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05-05-2010, 09:36 PM
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CC Member
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Join Date: Nov 2009
Location: toronto,
ont
Cobra Make, Engine: superformance 460/ stroked to 521
Posts: 36
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Not Ranked
Superformance rad leak
Has anyone noticed the annoying minor rad leak superformance have.
If so what and where is it coming from,I know of 3 different people with the same problem.Any help on this would be greatly appreciated.
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05-05-2010, 09:40 PM
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Senior Club Cobra Member
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Join Date: Oct 2006
Location: Santa Cruz,
CA
Cobra Make, Engine: SPF 2613 Titanium w/Black, Roush 402SR
Posts: 4,097
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Not Ranked
I know a half dozen local SPF owners, and no one has any issues with radiator leaks. You might want to buy a dye kit and infrared light to see if you can track down the root cause.
__________________
Doug
No stop signs, speed limit - Nobody's gonna slow me down - Like a wheel, gonna spin it
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05-05-2010, 10:08 PM
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CC Member
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Join Date: Mar 2008
Location: Edgewood,
WA
Cobra Make, Engine: SPF 2773 Ford Racing 427W
Posts: 132
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Not Ranked
Put some powder Barrs leak in it and go for a drive. It's great stuff. SPF #2773 Jerry (In the radiator)
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05-06-2010, 04:12 AM
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Senior Club Cobra Member
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Join Date: Jun 2007
Location: Covington,
wa
Cobra Make, Engine: Superformance # 532, 466 BB, 560HP
Posts: 3,027
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Not Ranked
No leaks with mine.
__________________
John Hall
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05-06-2010, 04:19 AM
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Senile Club Cobra Member
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Join Date: Feb 2001
Location: Buffalo, NY USA,
NY
Cobra Make, Engine: Superformance
Posts: 4,534
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Not Ranked
Double check the upper rad hose connection. You may want to double clamp the hose to rad spouts. Do not overtighten the clamps as too tight does NOT increase the seal. Sometimes if a hose is leaking all it takes is to remove it, clean the hose and the nipple and reinstall.
And when will the BDR guys jump into this thread and tell us how "Brand X" NEVER leaks and how fast Suzy Creamcheese's silver car is????
__________________
"I'm high all right, but on the real thing....powerful gasoline and a clean windshield..."
rick@autoventureusa.net
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05-06-2010, 05:18 AM
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CC Member
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Join Date: Jul 2006
Location: Ottawa,
ON
Cobra Make, Engine: 2002 Superformance w/392 stroker
Posts: 1,622
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Not Ranked
Quote:
Originally Posted by JA COBRA
Has anyone noticed the annoying minor rad leak superformance have. If so what and where is it coming from,I know of 3 different people with the same problem. Any help on this would be greatly appreciated.
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Maybe 2 or 3 times, I've had a tiny leak (just a penny-size drop) from the bottom left corner of the rad. Is this what you're noticing too? I'd also be interested in any tips.
Mind you, I have a bigger coolant problem that I'm gonna have resolved in the next couple weeks. The intake manifold gasket is leaking and the Finish Line expansion tank isn't well sealed to the engine, so I'm gonna replace them both.
How many of you have replaced your intake manifold gaskets too? Should I go with the steel-core gasket rather than the usual one? My 392 stroker (351W) would use either the Fel-Pro 1262-S (steel core) or 1262 (regular). Thanks for any tips.
__________________
"Anyone who drives faster than you is a Maniac,
and anyone who drives slower is an Idiot." - George Carlin
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05-06-2010, 05:34 AM
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CC Member
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Join Date: Jun 2007
Location: Blitchton Ga,
Ga
Cobra Make, Engine: Superformance aluminum427
Posts: 188
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Not Ranked
Leaks
Check your resavior tank they are bad about leaking
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05-06-2010, 06:05 AM
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CC Member
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Join Date: May 2006
Cobra Make, Engine: SP2338
Posts: 3
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Not Ranked
Have car 2338, 4 years old. Developed a leak and pulled the radiator over the winter. Had a leak at both lower corners. I took it to a local radiator shop that works on all size and types of radiators. Most aluminum radiators they will just replace the core or complete rad. Because that was not an option they used an epoxy on all four corners. They did all four because they were sure that it would eventually leak there, that is were the stress is concentrated. Cost was $200 and no more leaks. Hope this helps.
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05-06-2010, 09:09 PM
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CC Member
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Join Date: Apr 2008
Location: Charlotte,
NC
Cobra Make, Engine: SPO 2813, Roush 427SR/TW
Posts: 100
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Not Ranked
I had a small leak, tightened the clamps and it was gone.
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05-07-2010, 03:46 AM
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CC Member
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Join Date: May 2008
Location: San Jose CA,
CA
Cobra Make, Engine: SPF_R_/BRG/FRBoss302/327CI/FordEFI/Under_Car_Exh/
Posts: 2,523
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Not Ranked
For a car that still thinks its British, mine doesnt leak. (surprising_ )
-- but I also know the guy who works on it. -- he is a nutcase about fit and finish.
