Today's Message Index:
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1. 01:15 AM - Re: Embarassing Confession -- I Can't Start My Engine (Grant Piper)
2. 04:57 AM - Re: Embarassing Confession -- I Can't Start My Engine (Dale Ensing)
Message 1
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| Subject: | Re: Embarassing Confession -- I Can't Start My Engine |
I have the same engine and primer system in my RV-4. I prime for about
3 bananas when cold (below 15=B0C) and open the throttle about 1/4" or
so, then crank. My carb has the Mooney mod to enrichen it over the
original jet (can't recall mod number, but it is too rich at low
altitude now, i aggressively lean on the ground). If it is a warm day,
I'll just pump the throttle once, set 1/4", then crank. If the engine
is warm I'll open the throttle wider initially, ~1/2", and progressively
open it as I crank until it fires, then quickly back to idle. If this
doesn't work, I'll re-prime, but less than for a cold start. I always
start on the left maggie only, then switch on the right mag as soon as
it fires (I have individual toggle switches). If this doesn't work for
you, I'd check the magneto switch wiring. I stuffed mine up iniitially
and was trying to start on the RH mag only (non-impulse), and had
obvious trouble! (amazed that I managed to start it as often as I did!).
good luck
Grant
----- Original Message -----
From: r falstad
To: LycomingEngines-List Digest Server
Sent: Friday, May 30, 2008 12:43 PM
Subject: LycomingEngines-List: Embarassing Confession -- I Can't Start
My Engine
Folks,
I have about ten hours of my Phase I flying on a GlaStar with an
O-360-A1A. The engine has new rings and exhaust valves so I've been
running it hard and full rich. The engine has become increasingly
difficult to start and I want to make sure it isn't my technique before
I start pulling plugs, etc. I haven't flown in the ten years it took me
to build the airplane and my total time in that time (not including the
ten hours in the GlaStar) has been about 14 hours of recent recurrency
training in other people's airplanes.
I've used the normal start (full rich and throttle cracked about 1/4"
inch) but it doesn't want to fire. I've also used (sparingly) primer
for a couple of seconds (my primer is electric to cylinders 3 & 4). The
problem is worse when the engine is hot (and it's already hot outside
here in central Texas -- 85 to 95 degrees).
I've also used the flooded engine start (mixture at idle cut-off and
throttle full forward) when the engine wouldn't start with the normal
technique. At least this was the technique I used years ago in an
injected Mooney for hot starts.
How can I tell if it's not getting enough fuel, too much fuel, or if
my plugs have fouled because of a too rich mixture? I have been leaning
the engine when taxiing.
Best regards,
Bob
Message 2
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| Subject: | Re: Embarassing Confession -- I Can't Start My Engine |
Is it carbureted or injected?
----- Original Message -----
From: r falstad
To: LycomingEngines-List Digest Server
Sent: Thursday, May 29, 2008 10:43 PM
Subject: LycomingEngines-List: Embarassing Confession -- I Can't Start My
Engine
Folks,
I have about ten hours of my Phase I flying on a GlaStar with an O-360-A1
A. The engine has new rings and exhaust valves so I've been running it har
d and full rich. The engine has become increasingly difficult to start and
I want to make sure it isn't my technique before I start pulling plugs, et
c. I haven't flown in the ten years it took me to build the airplane and m
y total time in that time (not including the ten hours in the GlaStar) has
been about 14 hours of recent recurrency training in other people's airplan
es.
I've used the normal start (full rich and throttle cracked about 1/4" inc
h) but it doesn't want to fire. I've also used (sparingly) primer for a co
uple of seconds (my primer is electric to cylinders 3 & 4). The problem is
worse when the engine is hot (and it's already hot outside here in central
Texas -- 85 to 95 degrees).
I've also used the flooded engine start (mixture at idle cut-off and thro
ttle full forward) when the engine wouldn't start with the normal technique
. At least this was the technique I used years ago in an injected Mooney f
or hot starts.
How can I tell if it's not getting enough fuel, too much fuel, or if my p
lugs have fouled because of a too rich mixture? I have been leaning the en
gine when taxiing.
Best regards,
Bob
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