Honda GX 620 + AR Pump. Compatible?

Machine Repairs
1

Hello guys.
I m trying to figure out what pump will go with the Honda GX 620 QZ E3, 18.1 HP 3600 RPM, Horizontal shaft.
From what I see on Honda Newsroom it comes in multiple version

GX620
Variation QDF QXA QYA QAF1 VXA1 VXA3 TXF2
Crankshaft P.T.O. 2.91" x 1" 2.91" x 1" 2.91" x 1" 2.91" x 1"tapered shaft tapered shaft 3.54" x 1 1/8" dia.
I assume that " VXA1" and “VXA3” aren’t compatible with a hollow shaft pump. I’m left with 2x91" x 1" and 3.54" x 1 1/".

On the Annovi Reverberi at the Industry - > High Pressure Pump Catalog, they have 5 version of pumps :
N version – Solid shaft version
C version – B3-B14 hollow shaft version
D version – Gas engine hollow shaft version
E version – NEMA motor.
CR version – Pump with gas engine reduction gearbox .

Which one between C and D versions will fit on the engine Honda QDF QXA QYA ?
The TXF2 Honda version will work with C or D ?

A second question : Since a direct drive pump( my choice :4 gpm 3500/4000 psi ) runs at 3400 rpm and this engine runs at 3600 rpm, it will wear faster ?

Please consider that i m a autodidact guy with no experience in the field and I want to do build one for myself :slight_smile:

Any help will be appreciated !
All the best,
Daniel.

2

Not sure about pump selection, but if you’ve got 18hp at your disposal, I’d go for something with a lot more GPM’s.

And from everything I’ve read, Udor makes the best pumps.

1 Like
3

Thank for your input Alex.
For the moment I don’t have that Honda, i’ve chosen that engine after this formula
GPM X PSI / 1100 = HP
4 x 4000 / 1100 = 14.5

Honda GX 620 18.1 is available at one of my favorite shops and the direct drive system is easy to mount / maintain.

I didn’t heard about UDOR until now, have a great variety of pumps, direct drive and gearbox on sale on their web.
I will look into it !
Thanks for your input Alex !!!