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04-28-2013
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#11 |
  
Join Date: Nov 2007
Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri
Posts: 6,493
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Re: IH to head; Gasket Failure
Make that X2 with those gaskets...
Right after Dominic had post-porting gasket issues, so did I; same maker. I switched to Jerry's gaskets and used that same Permatex 2 smeared around the coolant hole on both sides of the gasket...No more problems! You can just see the coolant seeping into the intake runner in this photo, following porting the top end. I don't think it would hurt to leave a mm or two of metal cresting the coolant port when porting in that region. Just a thought.  P.
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Good carz, good food, good friendz = the best of timez! 90 #1202 "FBI" top end ported & relieved Cam timing by "Pete the Greek" Sans secondaries Chip & dyno tuning by Haibeck Automotive SW headers, X-pipe, MF muffs Former Secretary, ZR-1 Net Registry |
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04-28-2013
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#12 |
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Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,709
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Re: IH to head; Gasket Failure
Paul,
I went thru that 2X myself. I tried both thin and thicker gaskets. The last time it happened, I had gone WOT and when the throttle shut, BAM a burst of steam came out the back end. I shut down the motor immediately and coasted to a stop. Called a tow and brought it home.
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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 |
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05-02-2013
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#13 |
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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Re: IH to head; Gasket Failure
I called flat out today, they wanted to look at the gasket, I think I tossed it...will send a pic.....
They also advised they swtiched material providers about 2 years and believe the quality is much better now.....
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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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05-02-2013
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#14 |
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Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,709
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Re: IH to head; Gasket Failure
I wouldn't be interested in being their R&D department. Whatever u do use the Permatex.
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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 |
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05-04-2013
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#15 | |
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Join Date: Nov 2007
Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri
Posts: 6,493
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Re: IH to head; Gasket Failure
Quote:
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Good carz, good food, good friendz = the best of timez! 90 #1202 "FBI" top end ported & relieved Cam timing by "Pete the Greek" Sans secondaries Chip & dyno tuning by Haibeck Automotive SW headers, X-pipe, MF muffs Former Secretary, ZR-1 Net Registry |
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