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Well, I think I can take partial credit by saying
something {:>) was causing the reluctor/hall effect sensor to trigger at
the wrong time or perhaps twice as often. The ferrous 4130 would certainly
cause the sensor to trigger erratically by interfering with the magnetic field
of magnet.
But, must admit - that would be a hard one to
find.
Ed
----- Original Message -----
Sent: Saturday, September 15, 2007 1:56
PM
Subject: [FlyRotary] Re: One for the
smart guys
Ok, look all right on the oscilloscope within the range
and setting that you would expect to look at/with - implies that you found
something outside of that range. So some sort of sporadic signal
occurring at a higher/lower periodicity (I would pick higher) than
expected. I am not familiar with the Renesis CS pickup but could
it have been something causing the reluctor(hall effect?) sensor to trigger at
the wrong time or perhaps twice as often???
Ed
----- Original Message -----
Sent: Saturday, September 15, 2007 2:39
PM
Subject: [FlyRotary] Re: One for the
smart guys
I can't give away the answer but I can tell you it
was not obvious when looking at the signal with an oscilloscope. At least
not in the range and setting used to trigger the CAS signal.
Bobby
Ed,
You are getting closer when you stated that it must be erratic
ignition. (I wish I had someone to give me hints). Yes, the
ignition timing was too far advanced, but retarding the timing didn't
correct the problem. The coils are LS1 units, 6 ea, so any
individual coil isn't firing any more often than on a 2-rotor.
So, what's causing the erratic ingition? That's the question.
Mark
On 9/15/07, Ed
Anderson <eanderson@carolina.rr.com>
wrote:
Hey, No Fair! Mark. Most of us do
not have a Renesis shop manual. But, lets see the old CS had three
wires, the new one has two wires - I get it - there is a wire missing
{:>).
So it sounds like the problem was
indeed ignition - well, its almost always either fuel or spark
causing a problem. So if fuel is more or less ruled out it defaults
to ignition. It probably wouldn't be a rev limiter as they simply
cut out above a certain rpm. So either your ignition timing somehow
was off at higher rpm (too much advance?) or else your ignition was
erratic in its firing (such as exceeding the capability of the coils to
recharge between firings - unlikely in this case).
But, without a shop manual to give me more insight,
I must say I'm out of ideas.
Ed
----- Original Message -----
Sent: Friday, September 14, 2007
10:52 PM
Subject: [FlyRotary] Re: One for
the smart guys
Now Rusty!!! That's too obvious. ;-)
OK, another hint... I got a hint of what might be causing my
problem from the ignition section of the Renesis shop manual.
Mark
On 9/14/07, Russell Duffy <rusty@radrotary.com
> wrote:
OK, I'll give you a hint... it was related to my decision to
change over from the original CAS to the Renesis CAS. I got
that bright idea from last year's rotary get together at
Tracy's.
I've got it. YOU were
the problem :-)
Rusty
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