|
Bob,
you can not really meassure it, unless you use a
setup intensionally looking for this particular issue. Even than, you can only
compare it to some other setup. I have gone throu quite a bit of that using my
own designed trigger finger for the single rotor, using a pickup coil from the
Mazda distributor and the Renensis CAS. On the first design, the end was at
4500RPM.
The problem is the flux change rate, which is
getting more critical at high RPM.
The safest approach is to have a hard look at the
stock installation and copy that as much a possible. Do not get closer
with any ferritic metal than in the stock installation.
I should have caught Marks problem, but I was under
the impression he was using stock installation.
The setup I am using on the single rotor is tested
up to 8k with no problem.
FWIW.
----- Original Message -----
Sent: Monday, September 17, 2007 9:36
AM
Subject: [FlyRotary] Re: One for the
smart guys
I would like to know how you figured it out? thats a tough find.
Dennis,
Nope, part of the conversion was to install the stock Renesis timing
gear. The problem has been fixed and the Renesis gear is still
there. Just in case you're wondering, the timing gear wasn't installed
backwards nor was it clocked incorrectly. Mark
On 9/15/07, Dennis
Haverlah <clouduster@austin.rr.com>
wrote:
Mark, Was the frequency of
the teeth going by the wheel too high for the CAS? Dennis
H. Mark Steitle wrote:
Bob,
While good things to check, neither of these were the cause of my
problem. At Tracy's suggestion, I changed the air gap on the CAS to
no avail.
Mark
On 9/15/07, bmears9413@aol.com <bmears9413@aol.com> wrote:
I
haven't cheated and looked at the manual.....since your gonna tell us
anyway...eventually...but problems I've had before in race cars...plug
wires running parallel to each other, and too large of air gap in the
pickup in the distributor. Close???
Bob
Mears
Supermarine Spitfire
-----Original
Message-----
From: Mark Steitle <msteitle@gmail.com>
To:
Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent:
Sat, 15 Sep 2007 7:53 am
Subject: [FlyRotary] Re: One for the smart
guys
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
Email and AIM finally together. You've gotta check out free AOL
Mail!
No virus found in this incoming message.
Checked by AVG Free
Edition.
Version: 7.5.487 / Virus Database: 269.13.21/1012 - Release Date:
9/16/2007 6:32 PM
|