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I suppose I could change out those wires.
I would have to try and find out how the little circuit goes that Tracy has designed for
the Renesis sensor. Does anybody have any info on that circuit quick at hand?
Bill B
From: Rotary motors in aircraft
[mailto:flyrotary@lancaironline.net] On
Behalf Of Ernest Christley
Sent: Wednesday, January 09, 2013
12:48 PM
To: Rotary
motors in aircraft
Subject: [FlyRotary] Re: Aeroquip
hose changed to hiccup
The timing sensor thingy. "Variable Reluctance" sensor.
On Jan 9, 2013, at 12:20 PM, Bill Bradburry wrote:
I am currently at a loss as to what a “VR
sensor” would be??
B2
From: Rotary motors in aircraft
[mailto:flyrotary@lancaironline.net] On Behalf
Of Ernest Christley
Sent: Wednesday, January 09, 2013
9:38 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Aeroquip
hose changed to hiccup
A problem that mimics a poorly wired VR sensor, but
-only happens occasionally,
-with various levels of "response"
Bill, if you haven't done so already, I would suggest changing the
wiring to the VR sensor completely. It sounds to me like a textbook
example of the worst sort of electronic malfunction you can have…an intermittent
open. You'll never find it under normal test conditions, and it will
manifest at the most inopportune times. The only way to completely rule
it out as a failure scenario is to completely replace the circuit path.
On Jan 8, 2013, at 11:42 PM, Bill Bradburry wrote:
No, I have the 2.85 gearbox. I have
the MT electric prop, so I fly WOT and use the prop to govern the engine
speed.
I have changed the plugs with no
effect. The mixture is fine when this is happening. Fuel pressure
also. I had an incident once on take off like you describe where the
plane was backfiring like crazy just after I lifted off. I had the
mixture too rich. I dialed it back and everything smoothed out.
This is different. It doesn’t really backfire. It is a thump and it
jerks the engine and plane. You can hear and feel it. It seems to
be a single thump and it has varying degrees of violence. Some are just a
little miss and some are so bad it shakes everything. These are less
frequent, but they are bad enough that I don’t think they are good for the
PSRU, prop, or engine mount.
That is why I have been bugging Tracy
about the change for the EC-2. I have my fingers crossed that this will
fix it. :>)
Bill B
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