For our Aztec... and it's worked 100% of the time for previous and current
owners... honest
Throttles full open
Mixtures full rich
Electric pumps on JUST until you see FF register then quickly off, mixtures
full lean, throttles 1/4" open... quickly!
Immediately crank, watch, and listen
It will crank quickly at first, then start to slow.. as it slows be ready...
the engine is just about to fire
When it fires, immediately richen mixture no more than 1/2 rich... 1/3 is
probably better, remember everything is HOT, no need for a ton of fuel!
Hand quickly goes back to throttle to juggle if the engine stumbles.
Remember once it catches and you richen the mixture, your engine driven fuel
pump is pumping fuel. Don't let it flood your engine only to have it die
but now in a flooded condition.
The goal is to NOT flood it. Once you do, you sit and wait. If you prime
it very little, you have a second chance to repeat the procedure. If you
prime it too much, you have to sit and wait. For our 12v battery and long
cables the flooded engine start method just takes too much out of the
battery.
POH says Throttles open, mixtures full rich, boost pumps on, crank until it
fires, throttles to idle, boost pumps off. Great way to kill a puny 12v
battery at the end of 12 feet of cable.
Jim
"Paul Tomblin" wrote in message
...
I know that hot starting IO-540s is a subject for considerable debate. I
was taught a method that I was told worked 100% of the time[1], and up
until yesterday it had. But yesterday, after flying for an hour and then
sitting in the hot sun for half an hour waiting for customs, I couldn't
restart the Lance and had to have it towed back to the tie down area.
So what would you do in that situation?
[1] Leave the throttle, mixture and prop alone from when you shut down.
Turn on the fuel pump, and crank. When it catches, quickly advance the
mixture to full, and once it stops spluttering lean it out.
--
Paul Tomblin http://blog.xcski.com/
"Zero Tolerance" in this case meaning "We're too stupid to be able to
apply conscious thought on a case-by-case basis".
-- Mike Sphar