Joe,
I made up a small manifold using some misc.
fittings. You will need a 1/8” NPT port for the sensor, one for a
gauge, and a third one with an air chuck fitting that connects to your air
compressor. Use the air compressor regulator for adjustments and monitor
the gauge (I used a spare oxy-acetylene gauge). You may be able to have your
local welding supply check the accuracy of the welding gauge for little to no
charge.
For temp measurements, I used boiling
water and ice cubes for two reference points. I also used a commercial
temp gauge as a secondary reference.
Mark S.
From: Rotary motors in aircraft
[mailto:flyrotary@lancaironline.net] On
Behalf Of Al Gietzen
Sent: Monday, October 24, 2005
12:37 PM
To: Rotary
motors in aircraft
Subject: [FlyRotary] Re: It's a
Start!
Subject:
[FlyRotary] Re: It's a Start!
Making noise for the
first time is a wonderful feeling.
That fuel pressure sounds
a bit high. Should be closer to 40. Is it properly calibrated?
Calibrated?
No. That’s going to be one of my projects this week – figure
out how to calibrate all temp and pressure sensors. I know how to do the temp
sensors – any suggestions on pressure testing? Maybe something
connected to my air compressor – not sure the air compressor gauge is all
that accurate either.
I
bought some relatively inexpensive gauges from McMaster-Carr for calibration,
pressure for fuel and negative pressure (vacuum) for MP; and borrowed a
hand-held infrared temp gun to verify temps. Could not have
calibrated without these.
Running without a prop is a bit risky
– overrev can happen suddenly.
Al