__________________
Steve SPF 2734 MK3 / Brock Coupe #54- panavia.com
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05-10-2010, 10:04 AM
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CC Member
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Join Date: Jun 2008
Location: West Suburbs of Chicago,
IL
Cobra Make, Engine: Backdraft#357, 392CI Ford Racing, 459hp, 455ft/lbs , TKO 500, 3.43 Gears, Ceramic Coated Headers, Victor Jr. 750cfm, 17in Halibrand wheels, Sterling Gray/Silver Stripes, Gray Leather, Nitto NT05
Posts: 362
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Not Ranked
Quote:
Originally Posted by Mark IV
Double check the upper rad hose connection. You may want to double clamp the hose to rad spouts. Do not overtighten the clamps as too tight does NOT increase the seal. Sometimes if a hose is leaking all it takes is to remove it, clean the hose and the nipple and reinstall.
And when will the BDR guys jump into this thread and tell us how "Brand X" NEVER leaks and how fast Suzy Creamcheese's silver car is????
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Mark IV, still fiesty I see... Fine, I'll play along, we have special leak-proof BDR only radiators, you should order one from Cashburn. My friend with an SPF replaced the clamps and fixed his leak (yes, I have friends and yes, some have SPF or FFR's and we still talk to eachother)
My silver car is not that fast though, I don't have the "well built SMALL BLOCK FORD" that Tony Martin drove to set the low E.T. at Road America.
__________________
1/4 mile 11.92@115.6 and 60ft 1.632
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05-10-2010, 02:30 PM
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Regularly Offensive
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Join Date: Feb 2006
Location: yuba city,
ca
Cobra Make, Engine: spf
Posts: 1,231
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Not Ranked
It's not preconceived that the radiator will leak on an SPF. I have owned three of them and none of them leaked until I took the hoses off. Double check clamps and hoses. My Jaguar XJS12 on the other hand didn't leak either. The big cat did however mark it's territory. Alot......... 
__________________
Ed
Too close for missles, switching to guns.........
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05-12-2010, 08:33 PM
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CC Member
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Join Date: Apr 2005
Location: Near Chattanooga,
TN
Cobra Make, Engine: SPF, 418 Stroker
Posts: 220
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Not Ranked
Quote:
Originally Posted by SunDude
Maybe 2 or 3 times, I've had a tiny leak (just a penny-size drop) from the bottom left corner of the rad. Is this what you're noticing too? I'd also be interested in any tips.
Mind you, I have a bigger coolant problem that I'm gonna have resolved in the next couple weeks. The intake manifold gasket is leaking and the Finish Line expansion tank isn't well sealed to the engine, so I'm gonna replace them both.
How many of you have replaced your intake manifold gaskets too? Should I go with the steel-core gasket rather than the usual one? My 392 stroker (351W) would use either the Fel-Pro 1262-S (steel core) or 1262 (regular). Thanks for any tips.
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SunDude-
By all means, use the steel core intake gasket! I can send you horrendous pictures of what the non-steel gaskets look like after only a few thousand miles. And don't delay with the intake gasket replacement. If coolant is leaking into the oil, your main bearings are at risk. |
05-17-2010, 12:44 AM
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CC Member
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Join Date: May 2008
Location: San Jose CA,
CA
Cobra Make, Engine: SPF_R_/BRG/FRBoss302/327CI/FordEFI/Under_Car_Exh/
Posts: 2,523
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Not Ranked
Reconfirming -- have been through about 20 SPFs in the bay area -- and yet have found a rad - leak.
Broke the brass drain plug once ( mine)
had intake gaskets keel over, had fit and finish issues with people goofing up with the top tank.
I blew out the heater core with a Stewart water pump, switched to an EDL --problem solved.
__________________
Steve SPF 2734 MK3 / Brock Coupe #54- panavia.com
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05-17-2010, 05:26 AM
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CC Member
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Join Date: Jul 2006
Location: Ottawa,
ON
Cobra Make, Engine: 2002 Superformance w/392 stroker
Posts: 1,622
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Not Ranked
Quote:
Originally Posted by CWizard
SunDude-
By all means, use the steel core intake gasket! I can send you horrendous pictures of what the non-steel gaskets look like after only a few thousand miles. And don't delay with the intake gasket replacement. If coolant is leaking into the oil, your main bearings are at risk. |
I'm having the gasket replaced this Wednesday (the first chance I could get an appointment at the shop), using the steel-core unit. Thanks for the advice.
__________________
"Anyone who drives faster than you is a Maniac,
and anyone who drives slower is an Idiot." - George Carlin
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05-18-2010, 10:40 PM
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CC Member
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Join Date: Jul 2009
Posts: 110
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Not Ranked
I just fixed a leak coming from the overflow port on the expansion tank. The clamp just needed tightening and as you probably know, just fill the expansion tank half full of coolant.
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05-19-2010, 05:39 AM
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Senile Club Cobra Member
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Join Date: Feb 2001
Location: Buffalo, NY USA,
NY
Cobra Make, Engine: Superformance
Posts: 4,534
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Not Ranked
Quote:
Originally Posted by menace1
you probably know, just fill the expansion tank half full of coolant.
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You would be surprised how many people insist on "filling it to the brim" with coolant. Should be no higher than the internal baffle or halfway. More than that it's just gonna puke out or worse, expand enough to force past the clamps, etc.
__________________
"I'm high all right, but on the real thing....powerful gasoline and a clean windshield..."
rick@autoventureusa.net
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