[AT] Sorry for the OT post...

[charlie hill]

Dick,  your last paragraph confirms what I was thinking when I was reading 
your
message.  The engine is starving for fuel under load.  When you ran it on 
both
it was getting the job done.  Try this,  run it on either gas or LP and when 
it starts to
sputter open the choke slightly and see if it improves.

Try the new carb since you have it.  As for the pump shaft, I can't help you 
with that.

Charlie

-----Original Message----- 
From: Dick Day
Sent: Thursday, July 13, 2017 9:26 PM
To: ATIS
Subject: [AT] Sorry for the OT post...

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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