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Advice on rebuilding Cat 5CP3120 Pump -
Aug 20th, 08, 07:29 PM
My foreman happens to be an expert small engine mechanic. Meanwhile we have a Cat 5CP3120 (4 gpm, 3500 psi) pump with a broken mounting tab and corresponding crack in the crankcase. Still works fine but cannot keep oil in it!
The pump, part of a BE belt drive pressure washer purchased in 2005, is said to be covered by a 5 year warranty, but somehow I have a suspicion that they may baulk at a cracked crankcase.
If this is the outcome, how difficult is it to rebuild one of these pumps? Are there any special tricks or tips? I imagine we will renew all the soft parts--gaskets, o-rings, etc. if we rebuild it. We are in the dark on some things. For example, we have no guide on torquing the piston rod bolts. I have not been able to find a manual other than a parts diagram for this unit.
Any bits o' wisdom most welcome!
Gary Kellogg
CJ's High Climbing Services
Portland, OR 503.228.9278
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