Today's Message Index:
----------------------
1. 12:50 AM - Re: Re: Restart the engine after a flight (Max Cointe (Free))
2. 05:15 AM - Re: Restart the engine after a flight (Roger Lee)
3. 02:15 PM - Running rich (Henry Roden)
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: Restart the engine after a flight |
Hi Roger, many thanks to you and to everyone who answered.
I have a fuel tank return and an electric fuel pump. After warm the idle set
is 1600 rpm. I do use the hot start procedure with no shoke (at least
usually. For this one I'm not really sure). The carb sync should be correct
as the engine runs with no vibe whatever is the rpm. The sparkplugs have 15
hours and standard gap.
All opinions converge to a flood which could have been induced by using a
(not awared) wrong procedure and/or some vapor lock, which I already
experimented but at higher weather temp.
I will anyhow retain the process to close the fuel valve before turning of
the engine
Max Cointe
mcointe@free.fr
F-PMLH Europa XS_TriGear
Kit #560-2003 912ULS/AirmasterAP332 490 hours
F-PLDJ DynAro MCR 4S
Kit #27-2002 912ULSFR/MTProp MTV7A 1600 heures
-----Message d'origine-----
De: owner-rotaxengines-list-server@matronics.com
[mailto:owner-rotaxengines-list-server@matronics.com] De la part de Roger
Lee
Envoy: mardi 10 dcembre 2013 05:03
: rotaxengines-list@matronics.com
Objet: RotaxEngines-List: Re: Restart the engine after a flight
--> <ssadiver1@yahoo.com>
Hi Max,
As someone ask, do you have an electric pump? Are you starting with just a
single pump? Are you using the choke on the second start? What is the idle
set for (after it warms)? Do you apply any throttle during the start? When
was the last time you did a carb sync? What are your plugs gapped at?
These all play an important part and if you can fill in these questions I
would bet we can help.
--------
Roger Lee
Tucson, Az.
Light Sport Repairman - Maintenance Rated Rotax Repair Center - Heavy Maint.
Rated Home 520-574-1080 TRY HOME FIRST Cell 520-349-7056
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=415283#415283
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Restart the engine after a flight |
Carb's can be out of sync quite a bit and many would never know. If they haven't
been synced within the last 100 hrs. they are over due.
Your idle for a ULS is too low and this will add to hard starts if the throttle
is left closed to that mark. This will add to excessive vibration to if you actually
idle that low. Either set the idle up to around 1700-1800 or at least
crack the throttle when starting. I don't know what standard gap is. I get them
in shop shop from .020 to .038. The proper gap should be between .023-.027.
During the winter either .023 cold climate or .025 for the southwest where winter
climates are a little milder. Narrow gaps for cold weather and wider gaps
for hot weather. There is a possibility of a little vapor lock. Are your fuel
hoses in fire sleeve? This will not only protect you, but help a little with
heat build up on the hose and vapor production. There is a slight possibility
that you need to adjust your float level in the bowls.
--------
Roger Lee
Tucson, Az.
Light Sport Repairman - Maintenance Rated
Rotax Repair Center - Heavy Maint. Rated
Home 520-574-1080 TRY HOME FIRST
Cell 520-349-7056
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=415309#415309
Message 3
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
I have a 912 ULS in a RV-12. It has run rich from day one. Another flyer on
the field had a similar problem and he raised both needles one notch,
leaner mixture, which cured his problem.
I decided to give that a try, as well as running rich, the EGT were around
1230. The left carb. needle was set at the second notch down and I moved
that to the third notch. The right carb. was already at the third notch! I
moved that one down to the fourth notch. I have not started it yet as today
was too cold and wanted to see if there were any comments first. It seems
odd that the two needles would be in different positions as this was an
engine directly from the factory. The plugs on both sides looked the same,
a fairly light coating of black soot that was easy to remove but below that
was black color on the ceramic that was very hard to remove. Fuel
consumption has not been high, right around 5 gals./hour.
Henry
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! --
|