The series 4 had cooling problems as the water

traveled through the

engine too fast, there is a vast difference in

output hp and the series

6

of mine runs cool even in high temps over high

speed hours of running.

The aluminum water pumps on series 4 and 5

are an after market supply

and cost around $90 Aus.
Regards Don

Sure is a bargain on those Aluminum aftermarket

pumps.  Only US source I saw

wanted $500.00 for an aluminum pump cartridge.  I

wouldn't mind having one

of those series 4 jobs.  Anyone else interested?

Tracy Crook
tcrook@rotaryaviation.com
www.rotaryaviation.com

I'm interested.
Bulent

Me too!
M. Steitle

I think I'm am too.
  Tom Webber

Looks like there would be a market for a lighter water pump cartridge.
Should not be all that hard to make. Not for $90 AUS of course.

Paul Lamar
 
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