Why does my water pump keep leaking? - Hemi Truck Club
 
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Old 01-09-2020, 12:11 PM   #1
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Why does my water pump keep leaking?

So back in 2013 I believe I drove down to Keithís, him Stu an I did a cam swap on my truck. It had between 86-87k miles on it at the time with what I believe was all original everything(engine wise) so when we did the cam swap we replaced the chain tensioner, chain, an waterpump. In the first yr - yr an a half the waterpump started to leak so I replaced it with an Oem pump. Yr later it started leaking so I drove it about another yr an replaced it. An again, an again.. trucks at about 134k miles now an doesnít get driven much unless my beater decides to be a piece of **** too.

Is there something Iíve been doing wrong or missing? Or do I have bigger problems? It does kind of feel that the trucks just plain worn out or tired.

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Old 01-09-2020, 12:23 PM   #2
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My guess is bad luck... even if you are supercharged with high belt tension, I would think your accessories would have bearing issues before the water pump. I would get a lifetime warranty so if it conrinues going out you don't have to keep buying one... lame but the best I can do...
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Old 01-09-2020, 02:28 PM   #3
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I got nothing.
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Old 01-09-2020, 03:08 PM   #4
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Seems odd. OEM should last even sitting. Where does it leak from? The pulley or the gasket itself?
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Old 01-09-2020, 05:40 PM   #5
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The gasket.
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Old 01-09-2020, 09:57 PM   #6
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The gasket sadly is a very poor design. It is common for them to leak. Main thing is when putting it in don’t rub it in push it in. Rubbing it in stretches it out and makes it thin in spots. The dealer gasket is the best gasket out. The felpro one is junk.
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Old 01-10-2020, 03:03 AM   #7
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Check for pitting on the gasket sealing area. Add some RTV to the rubber gasket and it will never leak again.
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Old 01-16-2020, 06:17 PM   #8
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Quote:
Originally Posted by Ghost03hemi View Post
Check for pitting on the gasket sealing area. Add some RTV to the rubber gasket and it will never leak again.

Added RTV to my last swap out, and it ain't leaked since !!
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