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#1 |
Registered User
Join Date: Sep 2012
Location: Eads CO
Posts: 28
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puffin white smoke.. help!
the passenger bank was rolling out a lot of white smoke and the driver was a little. it was mostly only doing at it idle then it would go down at higher RPM's. pretty sure the heads are good, but not positive. had a little condensation happen and got a little bit of water in the oil, it was only ran for a little before I noticed it, then replaced as soon as I could. could the piston rings be stuck or bad? heads? gasket? I have the engine all tore down right now so I can change anything out if I have to, any input would help!
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My Fleet: 1968 Mustang,1972 C10, 2002 Lincoln LS ![]() Father and grandfater restored Fleet: 1957 Bel Air 2door convertable, (in progress) 1957 4 door post, (in progress) 1959 Star Chief, 1966 Impala, and many others |
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#2 |
Senior Member
![]() Join Date: May 2010
Location: Wisconsin & Arizona
Posts: 4,844
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Re: puffin white smoke.. help!
Sounds like a head gasket that's allowing coolant to get into a cylinder.
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#3 |
Active Member
![]() Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
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Re: puffin white smoke.. help!
Since you have the engine out: did you notice any areas of the head gaskets that looked damaged? Usually you can tell if there was a leak.
Also, since you have the engine torn down, take the heads and have them check to make sure they're not cracked and do a complete rework while in the shop. Save you a lot of problems later.
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68 GMC 250/3 speed Saginaw p/b p/s 69 Chevy 350/350 currently in pieces still lookin for a cab 06 Trailblazer I just want a vehicle that I can work on, that won't talk to me, leave error msgs or keep track of how I drive... |
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#4 |
Cluster King
![]() Join Date: Nov 2012
Location: Junction City, OR
Posts: 5,263
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Re: puffin white smoke.. help!
Are any of the pistons clean? That is a sure way to tell that coolant got into the combustion chamber. Antifreeze will wash the carbon off. Something to look for.
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#5 |
I am a Referee of life.
Join Date: Jun 2000
Location: Greensboro N.C.
Posts: 13,993
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Re: puffin white smoke.. help!
Dont forget to check the water passages between the intake and heads for a leak also.
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The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil" |
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#6 |
Registered User
Join Date: Sep 2012
Location: Eads CO
Posts: 28
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Re: puffin white smoke.. help!
crap, took the heads off and somehow a nut managed to get into the intake and blow a hole in the piston. scared the walls to, going to have to have it machined
__________________
My Fleet: 1968 Mustang,1972 C10, 2002 Lincoln LS ![]() Father and grandfater restored Fleet: 1957 Bel Air 2door convertable, (in progress) 1957 4 door post, (in progress) 1959 Star Chief, 1966 Impala, and many others |
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#7 |
Registered User
Join Date: Nov 2012
Location: Riverside, CA
Posts: 1
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Re: puffin white smoke.. help!
I have white smoke coming out of my exhaust pipe as well. I believe it is the head gasket but never removed it before. Do i need to drain the oil before i remove my heads?
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#8 |
Active Member
![]() Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
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Re: puffin white smoke.. help!
It is possible that some of the coolant could have also gotten in the oil so if in doubt replace it. Otherwise it's not necessary -as mentioned above.
__________________
68 GMC 250/3 speed Saginaw p/b p/s 69 Chevy 350/350 currently in pieces still lookin for a cab 06 Trailblazer I just want a vehicle that I can work on, that won't talk to me, leave error msgs or keep track of how I drive... |
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#9 |
Cluster King
![]() Join Date: Nov 2012
Location: Junction City, OR
Posts: 5,263
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Re: puffin white smoke.. help!
You don't have to drain the oil before pulling the heads but you will absolutely want to do it before you fire the engine after replacing the head gaskets.
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#10 |
Registered User
![]() Join Date: Oct 2011
Location: jackson michigan
Posts: 755
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Re: puffin white smoke.. help!
No
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#11 |
Registered User
Join Date: May 2011
Location: Lebanon, Mo.
Posts: 1,315
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Re: puffin white smoke.. help!
With a nut in the cyl it should have made some noise. Glad you figured it out and hope it fixes as easy as possible.
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