All,
I misspoke on my last posting. I meant to say I had used avgas (100 LL)
fuel since the beginning.....and had 300 hours on the engine when the crud
in the carburetors began. I've since switched to mogas. I don't know
whether one type of fuel or the other contributes more or less to crudding.
The factory authorized Rotax repair shop here in Florida told me that carb
crud is a fairly common problem. Fortunately, it won't cause any engine
stoppages in flight, but simply causes hard starting problems. I guess my
suggestion is, if you begin to have starting problems, and have tried all
the usual "easy" fixes, then think about rebuilding the carbs.
Garry Stout
----- Original Message -----
From: "Europa Aircraft" <europa@gate.net>
Subject: RE: Europa-List: 914 Staring tips
>
> Fergus,
>
> How much you fly has a lot to do with it. If the airplane is flown
weekly,
> then likely the carbs will stay clean, however, the "crud" happens with
> mogas when they sit for a month or two without running. Our
demonstrators,
> built in 2000, never had dirty carbs because they are constantly flown.
>
> Please don't use that as an excuse to use 100LL all the time though.
100LL
> has a whole other set of evils that are worse if used more than 30% of the
> time.
>
> So - if it sits a lot, and is becoming hard to start, then the logical
thing
> to do would be to clean the carbs at that point.
>
> Happy Building!!
>
> John
>
> -----Original Message-----
> From: owner-europa-list-server@matronics.com
> [mailto:owner-europa-list-server@matronics.com]On Behalf Of Fergus Kyle
> To: europa-list@matronics.com
> Subject: Re: Europa-List: 914 Staring tips
>
>
> From: "Garry Stout" <garrys@tampabay.rr.com>
> To: <europa-list@matronics.com>
> Subject: Re: Europa-List: 914 Staring tips
<garrys@tampabay.rr.com>
> | ----- Original Message -----
> | From: "Paul McAllister" <paul.mcallister@qia.net>
> | > I am sure that this has been covered before. I find mine difficult to
> | start when cold. Warm starts are instant. Is there an optimal choke /
> | throttle setting ?
> |
> | Paul, I'm sure each case may be different as regards cold starting
> problems
> | on the 914. I replaced my battery, changed out the spark plugs, tried
> every
> | combination of choke and throttle, and even sprayed some "starting
fluid"
> | into the intake tract.........all to no avail. The engine would turn
over
> | just fine, but would show no signs of ignition. Ultimately it turned
out
> to
> | be "crud" in the carburetors. I had been burning mogas for 300 hours or
> so.
> | Upon rebuilding the carbs, the engine now starts instantly, regardless
of
> | temperature. | Garry Stout|
>
> Cheers,
> ...ben reading the mail and collecting all this starting
lark -
> 'specially the carb 'crud' and determined Iw ill clean carbs as a
recurring
> task. In regard to the amount of mogas used, what is the concensus as to a
> decent interval for such toil?
> Ferg
> A064
>
>
|