Friend of mine here at SZP had classic water cooling problems
on his Rotax powered Pulsar. Back side of the rad too close
to the engine and the exhaust.

We applied the K&M curve to his air intake duct and shielded
the exhaust with SS. The two short studs you see sticking up through
the SS are sawed off SS bolts with the heads acting as spacers
between the SS sheet and the exhaust pipe. These serve to keep
the SS sheet from close contact with the exhaust pipe. The
airspace will then insulate the SS sheet from the steel exhaust
pipe hopefully.

I'll let you know how it worked next week. If this does not
work we are going to build a water manometer and get serious.
http://www.rotaryeng.net/how-to-cool12.html

Paul Lamar

Remember I have your water manometer. I'll send it back to you.

Perry

OK Perry I forgot who had it. Thanks.

Paul Lamar