Using check valve in YS 140DZ fuel system

[Bob Wantz]

I've run the DZ both with and without the check valve and see no ill effects
with the valve.  In fact, it may run better with the check valve as my idle
is incredible now and runs have been very consistent even with a very high
mounted (in the canopy) tank.

----- Original Message ----- 
From: "Peter Pennisi" <pentagon.systems at bigpond.com>
To: <discussion at nsrca.org>
Sent: Monday, August 30, 2004 6:08 AM
Subject: Using check valve in YS 140DZ fuel system


>
>
> Some flying buddies of mine have been having a discussion about using a
> check-valve in the fuel system to essentially stop fuel from dripping out
of
> the vent line. I have been using this system without any problems that I
> know off for some time. One of the pattern flyers I fly with is very good
> with engines and he doesn't think it is a very good idea to use the valve
in
> the DZ fuel system as the tank will always have a slight pressure build up
> inside which may result in inconsistent engine runs. I don't know about
his
> theory but I do know that all the Japanese flyers at the recent CAOCC
event
> were using check valves in the fuel system.
>
> I would be interested to hear from anyone who may have an opinion on this
> subject.
>
>
> Regards,
>
> Peter
>
>
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