[AT] Sorry for the OT post...

[Rena Glover Goss]

I suspect your problem is hydraulic and not engine related.  Check the water routing. Hot shaft on the pump would tell me there is some sort of water starvation problem.


Larry

---- 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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