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Old 05-03-2005, 06:21 PM
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How hot is too Hot

Thank you for any help that you can give. I looked everywhere for a thread on this but had no luck.
I have a 67 el camino 383 stroker runs great has maybe 600 miles on her. Heres what happened I was checking my charging system and she was idling for about ten mins anyway I got back in her and drove her about two blocks when I noticed that she was bout 250 degs . I stopped and let her cool down she seems to run fine.
Is there anything that I should check or watch for.....Thanks Steve

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Old 05-03-2005, 06:31 PM
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What car?

Do you have a fan shroud?

What type of fan setup?

When you have the radiator cap off can you see coolant circulating?

When you have the radiator cap off can you see thermostat operation?
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Old 05-03-2005, 06:36 PM
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it normaly cools fine I had turned off the elec. fan for maybe five mins while I checked the charing system. Is 250 degs going to kill the life of my motor??
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Old 05-03-2005, 06:38 PM
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It sounds like you have a lack of airflow threw the radiator since it runs cool going down the road, due possibly to a lack of air pulled from the fan or no fan shroud. Do you have a fan shroud?
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Old 05-03-2005, 06:41 PM
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You should be OK, if it was only a short time. ....I would get a temp sensor control for your electic fan....just to be on the safe side.

I have never been a big fan of electric fans (pun intended)................they suck the life out of your electrical system. Most street cars should be able to survive with a good rad, shroud and fan.
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Old 05-03-2005, 06:55 PM
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well that makes me feel better. Is thier anything that I should check or look out for?
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Old 05-03-2005, 08:12 PM
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Temps of 250 "could" do a few things; take out a head gasket, warp a head, take the tension out of rings. It also means your oil temp was close to 300, so change your oil and filter. It's a matter of how long, how hot it really got and a little bit of luck to dodge any of these bullets.
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Old 05-03-2005, 10:13 PM
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210 is shut down in my book.IMO for performance I prefer SBC's to run in the 140-160 range.180 in a daily driver.
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Old 05-04-2005, 05:59 AM
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high temps

Doc here,


Also high temps shorten the life of the transmission if it's an automatic...You'll want to avoid overheats if possible in the future..

195 to 210 is happening for a daily driver..anything above or below I'd be concerned about..

make sure the fan stays working, you have a proper shroud, 50/50 or better mix antifreeze, good and proper PSI cap, and burp the system through the recovery system..if you don't have one consider installing one, their great for removing air bubbles and sucking back coolant to replace the air..

Chances are pretty good your alright as it stands, but I'd check..repair (if needed) and maintain the cooling system for good future cooling..

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Old 05-04-2005, 08:54 AM
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Quote:
Originally Posted by chevyleadfoot
it normaly cools fine I had turned off the elec. fan for maybe five mins while I checked the charing system. Is 250 degs going to kill the life of my motor??
As I understand it you turned your electric fan off for about 5 minutes while the engine was running. No wonder your temp went up that high. With no air moving through the radiator very little cooling was taking place.

250* won't kill your engine as long as it wasn't run for an extended period. If it had damaged a head gasket or warped a head you would know it by now so if it's running OK I would just consider this a lesson learned and go from here.

The advice you have been given on this thread will help even if it normally cools OK. Make sure you have a decent shroud if you don't already have one and do like Poncho suggested and get a thermostat switch for your fan.
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Old 05-04-2005, 09:16 AM
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I know this is hindsight, but next time put a cheap box fan from wallymarty in front of the grill to blow air on it. It is not a bad idea to do this on a non moving car while working on the running engine anyway.
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