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Overheating/ What pressure cap?

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Old Jul 10, 2013 | 09:19 PM
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Default Overheating/ What pressure cap?

Hey all, I am running a dual core AFCO radiator and was running a 16lb cap. It was good for about 500miles then I started to experience major overheating issues. Coolant would just boil and radiator will only stay close to half full. I started to inspect everything tonight and found this. Should I go up to a 20lb cap or do I possibly have other issues? The car is a single turbo car putting down roughly 600rwhp. Thanks
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Old Jul 11, 2013 | 07:16 AM
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2 suggestions:
1. Pressure test the cap.
2. Check for head gaskets being toast.
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Old Jul 11, 2013 | 11:12 AM
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What is the best way to check the gaskets?
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Old Jul 11, 2013 | 12:16 PM
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Check you oil for water. Grab a clear plastic container like a gallon milk or soda bottle and drain a little bit of oil and then let it sit. Any moisture will collect at the bottom. Also check your overflow tank for signs of oil on top.
The other sign of a blown head gasket is lots of smoke, which is actually steam in your exhaust.
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Old Jul 11, 2013 | 12:24 PM
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put the stock cap on it and drive.
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Old Jul 11, 2013 | 04:34 PM
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It appeared to be the cap. Found my factory cap, stuck it on, let it idle for 15min and it held at 190!
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