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08-07-2012, 02:48 PM
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#1 |
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Registered User
Join Date: Feb 2003
Location: Santa Ana, CA
Posts: 2,191
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*^%#* Head Gasket!
Fired up the Blazer yesterday to go to work and noticed a nice cloud of white steam pouring from the driver side exhaust. It slowly when away as the truck warmed up, but I parked it until I can tear it down. Oil didn't have any water in it and water didn't have any oil, so I think a cracked block/head are not to blame. What a PITA though to pull the heads! It only appears to be leaking on the driver side head (I don't have a cross-over in my dual exhaust), but I will probably replace both head gaskets while I'm in there since I put them in at the same time about 10 year ago.
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08-08-2012, 08:18 AM
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#2 |
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Registered User
Join Date: Sep 2007
Location: Rolla Mo.
Posts: 667
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Re: *^%#* Head Gasket!
Good luck! I just got done doing a rebuild of my 383 in my Monte due to a flat cam, (lack of the zink additive) didn't know about that one.
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"85" Monte Carlo SS "71" K5 (SOLD) "64" Chevelle 1930 Chevy two door rat |
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08-08-2012, 12:00 PM
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#3 |
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Senior Member
 Join Date: Jan 2009
Location: huntington beach california
Posts: 975
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Re: *^%#* Head Gasket!
The same happened to my Blazer one year ago and it has done it one more time since. I only drive it around town an stay within 100 miles. Everything looks fine except for those two times. I am considering a ls conversion.
Posted via Mobile Device
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Pulatoy |
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08-08-2012, 01:58 PM
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#4 | |
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Registered User
Join Date: May 2006
Location: Philadelphia, Pa. 19454
Posts: 9,426
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Re: *^%#* Head Gasket!
Quote:
I feel your pain
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Semper Fi...Uncle Sam, you da man All parts offered to help are free, unless otherwise noted Dont try this stuff in my build thread, unless you have 55 years of mechanical OTJ training SAFETY FIRST AS usual, off topic They say your mind goes second, can't remember the first Jim |
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08-09-2012, 02:03 AM
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#5 | |
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Recalculating.....
Join Date: Nov 2010
Location: New Lenox Il
Posts: 686
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Re: *^%#* Head Gasket!
Quote:
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Brian - (BBrendal) 1969 Chevy Camaro Z28 1972 Chevy Blazer CST 2004 GMC Yukon (The truck that pulls the car trailer) 1972 Chevy Blazer CST #2 (Finished and sold!) Blazer build link... http://s1213.photobucket.com/albums/...rendal/Blazer/ |
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08-09-2012, 07:58 AM
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#6 | |
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Registered User
Join Date: Sep 2007
Location: Rolla Mo.
Posts: 667
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Re: *^%#* Head Gasket!
Quote:
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"85" Monte Carlo SS "71" K5 (SOLD) "64" Chevelle 1930 Chevy two door rat |
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08-09-2012, 02:41 PM
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#7 |
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Registered User
Join Date: Feb 2003
Location: Santa Ana, CA
Posts: 2,191
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Re: *^%#* Head Gasket!
Update: Pulled the heads and found the faulty gasket on #7 cylinder. I don't like doing all of the work to pull the heads, but I like being able to find the exact cause of the problem.
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08-10-2012, 08:15 AM
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#8 |
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Registered User
Join Date: Sep 2007
Location: Rolla Mo.
Posts: 667
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Re: *^%#* Head Gasket!
Any idea what caused it?
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"85" Monte Carlo SS "71" K5 (SOLD) "64" Chevelle 1930 Chevy two door rat |
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08-10-2012, 02:58 PM
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#9 |
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Registered User
Join Date: Feb 2003
Location: Santa Ana, CA
Posts: 2,191
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Re: *^%#* Head Gasket!
Bentblazer - not really sure of the cause. I installed the heads about 10 years ago when I had a valve job done with proper bolt torque and pattern. The damage occurred in a spot where the water jacket is very close to the cylinder bore on the firewall side of the #7 cylinder. It appears as though the steel ring in the gasket at the leaking spot has some rust damage, so the water has been working its way out for a while. I will be getting the heads and block checked for warps and have them decked if needed.
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08-10-2012, 03:27 PM
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#10 |
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Moderator
 
Join Date: May 2007
Location: Southern Cal
Posts: 19,989
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Re: *^%#* Head Gasket!
Man that sucks Craig...but at least you found the problem, and know how to fix it. Glad it didn't happen at Brother's...
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1972 C/10 Cheyenne Super SWB. Restored, loaded, slammed. 1968 C/10 50th Anniversary LWB. Unrestored, stock, daily driver/work truck. RIP ElJay RIP 67ChevyRedneck RIP Grumpy Old Man |
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