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07-06-2010, 09:18 AM
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CC Member
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Join Date: Jul 2008
Location: Driftwood,
TX
Cobra Make, Engine: Contemporary Cobra, 427 side oiler
Posts: 1,850
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Not Ranked
Quote:
Originally Posted by cobred
In the morning disable the ign. so it doesnt start and crank it over a dozen or so revolutions and then pull the plugs and see if any plugs are wet with coolant. Its worth a try.
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Car was at 210 when we shut it off last night. He just cranked it a dozen times, pulled all 8 plugs and no sign of moisture. |
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07-06-2010, 09:24 AM
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Half-Ass Member
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Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 21,897
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Not Ranked
If it was me, I would just jump to a head gasket replacement (both of them).
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07-06-2010, 09:28 AM
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CC Member
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Join Date: Jul 2008
Location: Driftwood,
TX
Cobra Make, Engine: Contemporary Cobra, 427 side oiler
Posts: 1,850
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Not Ranked
Quote:
Originally Posted by patrickt
If it was me, I would just jump to a head gasket replacement (both of them).
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We already knew that.  |
07-06-2010, 09:31 AM
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Half-Ass Member
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Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 21,897
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Not Ranked
Quote:
Originally Posted by elmariachi
We already knew that. |
Well, I thought about it last night. He obviously broke something else besides his bypass hose. I don't see how it would be his radiator, pump, or anything else since the pressure was immediately down and the fans were still blowing. I guess it could happen, but it seems unlikely. The only thing left are the gaskets and, in the worst case, warping the aluminum. |
07-06-2010, 09:34 AM
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CC Member
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Join Date: Jul 2008
Location: Driftwood,
TX
Cobra Make, Engine: Contemporary Cobra, 427 side oiler
Posts: 1,850
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Not Ranked
Quote:
Originally Posted by patrickt
The only thing left are the gaskets and, in the worst case, warping the aluminum.
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....which is why I came here to you experts before we started tearing into the engine. |
07-06-2010, 09:43 AM
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Half-Ass Member
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Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 21,897
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Not Ranked
Pressurize the cooling system to about 12 lbs. then stick a rubber tube in each spark plug hole and the other end in your ear (and tell everyone to be quiet). If you get lucky, you'll hear something.
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07-06-2010, 12:54 PM
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CC Member
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Join Date: Jun 2003
Location: Palma de Mallorca, Spain,
ESP
Cobra Make, Engine: Contemporary with 482 KC/SO, TKO600,IRS Jag/AMP, 3.54 Salisbury PL,
Posts: 577
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Not Ranked
ermariachi,
its the head gasket. period. Everything beeing the same, it can not be anything else that is made out of metal.
I had to replaced an lmost new felpro headgasket because cooling liquid was oozing out of the head bolts. It was brand new and had not been abused.
After having replaced so many felpro head gaskets I decided to give the SCE Copper headgasket a try, with the silicon beads around the water passages and oil holes, which is the weak point.
I also had the head shaved to have them absolutely flat.
I have driven the cobra after that very, very hard and no issues with oil or water leaks like before.
__________________
Nothing sounds better than a Cobra in a Tunnel !
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07-06-2010, 01:13 PM
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CC Member
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Join Date: Dec 2000
Location: Broken Arrow. OK ( South Tulsa), USA,
OK
Cobra Make, Engine: 66 COBRA FE 427 /4SP. (HCS Coupe w/ 408 Stroker and TKO 600 -sold)
Posts: 5,595
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Not Ranked
I too am sure it is the head gasket but for a quick fix the Aluminium bars stop leak works great. I have been told that many new engines get this during assembly. Fel Pro quality is not what it once was. George Anderson (Gessford Machine and Mechanic of the year) likes Victor gaskets but they are very hard to find (at least around here).
Clois
__________________
Sunshine, Asphalt and no stop signs...Perfect
"Let's roll"
"Be part of Something Good
......Leave Something Good Behind!"
from CD "Long Road Out of Eden"
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07-06-2010, 01:26 PM
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CC Member
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Join Date: Jul 2008
Location: Driftwood,
TX
Cobra Make, Engine: Contemporary Cobra, 427 side oiler
Posts: 1,850
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Not Ranked
Head gaskets on this car are Cometic. We will likely try the Alumaseal last.
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07-06-2010, 01:34 PM
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CC Member
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Join Date: Oct 2003
Posts: 4,078
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Not Ranked
Nice to see one El helping the other el... 
__________________
Chas.
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07-06-2010, 02:21 PM
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Senior Club Cobra Member
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Join Date: Nov 2003
Location: Parker County,
Tx
Cobra Make, Engine: LoneStar LS427 , 427 Windsor
Posts: 381
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Not Ranked
You might want to make sure that "new" thermostat opens fully and at the right temperature.
__________________
Jim
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A Gnat! Quick, get a sledgehammer!
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