came off thanks
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Re: what could cause blow by?
Blinx9900 speaks the truth. if youre having problems like that you might wanna figure out whats causing them. and on the idle issue. my car idled like that from simply switching from a ramhorn manifold to an inlinepro. you need to get your car retuned anyway if the tune is for a stock bottom end......
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Re: what could cause blow by?
head gasket i had nasty blow by and smoke blowing from my valve cover and crappy idle, compression was 95,80,120,65 replaced the head gasket and fix all the problems....ive seen guys put them on backwards and upside down dont ask me how but its been done
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Re: what could cause blow by?
well a ton of blow by (white smoke) out of the valve cover means a cracked ringland. which wouldnt make sense in his case as it sounds like a new motor.
#10
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Re: what could cause blow by?
what can be the problem. i would like to know too. could it be because of the type of rings being used since this is a new build motor?
#12
Re: what could cause blow by?
Bad Pcv
Bad rings Or Broken ring lands. I had the same thing happen last yr and it turned out to be a busted ring land on one of the cyl.
Bad rings Or Broken ring lands. I had the same thing happen last yr and it turned out to be a busted ring land on one of the cyl.
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92redhatch
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11-26-2006 07:39 PM