Hi Frans,
I believe heat is the trigger to your [ and other 914 drivers] initial prob
lem.
Can you provide us with the under cowl temps you saw during your Flight Tes
t Program ?
The numbers you witnessed in cruise, climb out and after shut down / restin
g ? I was monitoring these temps in several places inside the cowl during d
evelopment of the original 912 and 914 Installation, would be interesting t
o see how the removal of all through air flow has effected under cowl temps
. Heat from the exhaust / Turbo has to go somewhere ?
Cheers,
Nev.
-----Original Message-----
From: Frans Veldman <frans@privatepilots.nl>
Sent: Wed, 14 Mar 2012 16:40
Subject: Re: Europa-List: Rotax 914 starting problems when hot
On 03/14/2012 05:08 PM, DAVID ANDERSON wrote:
I have found, over the years, that if I run the engine taxiing in
with the fuel pumps off and then shut it down as the engine starts to
falter, that leaves the carb bowls empty.
That is a smart idea! I like this one. It should solve the problem, and
t also causes less residu to be built up in the carbs. (If fuel
aporizes some residues from the various additions remain, if the carb
s drawn empty these residues can not built up in the first place).
> Then on start-up, the carbs
are filled with fresh, cool fuel and with the techniques described,
it starts right up. I do leave the pumps off during the start and
then start them when the engine starts to falter.
I'm not sure if I understand this right. You switch the fuel pumps off
n arrival and let the engine sputter to a halt due to fuel starvation,
nd then you leave the fuel pumps still off at the subsequent start??? I
ssume that you use either one of these options but not both at the same
ime because otherwise there wouldn't be any fuel available for
tarting? Please clarify?
Frans
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