[MRCA] PU-181 Generator Fuel/Lube

[Chris Bowne]

Indeed it is! Rob may have hit the nail on the head...it gets damp in the garage here in the summer where mine is stored. Still looks shiny new though!

Sent from my iPhone

> On Apr 15, 2014, at 22:44, mac <w7qho at aol.com> wrote:
> 
> Chris,
> 
> That the same -162 yo got from me way back when?  The one I kept still going strong but a second unit I dug up out here missing spark same as yours.  Haven't dug into it yet....
> 73,
> 
> Dennis D.  W7QHO
> Glendale, CA
> 
> ************
> 
>> On Apr 15, 2014, at 5:05 AM, Christopher Bowne wrote:
>> 
>> BTW, thanks for the source info on the Jacobsen engine pedigree..that info will come in handy to me , my PE-162 has a no spark condition at this point, might need a magneto and or a points condenser.  I have the spares kit it came with but after 60 years, no guarantee a magneto or condenser will be good.  
>> 
>> 
>> From: Chris Bowne <aj1g at sbcglobal.net>
>> To: Tim <timsamm at gmail.com> 
>> Cc: Military Radio Collectors Association <mrca at mailman.qth.net> 
>> Sent: Tuesday, April 15, 2014 7:12 AM
>> Subject: Re: [MRCA] PU-181 Generator Fuel/Lube
>> 
>> The antique engine guys on the smokestak  forum might have some good advice on this.  I have run 16/1 mix in my GRC-9 PE-162 no problem using current manufacture 2 cycle oil.  Great multi tasking genny...it's a genset AND a mosquito fogger!
>> Sent from my iPhone
>> 
>>> On Apr 14, 2014, at 15:38, Tim <timsamm at gmail.com> wrote:
>>> 
>>> OK Wise Guys - here's a question for you regarding engine oil and concentration.
>>> 
>>> The PU-181/PGC-1 is a 2-stroke gas generator rated at 300W, 240/120 VAC.  It uses a Jacobsen GE-12F engine.  The generator is designed for the PGC-1 TTY terminal but also for general purpose use.  It has a completely shielded ignition system - it is radio friendly. This same engine is also used to power the GRC-9 DC generator adaptation.
>>> 
>>> The placard on the fuel tank advises a 16:1 fuel-oil ratio.  It states to use SAE 10 weight below 32 degrees F and SAE 30 for operation above 32 degrees F.
>>> 
>>> However, the Tech Manual TM11-943 "Engine Generator PU-181/PGC-1" (US Army 1951) states to use a 32:1 fuel-oil ratio and it says to use SAE 10 lube oil, it says nothing about SAE 30 or temperature.
>>> 
>>> So regarding mix ratio, which is it?  I don't know if there were any post-1951 tech advisories that addresses this apparent discrepancy.
>>> 
>>> Comments?  Thanks
>>> Tim
>>> N6CC
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