[SPAM] Re: Re: YS140 DZ

[Don Szczur]

I had an interesting experience at the NATS. The 160 DZ engine was really
rich on the low end and would not run much under half throttle without
loading up and quitting (was fine in the air though).  After changing a glow
plug with a new one, the engine idled fine during initial run-up and sound
checks during finals.

Don
----- Original Message ----- 
From: "Terry Brox" <tbrox at cox.net>
To: <discussion at nsrca.org>
Sent: Friday, July 30, 2004 12:48 AM
Subject: Re: [SPAM] Re: Re: YS140 DZ


> If it acts up again, I will try the same thing. Let me know of your
pressure
> findings. I have really enjoyed my DZ. I have had no problems until now. I
> have about 9 cases of fuel through this engine. Good luck, Terry
> ----- Original Message ----- 
> From: <jivey61 at bellsouth.net>
> To: <discussion at nsrca.org>
> Sent: Thursday, July 29, 2004 10:20 PM
> Subject: [SPAM] Re: Re: YS140 DZ
>
>
> > Terry
> >  The symptoms were 4 deadsticks at the nats.It would run half flight and
> quit in level, at low throttle on downline or wherever it wanted to.For 3
> weeks it ran perfect.Monday the first flight was good and second it seemed
> like it was lean. It was down on power. All I did was clean the pump and
> reassemble it and the pump high and low adjustments are different than
> before. It seems to be ok but I need to fly it to make sure.
> > When I get it running and setup again I 'm going to put a pressure gauge
> on the pump output side and see what the pressure should be for idle and
> high speed. Then I will have a benchmark to check it by.I have had
problems
> with this engine since day 1.After 6 flts the main bearing was replaced by
> Rich.
> >
> > Jim Ivey
> > Jim Ivey
> > >
> > > From: "Terry Brox" <tbrox at cox.net>
> > > Date: 2004/07/29 Thu PM 10:54:24 EDT
> > > To: <discussion at nsrca.org>
> > > Subject: Re: Re: YS140 DZ
> > >
> > > Hi Jim,
> > >          What were the symptoms? I had some problems with mine running
> lean
> > > on the low end.  I just got it running good again, but only after
> turning
> > > the pump in 3 1/2 turns. I flew 4 full flights including running out
of
> fuel
> > > and not a hiccup. I am still concerned what changed though. I checked
> the
> > > pump as described by Richard and it is ok (checking the side play of
the
> > > pushrod). Anyone else have this problem.
> > > PS all fuel lines, foam clunk, and filters are ok.
> > > ----- Original Message ----- 
> > > From: <jivey61 at bellsouth.net>
> > > To: <discussion at nsrca.org>
> > > Sent: Thursday, July 29, 2004 7:49 PM
> > > Subject: Re: Re: YS140 DZ
> > >
> > >
> > > > Earl
> > > >  After taking the pump apart again I find that the springs are shown
> > > right, it is the pump valves that are shown reversed.Each valve should
> be
> > > shown 180 deg so that the prong part mounts into the springs. This is
> the
> > > way I had the valves last night and the engine ran ok.When I took it
> apart
> > > the first time the whole inside of the pump had smoky looking crude in
> it.I
> > > filter 2 times so I don't know where this came from.
> > > > Anyway ,it appears to be running again. Thanks
> > > >
> > > > Jim Ivey
> > > > >
> > > > > From: "Earl Haury" <ehaury at houston.rr.com>
> > > > > Date: 2004/07/29 Thu AM 10:06:44 EDT
> > > > > To: <discussion at nsrca.org>
> > > > > Subject: Re: YS140 DZ
> > > > >
> > > > > Yup - the drawing is backwards. The spring goes to the side with
the
> > > > > machined X. (Spring away from engine on top - toward on bottom.)
> > > > >
> > > > > Earl
> > > > > ----- Original Message ----- 
> > > > > From: <jivey61 at bellsouth.net>
> > > > > To: <discussion at nsrca.org>
> > > > > Sent: Thursday, July 29, 2004 7:57 AM
> > > > > Subject: YS140 DZ
> > > > >
> > > > >
> > > > > > Hi all
> > > > > > Can someone tell me if the parts breakdown on the 140DZ pump is
> > > correct. I
> > > > > am speaking of the directions the pump valves are shown.I turned
the
> > > bottom
> > > > > one reversed to way it is shown and the eng. runs.
> > > > > >  Thanks
> > > > > >  Jim Ivey
> > > > > > P.S a dirty pump cost me at the nats.
> > > > > >
> > > > > > =====================================
> > > > > > # To be removed from this list, go to
> > > http://www.nsrca.org/discussionA.htm
> > > > > > and follow the instructions.
> > > > > >
> > > > > >
> > > > >
> > > > >
> > > > > =====================================
> > > > > # To be removed from this list, go to
> > > http://www.nsrca.org/discussionA.htm
> > > > > and follow the instructions.
> > > > >
> > > > >
> > > >
> > > > =====================================
> > > > # To be removed from this list, go to
> http://www.nsrca.org/discussionA.htm
> > > > and follow the instructions.
> > > >
> > >
> > >
> > > =====================================
> > > # To be removed from this list, go to
> http://www.nsrca.org/discussionA.htm
> > > and follow the instructions.
> > >
> > >
> >
> > =====================================
> > # To be removed from this list, go to
http://www.nsrca.org/discussionA.htm
> > and follow the instructions.
> >
>
>
> =====================================
> # To be removed from this list, go to http://www.nsrca.org/discussionA.htm
> and follow the instructions.
>
>


=====================================
# To be removed from this list, go to http://www.nsrca.org/discussionA.htm
and follow the instructions.