Pressure washer leak

biglumber(5)December 8, 2010

Have a 3100 psi 2.8 gal or so dewalt pressure washer. Nice cat pump started leaking oil. Water pressure seems fine. Any ideas? The leak seams to be coming from under or behind the triplex where it connects to the housing.

I do not believe there was a freeze but I think my son put it away wet a couple of weeks ago. The unit does stay in the garage.


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If you live in cold climes, it would be best to store it inside a warm place. All it takes to freeze and crack the pump, is some small amount of un-drained water and 30 degrees! Also, there is probably an oil seal that has become worn, and now leaks. Caused by long storage, and little use, mostly.

    Bookmark   December 8, 2010 at 10:53PM
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Did you ever run it w/o a running water supply?

    Bookmark   December 10, 2010 at 3:03PM
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Going to have to pinpoint the leak to see if it's a flange, gasket, or housing cracked. Once you figure out whats leaking you can take the apporate action. (buy or make gasket, RTV, or JB weld)?

    Bookmark   December 11, 2010 at 6:57PM
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