[Milsurplus] Gasoline generator

Kenneth G. Gordon [email protected]
Fri, 17 May 2002 21:32:49 -0800


> PU?  Not PE-xx?  I don't think I am familiar with PU.

PU for more complexly controlled generators. I had a PU-286-G 
which is a 4 cylinder gas engined 115 VAC 5 Kw genny built for a 
radar set. Dunno which one though. Ran at 1800 RPM and used a 
thermo-syphon cooling system with a very large squirrel-cage 
blower below the "evaporation unit" Normal running temp was 212 
degrees F. Remote start and stop. Very efficient on gasoline usage. 

>  I have one of the
> PE-98(?) which is the mil version of the Kohler 2E21.  Four cylinder
> water cooled engine, looks like a miniature Jeep engine, except for the
> magneto; electric start,  rated at 2.5 KW, which it would probably
> support until the end of time.  We used to pull upwards of 5 KW peak out
> of them on field day with no apparent ill effects in the days of tube
> rigs.  I need a fuel pump diaphragm for mine, any good suggestions?

YES! Visit your local farm parts store. I'll bet you will find one there. 
Farm equipment used MILLIONS of Kohler engines.

 I did some major restoration on a PE-75 (?), in any case the 10 Kw 
generator for the SCR-399/499. Used a weird model Jeep engine 
and 2 LARGE 6 volt batteries in series to "motor" the generator to 
start it. I found ALL of the parts I needed to restore this thing at our 
local farmer parts store. Turns out that many models of combine 
use this exact engine somewhere on it. They had the distributor, 
fuel pump, plus fuel-pump repair kit, AND a starter which bolted 
straight into the PE-75 (?) engine. Also a complete carburetor, and 
flywheel.

If you can't find a fuel-pump diaphragm, you may find an exact 
replacement pump if you take yours to the farm parts dealer and 
have him do a search.

Let us know how you make out.

Ken W7EKB