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#1 |
Registered User
Join Date: Feb 2012
Location: anaheim ca
Posts: 135
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runnin hot
How you fellas Doin, got a little problem, I have 3 layer aluminum radiator, with a 3000 cfm fan behind it. But my lady (stepper) still tend to run high on temp on me. Running at 195-210. The only way I've stayed at 175-180 is with my hood off, but in California, that's bad. What are you guys doing to keep cool under the hood? Im running stock 350 jasper motor with 700r4. Any ideas or info. What is your set up... Thanks fellas.
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#2 |
Registered User
Join Date: Feb 2013
Location: central California
Posts: 2,735
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Re: runnin hot
I have 2 c10's one stock and one not. Both are 283's and both have identical cooling systems, factory style radiators with shroud and same flex fans. The non-stock motor has an aluminum manifold but both trucks have identical electric temp guages with the sender near the water neck. The guage on the stocker stays at 180 but the other truck reads steady 200-210. One hot Cali day (when my wife wasn't watching) I put the turkey thermometer in each radiator after driving several miles. Both radiators showed 180 degrees even tho the non-stock truck guage was at 200 plus. Could be the aluminum manifold having more conductivity, I dunno. But have you checked your truck in a similar fashion?
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#3 |
Registered User
Join Date: Dec 2011
Location: Royal Oak, Michigan
Posts: 193
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Re: runnin hot
what's the ratio of your mixture?
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#4 |
Registered User
Join Date: Feb 2012
Location: anaheim ca
Posts: 135
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Re: runnin hot
I have not checked for any of those suggestions, but I will now. I will have an answer. Thanks
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#5 |
Registered User
Join Date: Feb 2013
Location: central California
Posts: 2,735
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Re: runnin hot
Good deal then, just be sure you don't encounter Ol' Faithful when you remove the cap. And if you do the turkey therm deal, have a look at the actual flow of the coolant. It should have a noticeable current in the radiator.
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#6 |
Registered User
Join Date: Feb 2012
Location: anaheim ca
Posts: 135
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Re: runnin hot
I have 50/50 from autozone . And a bottle of royal purple
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#7 |
Chevy addict
Join Date: May 2012
Location: Iron Ridge, WI
Posts: 1,085
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Re: runnin hot
Run either 160 or 180 thermostat, 195 is too hot for the old critters, takes more to cool them down. Especially in the warmer climate states. Flush the rad, heater core and block to make sure they aren't plugged.
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#8 | |
Registered User
Join Date: Sep 2012
Location: Dallas, GA
Posts: 1,497
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Re: runnin hot
Quote:
Also, if he runs 175-180º with the hood off, he doesn't have a 195º thermostat. |
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#9 |
Registered User
Join Date: Nov 2009
Location: Galt, Calif
Posts: 2,437
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Re: runnin hot
Thats totally wrong, providing you have a shroud and a rad in good condition, you should run 180 - 192 -stat, reason being is you keep coolant in the rad longer allowing it to cool off before t-stat opens. I think in his case he should start with 180 stat, ( shroud does he have one ) if not get one, check timing, ( vaccum advance hooked up and working ) and fuel mix, check for vaccum leaks, where is sender wired to head vs intake manifold, check for collasped lower hose, ensure pump is good and check accuracy of gauge.
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`64 C10 vortec 350/350/373 posi `69 RS/SS 350/350/308 `37 Ford 406/350/324 traclock `68 Dart 370/904/323 suregrip |
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#10 |
Registered User
Join Date: Feb 2012
Location: anaheim ca
Posts: 135
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Re: runnin hot
I've flushed it the radiator, new pump. New antifreeze. I just took out the tstat, gonna test it tomorrow, and I'll pick up those gadgets to run that test. Thanks for the info, I will keep you guys posted.
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#11 |
Registered User
Join Date: Apr 2013
Location: San Jose,CA
Posts: 62
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Re: runnin hot
My water temp guage runs about 10 degrees hotter than the actual temp. So therefore was not actually running hot, the faulty gauge made me think so.
Here is a link to an article on testing it out. http://www.madelectrical.com/worksho...mp-gauge.shtml
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1963 Chevrolet Suburban |
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#12 |
Registered User
Join Date: Feb 2012
Location: anaheim ca
Posts: 135
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Re: runnin hot
No shroud, I took it off because it was causing the heat to rise a lot quicker....
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#13 | |
Registered User
Join Date: Nov 2009
Location: Galt, Calif
Posts: 2,437
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Re: runnin hot
Quote:
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`64 C10 vortec 350/350/373 posi `69 RS/SS 350/350/308 `37 Ford 406/350/324 traclock `68 Dart 370/904/323 suregrip |
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#14 |
Registered User
Join Date: Jul 2011
Location: Anderson, Texas
Posts: 535
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Re: runnin hot
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#15 |
Registered User
Join Date: Feb 2012
Location: anaheim ca
Posts: 135
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Re: runnin hot
And I did double check rotation of my fan it's sucking air instead of blowing it...
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#16 |
Registered User
Join Date: Feb 2013
Location: central California
Posts: 2,735
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Re: runnin hot
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#17 |
Registered User
Join Date: Feb 2012
Location: anaheim ca
Posts: 135
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Re: runnin hot
No, it's taking outside air into the engine bay. Blowing air on to engine from outside air.
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#18 |
Registered User
Join Date: Feb 2013
Location: central California
Posts: 2,735
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Re: runnin hot
Good, that's the way it should be. In traffic a radiator needs outside air drawn in by the fan to stay cool. Hot ol' engine air would do it little good. Gotta keep it cool, dig?
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#19 |
Registered User
Join Date: Feb 2012
Location: anaheim ca
Posts: 135
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Re: runnin hot
If I left the shroud on my temp would rise quick. Without it I'm running a lot cooler
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#20 |
Registered User
Join Date: Feb 2013
Location: central California
Posts: 2,735
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Re: runnin hot
Maybe you should post a pic of your fan because this is the first time I've ever heard of a shroud being a hindrance to the cooling process.
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#21 |
Registered User
Join Date: Jan 2003
Location: Mcloud,Ok
Posts: 157
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Re: runnin hot
Agreed, a picture would be cool.
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#22 |
Registered User
Join Date: Feb 2012
Location: anaheim ca
Posts: 135
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Re: runnin hot
Tryin to upload via mobile, but not letting me...
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#23 |
Registered User
Join Date: Feb 2012
Location: anaheim ca
Posts: 135
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Re: runnin hot
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#24 |
Registered User
Join Date: Feb 2012
Location: anaheim ca
Posts: 135
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Re: runnin hot
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#25 |
60-66 Nut
![]() ![]() Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,247
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Re: runnin hot
A couple things I see right off is 1) your radiator is not sealed to the opening in the radiator support. I can see where air can get past the radiator on the sides. And 2) with the fan mounted like that, it is only cooling part of the radiator. It is better to have a shroud that covers the entire radiator, and accomodates the fan being used. It also appears that quite a few of the fins on the radiator are bent over. If they are bent over, air can not get thru.
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