"Ignoramus17028" wrote in message
...
http://igor.chudov.com/projects/powerwasher/

This is your tax dollars at work. I bought this powerwasher used from
the US military. I suspect that they wrote it off because the gas line
from the tank to the carburetor was rotten and leaking. Why else would
they write it off? If, say, the engine wore down and that was the
reason, the line would not be leaking. I replaced the line and the
engine started on the second pull. It is supposed to be a bad ass
power washer, up to 3,000 PSI, with the Briggs and Stratton 11 HP
Industrial/Commercial engine.

First Question: the engine goes faster and slower every 6 seconds or so,
maybe varying speed by 30%. Why would that be the case.

Second question: how would I regulate water pressure on this beast?
There is no obvious valve that I could touch. I think that 3,000 PSI
is serious pressure and I want to get some opinions before I start
messing with the pump. Maybe I should torque the nut on top of the
pump, shutting off bypass.

(Click on the thumbnail images to enlarge)

I suspect they wrote it off because it is twenty years old, at least the
date code on the engine indicates it was manufactured in '85.

The engine changing speed is got to be from a out of adjustment governor, or
worn linkage. Possibly a dirty carburetor or out of adjustment fuel
settings.

To adjust the water pressure back off the nuts on the relief valve. It is
the unit mounted to the side of the pump where the discharge hose comes out,
with the orange washers.
It looks to be a pretty good unit other than the obvious starter problem!
Most of these gas powered units see little use so the chances are the pump
and engine are in good shape.
Greg