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blowflyg
Tribal Scout

8 Posts

Posted - 16 Jul 2010 :  8:12:40 PM  Show Profile  Reply with Quote
have a 461 stroke with a electric fan on it , should I put the stock fan back on?,Temp is running at 215* and what size thermostat should i put in. and what of pluge should put in, and the setting.
need help
blowflyg

Bill Boyle
Horse Feathers (Charter Member)

USA
4797 Posts

Posted - 16 Jul 2010 :  9:19:09 PM  Show Profile  Visit Bill Boyle's Homepage  Reply with Quote
Where are you measuring the temperature? Is it at the block or in the water crossover? What is the timing of your engine? What about the air fuel mixture. Too lean and too advanced will bring up the temp. Are you running the original fan shroud with the electric fan? Does the fan run constantly? Is there a thermostat in the engine? What about the tubes in the housing are they in place? Lots to check out. Run a 160 degree unit Shaw is pretty good).

"Dedicated to keeping the classic Pontiac engine alive."

----
400 bored +.030, forged TRW pistons, ported 62 heads, Hedman headers, 2.5 SS dual exhaust X Pypes, Comp 276AH10 cam, Scorpion 1.65 RR, 850 Q-jet, stock intake & tuned HEI; original owner.

Edited by - Bill Boyle on 16 Jul 2010 9:20:13 PM
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blowflyg
Tribal Scout

8 Posts

Posted - 16 Jul 2010 :  9:49:35 PM  Show Profile  Reply with Quote
Where are you measuring the temperature? at the Block. Is it at the block or in the water crossover?
What is the timing of your engine? don't know.
What about the air fuel mixture. Too lean and too advanced will bring up the temp.I know that it's to rich.
Are you running the original fan shroud with the electric fan? Yes I'm Does the fan run constantly? yes it dose.
Is there a thermostat in the engine? yes it is, don't know the degree.
What about the tubes in the housing are they in place? Don't know what you are talking about. please explan.
Lots to check out.
Run a 160 degree unit Shaw is pretty good).where can you buy this at.
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Kiwi Mal
Cochise

New Zealand
690 Posts

Posted - 17 Jul 2010 :  01:08:50 AM  Show Profile  Reply with Quote
The stock fan and fan shroud do work well. The shroud lets the fan pull air through the entire surface area of the raiditor.
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Taman
Red Bird

USA
844 Posts

Posted - 18 Jul 2010 :  9:39:40 PM  Show Profile  Reply with Quote
Are you running a heater core. If so, take the return hose off the water pump and route to the intake manifold. This way you are not mixing hot head water with cool radiator water. If you don't run a thermostat, you need a restrictor washer. Then you can also plug the bypass from the front of the manifold to the water pump.

Everything Under The Sun Is Intune
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mike389
Big Trees

USA
568 Posts

Posted - 20 Jul 2010 :  12:18:28 PM  Show Profile  Reply with Quote
i highly recommend the Hayden severe duty clutch (O'Reilly's Auto/Shucks-Kragens) and the Alum. seven blade fan, which i found one off a '65 wagon at auto wreckers for $5.00!! works great w/shroud!!! Hi Flow 180 deg. thermostat. my temps have been 180 lately in 80+ deg. weather!!!! reading is at intake cross over. if you stay with electric fan make sure have a high CFM fan and set it to 160 deg. on and off!!!
mike

Edited by - mike389 on 20 Jul 2010 12:31:56 PM
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