Favorite engine to drive a #4 blower?

Becker

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Oct 8, 2006
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Becker
Putting together another TM.

We rebuilding a frame blower and pump I bought. ( engine I think is toast )

Going to heat it with Propane, remove all heat exchangers. ( heat exchangers I think are toast )

I did this with another.. Used a Honda Gx620.. 20hp...

Was thinking of the Honda GX630 for this one.
But, interested in you thoughts.


BTW, ,I get pretty good heat with the other, and pre heat the mix tank with a blower heat exchanger.
Plan on doing the same on this one.
 

Jamesh921

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James
I'd go with the 25hp Kohler. It's what drives my Powermatic. Strong engine - great longevity.
 

John Watson

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I got a 3cyl water cooled Kabota with a #4 blower frame and waste tank (Got the whole machine) Way less than 3000 hrs since rebuild Its proChem Blue $1500 as is 2500 and Ill start it for ya Been on the shelf for over 6 yrs, don't know condition of Hex's
 

Ron Werner

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Ron Werner
my 25 propane Kohler is running fine after 1300hrs, little oil leaking but nothing major
 

dgardner

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Dan Gardner
At 15" Hg and 3600 RPM, a 45 blower requires 14.4 hp, and a 47 needs 19 hp. A 3 gpm 1200 psi pump will need another 2.5 hp on top of that, according to the spec sheets.

The GX630 is rated 20.2 net hp, too small for the 47, and pushed pretty hard even for the 45. I'd do as already mentioned and go with a 25 hp engine. It will live a lot longer.

The GX620 is actually rated 20 hp MAX, with recommended operating hp of 18.
 

Larry Cobb

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Larry Cobb
Becker;

My choice would be the new 34HP Kohler Command Plus.

It has 200 hour maintenance intervals . . .
with the larger air filter, oil cooler and large oil capacity.

Torque levels are great.

We used to use Honda 24HP, but now favor this engine.

Larry
 

Jay D

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Oct 9, 2006
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Jay D
18hp can push it, but a 20+ hp will work better. Kohler, Honda, briggs in that order for heat and preference, opposite order for fuel economy.(briggs, honda, kohler). If no heat exchanger then a personal choice. Might be easier to stick to what you already have on the machine so it is a bolt on.
 
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