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post #1 of 3 Old 04-01-2008 Thread Starter
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Perkins Raw water pump

I just replaced the impeller on our 4-108 every thing is good except I get 2 to 3 drops a minute out of the pump shaft weep hole behind the impeller housing. I did not see a shaft O-ring when I pulled the old impeller. I know it needs to come off for rebuild, my question to anyone is will raw water work its way to the engine block past the raw water pump shaft bearings? Will these drips be isolated from the crank case?

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post #2 of 3 Old 04-01-2008
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The weep hole will be sandwiched between 2 O-rings.

You have failed the outer one.

If the inner one gets tired, the oil level will rise and will get a mustard colour.

It happened to my olde Volvo.

Keep checking the oil level and colour.

I bought a new Jabsco pump, back in 1993, and it still is fine.
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post #3 of 3 Old 04-01-2008 Thread Starter
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Thank you

Thank you for the info I thought that is what happened. I did not notice any water dripping from there last year. I am going on the hard for 2 weeks I will re-build it then.

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