I thought that as well, but Summit
has a mechanical temp gage that comes with a capillary tube. Must work
off of pressure increases inside the capillary tube as it gets hot????
I wouldn’t use it.
Bill B
From: Rotary
motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Jeff Whaley
Sent: Friday, January 15, 2010
9:07 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re:
mechanical gauges
Kevin, the
mechanical pressure gauges require a 1/8 line to pass the fluid into the gauge
– I don’t use any for that reason.
Mechanical
temperature gauges have a bulb that inserts into the fluid cavity, their output
is wired back to the gauge – they are okay if you ask me, I use one for
water temp. Jeff
From: Rotary motors in
aircraft [mailto:flyrotary@lancaironline.net] On
Behalf Of kevin lane
Sent: Thursday, January 14, 2010
11:41 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] mechanical
gauges
I was asking summit racing about their
mechanical gauges, wondering if the price included all the necessary
parts. they told me that the oil pressure and water temp hook up directly
with an 1/8th" line that I cut to fit. I questioned whether the
water temp would work that way since water wouldn't be circulating thru the
line. do mechanical temperature gauges work that way? I
assumed there must be a sealed , fixed length bulb/line arrangement that
converts temp into line pressure?
what are the pros/cons of using mechanical
vs. electrical gauges? I have some of them currently in my plane but will
need gauges to run the engine initially for ground tests, and hate to pay for
duplicates, so leaning towards the cheaper mechanical gauges.
kevin
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