Gm top end cleaner, smoke from breather
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Joined: May 2003
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From: Toledo, OH
Car: 1992 Firebird
Engine: forged 357
Transmission: 700r4, 2200-2400 stall, vette servo
Axle/Gears: stock pegleg 2.73 drum (temp)
Re: Gm top end cleaner, smoke from breather
Originally posted by joshwilson3
When I was doing this, smoke was also coming out of the passenger valve cover breather. Is that Ok? I'm guessing it must be getting into the crankcase from blow-by? The car did smoke out of the tail pipe, but I thought it would look black cause of burning the carbon, but it was blue. That would tell me it is oil. But I guess that could be because I sucked the stuff up in the PVC line, and oil was probably in there from the PVC line.
When I was doing this, smoke was also coming out of the passenger valve cover breather. Is that Ok? I'm guessing it must be getting into the crankcase from blow-by? The car did smoke out of the tail pipe, but I thought it would look black cause of burning the carbon, but it was blue. That would tell me it is oil. But I guess that could be because I sucked the stuff up in the PVC line, and oil was probably in there from the PVC line.
white = coolant
black = unburned gasoline
*AOL voice* Welcome! You've got blowby!
now you have a great excuse to get new heads!
:lala:
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Supreme Member
Joined: Jun 2001
Posts: 9,550
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From: Charleston, SC
Car: 91 Camaro Vert
Engine: 02 LS1, HX40
Transmission: 2002 LS1 M6
for the smoke coming out the breather, i can only think of two ideas.
1. the worn ring/blowby idea you already have
or 2, a intake manifold leak that lets it get into the crankcase.... you could just have bad intake gaskets....
also if it was leaking into the lifter valley that would also suck up some oil mist.. and that would cause excessive carbon build up... and that would cause you to need the top end cleaner.. (and see a big effect).
btw, you can save your money on the stuff.... water works just as well.
1. the worn ring/blowby idea you already have
or 2, a intake manifold leak that lets it get into the crankcase.... you could just have bad intake gaskets....
also if it was leaking into the lifter valley that would also suck up some oil mist.. and that would cause excessive carbon build up... and that would cause you to need the top end cleaner.. (and see a big effect).
btw, you can save your money on the stuff.... water works just as well.
Joined: Feb 2001
Posts: 13,756
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From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Originally posted by joshwilson3
Can you suck the water up through the PCV valve? I'm afraid of getting too much water in and it cracks something. Could I pour so much water in to kill the engine like you do with the top end cleaner? Or do you not put that much water in at a time?
Can you suck the water up through the PCV valve? I'm afraid of getting too much water in and it cracks something. Could I pour so much water in to kill the engine like you do with the top end cleaner? Or do you not put that much water in at a time?
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Joined: Dec 2003
Posts: 462
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From: Barstow, CA
Car: 91 Camaro RS
Engine: 305 TBI
Transmission: WC T-5
Axle/Gears: 3.73
I thought it was perfectly normal for fumes to be coming out of a breather. Isn't that what it's supposed to do, ventilate the crank case?
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Joined: Dec 2003
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From: springfield, missouri
Car: 83 firebird, 95 tahoe
Engine: crossfire 305
Transmission: 700r4
I work at a buick dealership and we use the GM top engine cleaner on a regular basis. All the buicks we do always have a blue-ish smoke from the tailpipe till all the cleaner is burned out. When I used it on my 83 ta it smoked the exact same way. I do not know about your smoke from the breather but I think the blue smoke after the cleaner is applied is okay.
Supreme Member
Joined: Jun 2001
Posts: 9,550
Likes: 4
From: Charleston, SC
Car: 91 Camaro Vert
Engine: 02 LS1, HX40
Transmission: 2002 LS1 M6
Originally posted by joshwilson3
Can you suck the water up through the PCV valve? I'm afraid of getting too much water in and it cracks something. Could I pour so much water in to kill the engine like you do with the top end cleaner? Or do you not put that much water in at a time?
Can you suck the water up through the PCV valve? I'm afraid of getting too much water in and it cracks something. Could I pour so much water in to kill the engine like you do with the top end cleaner? Or do you not put that much water in at a time?
the way i started doing it was to take a plastic fast food cup and punch a small hole in the bottom... well bottom side really.
then i take off the air cleaner and start the car... i put my thumb over the hole and hold the cup with one hand.... while i give it a lil gas with the other... i then take my thumb off and let it pour into the TBI.
no chance of pouring it in too much that way, but if you stall the engine, STOP and dont keep pouring water in.
misting seems to work, but after i was told to try to pour more in by another board member, i found that it worked ALOT better.
Supreme Member
Joined: Jun 2001
Posts: 9,550
Likes: 4
From: Charleston, SC
Car: 91 Camaro Vert
Engine: 02 LS1, HX40
Transmission: 2002 LS1 M6
Originally posted by joshwilson3
Do you know why my passenger side valve cover breather would be smoking when I did the Gm top end cleaner?
Do you know why my passenger side valve cover breather would be smoking when I did the Gm top end cleaner?
Originally posted by joshwilson3
Which do you say is better, water or the Gm top end cleaner?
Which do you say is better, water or the Gm top end cleaner?
however, i dont feel the need to change my oil after doing the water trick.. i mean, even if the water got into the crankcase, its water.. and the hot oil would cause the water to turn into steam evaporate anyway, so no harm done... looking at the benifits : no oil change, gets carbon off and its free.. its jsut the choice i make.. i cant really put the top end cleaner down since ive only used it once...
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