Originally Posted by colemj
I was just going by your several postings that you and NextGen could not figure out how to either run a sufficiently large electric motor
, nor mount an engine-driven pump to it.
So it seems to me that this is not a suitable generator for your needs.
Mark - sorry I misunderstood your point, and mentioned Nov 7 that I had a pulley now figured out.
To clarify for others thinking of this:
drive is easy but the Next Gen 5.5 does not have sufficient amperage to handle the start in-rush current
on a 3 HP motor. Direct drive or a lower HP electric motor is the only way if one is to use this genset
I have found that Kubota makes 2 front pulleys for this engine. The standard Kubota PN 16851 is the one that Next Gen uses, and there is another with an integral gear
belt. I have the drawing for 16851-74282
I could not find a 12V clutch
for the Kubota gear
belt pulley and the only one I can find has a 7" A belt pulley. Available in single
or double sheave - single will work for the pump I am using at 900 psi max output.
Gearing is important to turn the General watermaker pump at 1750 RPM
and an engine speed of 2800 RPM
dictates a 107mm (4.375") engine pulley.
I never did find out the diameter of the Kubota gear belt pulley, and gave up when I could not find a suitable clutch
. IF the diameter(s) is correct, one could always slip the belt on and off using a spring tensioner as suggested by another member
, but I wanted it easy while the engine was already running
I have now designed such a pulley for the Kubota 16851 front engine pulley. If anyone wants one I can get more machined now at reasonable cost here in Thailand
, or will email
you the drawing. This is off to the machine shop today or tomorrow so speak up now
Will post the part numbers on how to do all this later c/w drawing of the pulley