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12-18-2011
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#1 |
 Join Date: May 2007
Location: Addison IL
Posts: 250
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Defective Thermostats
I have noticed a defect in new Stant engine cooling thermostats.
For details see: http://www.zr1specialist.com/HAT%20W...thermostat.htm |
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12-18-2011
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#2 |
  
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: Defective Thermostats
 Once again, the "Brothers of the Beast" are fortunate to have you to support us. Thanks again, Marc!! 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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12-18-2011
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#3 |
 
Join Date: Jun 2005
Location: pittsburgh
Posts: 4,632
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Re: Defective Thermostats
thanks for the great info marc, we'd be lost without you
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It's not the car, it's the people - Doug Johnson 90 r/r "KEYS ON" nick named "T.L.B" |
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12-18-2011
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#4 |
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Join Date: Feb 2011
Location: San Marcos CA
Posts: 1,802
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Re: Defective Thermostats
Makes me feel a little better about making the effort to find an oem one. Hopefully Stant will address the issue on future production runs.
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12-18-2011
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#5 |
 
Join Date: Feb 2010
Location: Pendleton, IN
Posts: 3,904
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Re: Defective Thermostats
Thanks, Marc. Good to have your expertise.
Brett
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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 |
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12-18-2011
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#6 |
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Join Date: Nov 2011
Location: Dunbarton NH
Posts: 7,486
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Re: Defective Thermostats
I'm new to this gig, but I love that the support that a guy like Mark will take the time to put a post out there just to let us owners know there is s problem. Thanks Mark. Can't wiat until I can afford to ride to Chicago for the new 510hp upgrade. I can't imagine what 500 hp feels like.
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12-18-2011
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#7 |
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Join Date: Nov 2011
Location: Dunbarton NH
Posts: 7,486
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Re: Defective Thermostats
Geez, look at the typos. I need to slow down.
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12-18-2011
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#8 |
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Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,708
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Re: Defective Thermostats
Anybody need an OEM one, its used but in very good condition.
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12-19-2011
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#9 |
Join Date: Dec 2004
Location: Jacksonville, FL USA
Posts: 4,645
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Re: Defective Thermostats
Thank you Marc for the head's up!
By extension should those of us that buy from the local chevy store check the stat we get going fwd?
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1990 ZR-1, Black/grey, #2233, stock. ZR-1 Net Reg Founding Member #316 & NCM member Last edited by tomtom72; 12-19-2011 at 09:07 AM. |
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12-19-2011
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#10 |
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Join Date: May 2007
Location: Addison IL
Posts: 250
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Re: Defective Thermostats
Up until about six months ago we were acquiring thermostats from the local GM dealer. I never received a defective thermostat from GM. Over the past two years the GM price increases have added up to a ridiculous level. That drove us to acquire them from other parts suppliers.
It’s easy to tell if you get a bad one. Push up on the bypass valve seat. The difference between the correct five pound spring and the incorrect one pound spring is pretty stark. |
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Linear Mode
