MAENLD, is a military version of an AENL. It
is a "Heavy Duty" engine, as designated by the Mfr.. The "M" prefex is "Military, "D" suffex is
for heavy duty, and means Stellite valves and
hardened valve seats. Such a configuration is OK
for burning non leaded gas.AENL engines were rated at 9.2 hp at 3600 RPM, though you"ll get
longer life if you don"t run it that fast. An ex Wisconsin Motors employee once told me that 2800 RPM was "Best". Your engine has Timken roller
bearings, and an oil pump.If it hasn"t been
changed, your engine will have a military radio
interference sheilded magneto, shielded metallic
covered spark plug wire, and a special "Military"
sheilded spark plug. If you have magneto,(no spark) problems, standard points, condenser and
coil for a WICO, or, Fairbanks-Morse, magneto
will fit,,,whatever brand yours is. A standard civilian magneto, and plug will fit also, Parts
are readly available, NAPA head gasket is(Fel-Pro) #7686S, complete gasket set is #FS7686S-1
Valves and piston rings are still available from
NAPA auto parts. It should have a Zenith Carb,
#0-12235, 12236, 12375, or 12522, and the NAPA
carb kit # 2-1565 fits all of those numbers.
Get yourself a Wisconsin owners and parts book.
Or search around in www.wisconsinmotors.com and
you can download a free parts book. Wisconsin
motors is still very much in business, and you
can get parts from distributors listed in that
web site, but they seem to think that they"re
gold plated, and are very expensive. If you have
the Wisconsin parts numbers you can find lot of parts on the web, One other thing---oil, the Wis.
owners book lists lots of oil viscositys for
different operating temperating..Jungle to Arctic
I have lots of Wisconsin engines, and use 10-30
in everything, with no problems