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- The joy was short-lived
because it was only a one minute run while I had the redrive drain line
disconnected. Taking the drain line off gave the first clue. No
sign that a drop of oil had ever been there. The amount of oil in the
container after the run – zippo; not a drop. I took off the feed line
and there was oil sitting in the fitting. Feeding to a container, I
ran again for less than 30 seconds, and sent more than a pint into the
container. Complete blockage inside the drive. The prospect of
removing the prop, drive and disassembly is not a happy one.
Al, something you might try
before taking the gearbox off (a pain to say the least). Its been know
for such stuff as the silicon grey sealant to plug up the drains. Yes,
unlikely that it would have plugged up the front one. But, short of
taking off the gear box you might try removing the drain fittings - just in
the remote chance they could be plugged.
Ed
Other items:
- Adjusted calibration of temp
readings to be correct at room temp, and checked response of all senders
with heat gun. All responded normally. High temperature
calibration check coming later; I’m picking up pyrometer gun from a friend
tomorrow. Some spots of flat black paint in key places should give me
a good check – ah-h-h; when I can run again. He is also giving me a
fuel pressure guage to verify FP readout.
- Checked voltage reading,
compared voltage at pin 9 connector P3 (EM2 disconnected) with readout from
EM2. Differred by 0.1 volts. For roughly a 10’ run of #22 wire
that suggests about 0.6 amps. I don’t recall the EM2 draw, but this
seems close enough
- Tried to check the O2 sensor
output using a flame from a propane torch. Nothing. I’ll
probably try again to get a voltage reading at the sensor when I can run
again. It still gives close to full scale reading no matter what
mixture setting.
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