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1. 12:40 PM - Re: partial power loss (Jorgen Nielsen)
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| Subject: | partial power loss |
--> L29-List message posted by: "Jorgen Nielsen" <jorgen.nielsen@mweb.co.za>
Agree it is not acceleration valve, that is part of unit bypassed by
isolation valve.
Engine about 100 hours remaining.
> -----Original Message-----
> From: owner-l29-list-server@matronics.com
> [mailto:owner-l29-list-server@matronics.com] On Behalf Of zach mcneill
> Sent: 10 May 2005 04:18 AM
> To: l29-list@matronics.com
> Subject: RE: L29-List: partial power loss
>
>
> --> L29-List message posted by: "zach mcneill" <n777ze@comcast.net>
>
> Do not agree with the acceleration valve. If isolation valve
> did not solve problem suspect fuel flow problem. How many
> hours are on the airplane?
>
> Z
>
>
> owner-l29-list-server@matronics.com
> [mailto:owner-l29-list-server@matronics.com] On Behalf Of
> Ernest Martinez
> To: l29-list@matronics.com
> Subject: Re: L29-List: partial power loss
>
> --> L29-List message posted by: Ernest Martinez <erniel29@gmail.com>
>
> Either that or a dirty fuel filter.
>
> Ernie
>
> On 5/7/05, Jorgen Nielsen <jorgen.nielsen@mweb.co.za> wrote:
> > --> L29-List message posted by: "Jorgen Nielsen"
> <jorgen.nielsen@mweb.co.za>
> >
> > Today I experienced partial power loss. Had work done on
> the engine,
> > and took her up for the test flight.
> >
> > All indications normal, engine run-up OK. Took off allright,
> > levelling off downwind all indications still normal but I
> kept having
> > this nagging feeling that power was down a bit - based on levelling
> > off and acceleration in the circuit. Went to 100%,
> acceleration was
> > fine. Turned cross and then onto final for a flypast at
> 1500ft, seeing
> > the runway in front could not resist a little dive and "runway
> > inspection". Was re-cleared by ATC to 1000ft, zoomed up,
> pushed level,
> > glance at instruments, 60% on the tacho. I got the uh-oh feeling.
> > Confirmed throttle fully forward, closed and re-opened, nothing,
> > closed throttle, isolation valve on, throttle slowly forward, rpm
> > started picking up. By this time I had turned for rwy, called atc,
> > decided I was too close & high for rwy I had just passed and
> > positioned for a glide approach to a cross runway.
> >
> > Engine was surging, I reduced rpm, felt like everything had
> a 2 second
> > delay.
> >
> > Landed fine. Engine was still running so taxied back. At idle,
> > without touching throttle, engine rpm would drop, then
> surge to 50%,
> > then drop, then back up again, etc.
> >
> > Ideas? To me it would seem to be the acceleration valve.
> >
> >
> >
>
>
>
>
>
>
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