Paul--

This may be an off the wall question; however,--since 1/3 of the cooling
for the 13B is accomplished by the oil and the rest by the coolant in
the radiator and side seal of the rotor integrity is of paramount
concern, why not try putting motor oil in both the crankcase and the
"coolant system"? Oil is lighter than water.

Tom Chapman

Side water seals are no longer a problem. Particularly if you
use Teflon encapsulated silicone O-rings. Oil is not a good
coolant fluid. The heat transfer from oil to metal is not
good. I suspect it has something to do with viscosity. Bill
Schertz on here is our resident expert on this subject.

Pure water is best. Everything else is downhill from there.
Paul Lamar ...No rotor no motor.

Tom,
It's not as "out there" as you might think. Suzuki used a oil enhanced
cooling on their first GSXR 750. They had a radiator sized oil cooler,
used along with air cooling. They carried 6 qts. of oil, a lot for a
bike. I remember they required the racers to remove the beautiful mag
engine covers on the crank ends and replace them with thicker aluminum
ones because they were forever cleaning up the track after a crash! The
problem with doing this with the rotary is that the configuration of the
engine requires as much heat extraction as possible from the coolant for
best operation. As Paul already mentioned pure water is as good as you
can get! All the additives we use are for corrosion, freezeing, boilover
protection, none of them actually improve COOLING.

Bill Jepson


The Rotary Engine NewsLetter. Powered by Linux.
ACRE NL web site. http://www.rotaryeng.net
Copyright 1998-2006 All world wide rights reserved.