[AT] Sorry for the OT post...

[Charlie V]

Dick,

Agree with Larry.  Mine (smaller unit than yours) will load the rngine and
not spray after fairly long periods of non use.  I would guess some type of
valves are in the pump.  My speculation is either a valve sticks or the
punp is air bound.  I normally keep squeezing the spray handle quickly and
repeatedly unil spray begins to work as it should.  As you probably know,
running the pump without water flo can quickly damage the pump from
overheating.  Good luck.

Charlie

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On Thu, Jul 13, 2017 at 9:26 PM, Dick Day <dickday0 at gmail.com> wrote:

> I'm desperate.  Last year I bought a fairly large power washer.  4200psi
> 3.5gpm.  It has a 389cc gas engine. It ran great, we used it a lot.  In the
> Fall, I removed the pump and stored it the heated shop for the winter.
> Over the winter, I converted it to also run on LP.  In the dead of winter,
> I wheeled it outside and it fired right up.  I put it away until the
> spring.  I put the pump back on and decided to clean the siding on the back
> of the house.  It started right up. The second I squeeze the trigger, it
> runs really bad.  Let go of the trigger and it's fine.
>
> I put some gas in it and now it also runs really bad when engaging the
> pump.  If I remove the pump, it starts and runs great on both LP and gas.
>
> The LP conversion consisted of removing the air filter, installing longer
> bolts and mounting an LP collar between the carb and the air filter.
> Nothing was modified.  I've done several LP conversions and they all run
> way better on LP. After a few years, the pistons look almost new.
>
> The company, Champion, has been fantastic.  They do not discourage their
> customers from converting to LP.  The tech I have been working with says
> that he and the others in his office "hate" to see engines running on gas.
>
> So, it seems as though the pump might have gone bad sitting in the box over
> the winter.  Not likely.
>
> Today, I pulled the pump off and wheeled it outside and fired it up on both
> LP and gas.  No problems.
>
> I did notice that the pto shaft that the pump attaches to was so hot I
> could not even touch it.  Is this normal? Does heat simply get transferred
> through the pto shaft?
>
> As I said, the company has been fantastic to work with. They sent me a new
> carb and even a new pump (which I have not tried yet).  I'm trying to see
> why the pto shaft is so terribly hot.
>
> Is this normal?
>
> Thoughts?
>
> Thanks
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