04-27-2013 | #1 |
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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IH to head; Gasket Failure
Changing the alternator on my 92 I noticed that the oil catch can was milky. looked in the plenum, milky oil.
I checked the oil in the pan, no issues, checked the coolant, no issues When I took IH off the head the gaskets were badly distorted and you could see were OIL and Coolant were mixing
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
04-27-2013 | #2 |
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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Re: IH to head; Gasket Failure
There were NOT Jerrys gaskets
They had been on the car since I did the original porting some time ago
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
04-27-2013 | #3 |
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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Re: IH to head; Gasket Failure
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
04-27-2013 | #4 |
Join Date: Feb 2010
Location: Pendleton, IN
Posts: 3,904
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Re: IH to head; Gasket Failure
Ouch....that's ugly. Lee, do you know the manufacturer of the gasket. Might help to prevent anyone else from having the same fate.
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1988 KOH Prototype EX5023 sold 1990 ZR-1 #444 Convertible 1990 ZR-1 Black #966 1991 ZR-1 Quazar Blue #296 1957 Duntov SS Project |
04-27-2013 | #5 |
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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Re: IH to head; Gasket Failure
I do know who made them, going to let them know the issue, they do some good stuff generally. Will see if they will switch material; I generally use Jerrys, those tend to be the best.
Stick with Jerrys
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
04-27-2013 | #6 |
Join Date: Feb 2010
Location: Pendleton, IN
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Re: IH to head; Gasket Failure
nough said.......
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1988 KOH Prototype EX5023 sold 1990 ZR-1 #444 Convertible 1990 ZR-1 Black #966 1991 ZR-1 Quazar Blue #296 1957 Duntov SS Project |
04-27-2013 | #7 |
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,709
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Re: IH to head; Gasket Failure
Looks like mine when I uses FO gaskets. I use a Permatex 2 around that area now. No more problems.
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[SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX |
04-27-2013 | #8 |
Join Date: Jan 2009
Location: Portland Oregon metro area (Washington side)
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Re: IH to head; Gasket Failure
Were all the bolts tight?
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Scott Vett owner since 1979._It's about the car and the people |
04-27-2013 | #9 |
Join Date: May 2007
Location: Chicagoland, IL
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Re: IH to head; Gasket Failure
When you port the top end, the material between the coolant and the #3 or 4 primary runner is very small. The coolant seeps thru the the gasket pulled by the vacuum. So paper gaskets don't cut it. And thicker is not better. The Permatex or shellac works well.
Update: I meant to write #3 or #4 not 5 primary runners
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[SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX Last edited by XfireZ51; 04-28-2013 at 12:38 AM. |
04-27-2013 | #10 |
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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Re: IH to head; Gasket Failure
Everything was tight....I had installed these prior to Dominics failure....must have been 3-4 years ago.
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
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