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Old 11-12-2012, 05:16 PM   #1 (permalink)
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Default High horsepower and water pump failure????

Just wondering if anyone else is having any sort of problems with their water pumps in high horsepower set ups.. 600+, I've now had two go out, leaking out the weep hole, trying to figure out if I just have bad luck or if anyone else is experiencing this? Not lifting the head no excessive pressure in cooling system.
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Old 11-12-2012, 05:22 PM   #2 (permalink)
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Quote: Originally Posted by silver03srt View Post
Just wondering if anyone else is having any sort of problems with their water pumps in high horsepower set ups.. 600+, I've now had two go out, leaking out the weep hole, trying to figure out if I just have bad luck or if anyone else is experiencing this? Not lifting the head no excessive pressure in cooling system.


None. 3 hard years (going on 4) at north of 600+hp, with the original OEM pump.
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Old 11-12-2012, 05:53 PM   #3 (permalink)
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What kind of pump are you buying? Cause there are ones to watch out for.
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Old 11-12-2012, 07:29 PM   #4 (permalink)
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I've used a Advanced Auto Parts pump on my current 700+ hp build and before on my mid 10 second stock bottom setup. Never had one fail. Sure you don't have pressure getting into coolant system and blowing it out? I've never seen blow before anything else, but just a theory.
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Old 11-15-2012, 04:58 PM   #5 (permalink)
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Yah, I'm sure there isn't anything getting in it as far as pressure wise, the cap would blow into the overflow before pump failure, just starts leaking out of the weep hole. I'm buying factory pumps. This one literally has maybe 2-300 miles on it, granted I've floored it a lot during that time, but didn't have a problem for a few thousand miles on the other one, first one was the plastic wheel one and second one was metal wheel pump. Anyone using a "performance" pump?
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Old 11-15-2012, 05:16 PM   #6 (permalink)
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Over-tensioned timing belt?
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Old 11-15-2012, 05:17 PM   #7 (permalink)
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Do you have a manual timing belt tensioner?If so make sure your not putting too much tension on the belt.
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Old 11-15-2012, 07:04 PM   #8 (permalink)
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Not over tensioning it, using the stock tensioner.
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