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John,
One thing to check, with the fuel pump
OFF,
1. Cold, but with power on as if you were going to
run, plug and unplug each injector to see if you hear a click, it might be just
one injector stuck open (grounded)
2. Repeat with engine hot, make sure no fuel
pressure
Bill Schertz
KIS Cruiser
#4045
N343BS
Phase I testing
Sent: Thursday, May 20, 2010 9:20 PM
Subject: [FlyRotary] Tach & injectors
Bill, Bob W conferred with Tracy and they decided
to use the secondary coil wire and the tack goes to 0 when I do the coil
check. I didn't get much time to test today, I'm starting on the + side,
as it will run warmed up with the fuse pulled and the injector switches off, if
it is restarted, the fuse is in the wire to the primary and secondary injector
switches, wired to Bob W's wiring diagram. It runs normal when it is
started initially (cold) with the fuse connected and the primary and secondary
switches on and will stop by shutting off the primary and secondary
switches. Tomorrow I'll check to see if the wire is powered while cold
with the fuse out then warm the engine and see if I can determine where the
power is coming from, there needs to be a source for the current at normal
operating temperature with the fuse out which is 185 water, 167 oil.
It is on warm restart when ever thing changes and the injectors are
getting the + from some place other than the fuse.
Maybe I can test the injectors in the test mode and
see if they click off and on, or just click once and are staying on from a
continuous ground condition coming from the computer. This will need to
done at a fuel pressure of less than the 33 # fuel pressure indicated when the
engine quits with the fuel pump off and the injectors on or the engine will be
flooded. JohnD
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