Excelleron 90

[Xwindflyer at aol.com]

In a message dated 12/12/2004 9:34:01 PM Eastern Standard Time,  
randy10926 at comcast.net writes:

I went with the Perry carb because the OS rear  mounted needle valve was 
coming off during flight.  Funny that the  Perry worked loose this afternoon and 
caused a dead stick.  Also I had  heard so much about Perry carbs, but had ever 
seen one.
 
I am using the Excelleron to learn the advanced  sequence.  Seems less riskly 
to learn on a cheaper plane than the  Focus.  Also during the winter it gets 
really muddy at the local  field.  Sometimes so muddy we have to close the 
field down for a  while.  So when we get to fly we may be a 'little' rusty.
 
At least the simulator still works.
 
Randy



 
Randy, the Perry is a fine product except the carb's plastic housing  is a 
little soft and easily deforms when tighened, causing binding of the  barrel. 
You may have discovered this already. What I have done with good results  is to 
install the carb with a little silicone RTV rubber, and only snugged down  the 
carb mounting screw. It isn't tight per se, just snug enough but still  
allows easy full barrel movement. The RTV holds it in place. This install  
procedure results in better carb mechanical function. 
 
Also, to keep it functioning (fuel metering) correctly, you may wish to  
triple-filter your fuel.  I have 3 filters on my jug and 1 in the  plane. The idle 
metering slit gets to malfunctioning easily even with the  tiniest of 
contaminant caught in there. If the carb starts to mess up, take it  apart and clean 
this critical area. It's easy: take the "c" clip off and pull  the metering 
assembly out of the housing.
 
regds
 

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