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I think Tracy gets over 150 hours on auto gas, so SAG not likely. Any idea what the OAT was at the altitude you were operating? Was the engine temperature in the normal range?
I hate those type of hic-ups - but, it a miss on one chamber should take only .00166 seconds at 6000 rpm. Of course, it may have been several running together.
The two primary suspects are, of course, fuel and fire. I personally would bet on fuel being the culprit more than spark. The reason is you do have two sparkplugs per chamber on different modules. However, I presume you checked to see that both leading and trailing are still working. That old resistor in the base of the leading module of the Mazda coils failed on me and Tracy. Otherwise, can think of anything to suggest.
Ed A
----- Original Message ----- From: "WALTER B KERR" <jbker@juno.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Wednesday, January 11, 2006 5:29 PM
Subject: [FlyRotary] Re: Momentary pucker X's 3
Hi Ed,
Not exactly sure time on plugs, think about 55 hours on auto gas.
Bernie
-------------------------------
On Wed, 11 Jan 2006 15:36:44 -0500 "Ed Anderson"
<eanderson@carolina.rr.com> writes:
Using auto or 100LL? How many hours on the plugs? Doesn't sound like
SAG
but you never know. Hic-ups are subject to interpretation {:>)
Ed A
----- Original Message ----- From: "WALTER B KERR" <jbker@juno.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Wednesday, January 11, 2006 3:23 PM
Subject: [FlyRotary] Momentary pucker X's 3
> Flying around the neighborhood today and about 30 minutes into
flight
> there was a momentary hic-up. Everything on monitor looked normal,
so
> richened a tad and continued flying. About 5 minutes later, same
thing
> second verse, and then a third time. Went to full power and rich
and it
> did not repeat. No miss while descending to land or while taxing
in. Ran
> up a full static for a minute on the ground and everything
appeared
> normal.
>
> Any suggestions???
>
> Bernie, not wanting to start to Lakeland with an unknow problem!
>
> --
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