C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

LT waterpumps

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Old Jun 25, 2008 | 07:36 PM
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Default LT waterpumps

Why are LT waterpumps so bad, mine was replaced right before I bought it and no 40k miles later it is bad.
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Old Jun 25, 2008 | 07:41 PM
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was it a rebuild? you can get a rebuild it it last but it better be a good one. otherwise a rebuild has been known to die in under 10,000 miles.

a nice delco factory replacement is the best way to go. a cheap knock off new pump is built with the same insufficient parts that a bottom of the barrel rebuild is going to have and thus have the same life expectancy.
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Old Jun 25, 2008 | 10:10 PM
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Originally Posted by Overboost
a nice delco factory replacement is the best way to go
I agree, the OEM is more money, but I think it is a better bet. Some rebuilds may last forever, but I think your odds are better with an OEM part. I don't always use OEM, but if the work involved is significant at all, I usually spring the extra money for the better part.
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Old Jun 26, 2008 | 05:02 AM
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http://forums.corvetteforum.com/show...erpump+rebuild
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Old Jun 26, 2008 | 09:00 AM
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Originally Posted by Randy93
Why are LT waterpumps so bad, mine was replaced right before I bought it and no 40k miles later it is bad.
Mine lasted 130,000 miles.
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Old Jun 26, 2008 | 11:01 AM
  #6  
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Lucky SOB.
I do not know what mine was, it was replaced before I bought the car, by the dealer.
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Old Jun 26, 2008 | 05:04 PM
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120k on the oem before it went bad and 20k on the replacement so far.
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Old Jun 26, 2008 | 05:06 PM
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I just installed a new Delco and my engine runs cooler temps than with the old one. I was doing a MSD so I went ahead and did the WP too.
Runs great.
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Old Jun 26, 2008 | 07:37 PM
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I've had good luck with AC Delco ---poor luck with aftermarket remans---some dealers will offer a "cheaper water pump" (Reman)--in a attempt to be competive with the aftermarket for all the "bargain shoppers" out in the world that can't do the work themselves--ultimately-- and this is a unique saying---"YOU GET WHAT YOU PAY FOR."
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