Today's Message Index:
----------------------
1. 09:45 PM - Re: Re: Carb jet changes (Lynn Matteson)
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Carb jet changes |
Martin-
Are you really using SCAT hose directly to the carb? My instructions
warned against that, as the engine wants a nice smooth flow of air,
for the last 4 inches at least. The air must flow smoothly into the
carb because the two air sensor ports need a smooth and equal flow in
order to operate properly...or so the instructions say.
Your idle problems sound just *exactly* like mine did before I
installed the newer, and smaller, float needle and seat. Now I can
fly the plane, land, taxi to wherever on the field, and shut the
engine off....no more having to shut off the main fuel valve a
certain amount of time before I shut the engine down...no more
worrying about whether it will start when hot...just no more treating
the engine differently. Hell, with the engine operating like this, I
could rent it out as a training plane...NOT!
Maybe your leak was not as great as mine, Martin, or it evaporates
quickly (no puddle under yours). My rubber air hose to my carb, for
the carb incoming air, is a piece of truck radiator hose, and unless
it had a long-standing pool of gas sitting in it, would not leak any
fuel until it rotted away.
Lynn Matteson
Grass Lake, Michigan
Kitfox IV Speedster w/Jabiru 2200
flying w/420+ hrs
On Nov 9, 2007, at 12:12 AM, avidflyer01 wrote:
> <vegayacht@club.fr>
>
> Lynn,I also noticed that if I remove the SCAT tube which connects
> the carb to the air filter, there is some petrol sitting there (if
> the engine has just been running); I also experience some troubles
> as to idle, if I reduce power to around 800rpm the engine will
> progressively start slowing down and will eventually quit after
> some 30-45secs (as it occasionally does on final if I don't baby it
> with throttle). exhaust is definitely sooty in spite of high EGT in
> flight.
>
> I will try putting a new idle/seat; it sounds surprising, though,
> because I would expect to find a puddle of gas under the plane if
> left with a valve open - which is not the case in my plane.
>
> martin
> avid flyer STOL HH w/Jab2200
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=144710#144710
>
>
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|