Al Gietzen wrote:

My 20B came with a 4-port injector/metering pump from a 13B with three ports
feeding the 3 rotors and one port blocked.  The pump began leaking (dripping
out around the adjustment lever shaft) during the dyno runs; and then
continuing to get worse as the pump finally stopped pumping after a total of
maybe 4-5 hrs operation.  The replacement pump pumps very well, but
immediately began showing some leakage.

I don?t know the outlet plumbing of the pump, but it is a positive
displacement from the plunger, and as metering pump I?m thinking it may be
setup for positive flow to each port; so blocking a port may be the cause of
the leakage and failure.

Anyone have some input on this?

Al

That is true Al. I don't think you should mess around trying to adapt
a 13B pump to a 20B. The most 13B pumps uses TWO hoses to feed oil to ONE rotor.
That means you will not get enough oil only using ONE hose for each rotor.

I think you should mix the oil with the fuel and forget the pump. 

Paul Lamar
 
The Rotary Engine NewsLetter.  Powered by Linux.
ACRE NL web site. http://home.earthlink.net/~rotaryeng/            
Copyright 1998-2004 All world wide rights reserved.