Today's Message Index:
----------------------
1. 01:15 AM - Re: CJ cough/miss fire/hesitation in flight (Harv)
2. 01:49 AM - Re: Re: CJ cough/miss fire/hesitation in flight (Nigel Willson)
3. 02:49 AM - Engine missing (Richard Goode)
4. 06:29 AM - Re: Coils (Jill Gernetzke)
5. 06:29 AM - Re: Coils (Jill Gernetzke)
6. 11:18 AM - Re: Engine missing (jay-dub)
7. 06:52 PM - Re: Re: Engine missing (cjpilot710@aol.com)
Message 1
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| Subject: | Re: CJ cough/miss fire/hesitation in flight |
Thanks for the replies.
This is a Housai and we are fresh out of annual, points are cleaned and gapped,
timing set, compressions all good, one new cigar cartridge.
I've had this once before and don't associate it to above works (this is why I
think it could be a mag coil) but will check through the items raised.
It's not a particularly nice feeling when it skips for that heart beat but maybe
I'll have to fly her again to pinpoint which mag is giving out.
I'll try an increase temp run up first and see if she'll misbehave on the ground
(that would be nice)
Will update with findings.
Cheers
Harv
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=473458#473458
Message 2
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| Subject: | Re: CJ cough/miss fire/hesitation in flight |
It's not worth bothering trying to figure out which mag.
Also beware of "old" new spares. The coils deteriorate on the shelf as well
as "in life".
I replaced mine with brand new in all respects from M14P.
Regards,
Nigel Willson
Flying Instructor & Examiner | Airshow Organiser | Display Pilot
Mobile:
+44 (0)7809 116676
Email:
nigel.willson@yakdisplay.com
Web:
http://easyppl.com
http://greatbritishairshows.com
http://yakdisplay.com
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Harv
Sent: 11 October 2017 09:15
Subject: Yak-List: Re: CJ cough/miss fire/hesitation in flight
Thanks for the replies.
This is a Housai and we are fresh out of annual, points are cleaned and
gapped, timing set, compressions all good, one new cigar cartridge.
I've had this once before and don't associate it to above works (this is why
I think it could be a mag coil) but will check through the items raised.
It's not a particularly nice feeling when it skips for that heart beat but
maybe I'll have to fly her again to pinpoint which mag is giving out.
I'll try an increase temp run up first and see if she'll misbehave on the
ground (that would be nice)
Will update with findings.
Cheers
Harv
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=473458#473458
Message 3
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We have probably encountered this problem some 30 times over the years, and
although sometimes there are other magneto faults, it is absolutely
characteristic of a coil failing that the engine is fine when cold and
during climb out, and then starts missing between 20 and 30 minutes of
flight, at which stage the engine has warmed up and the heat has soaked
through to the magneto. Initially it begins with a short "stumble", but will
get worse and worse over a few hours until the engine can stop for several
seconds which does get your attention. Also, as people have noted, the
engine does not run normally on the other magneto.
The new coil is the only solution!
Richard Goode Aerobatics
Rhodds Farm
Lyonshall
Hereford
HR5 3LW
Tel: +44 (0) 1544 340120
Fax: +44 (0) 1544 340129
www.russianaeros.com
Message 4
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Group,
I have wide and narrow slot coils in stock. Contact me offlist.
Jill
M-14P, Inc.
4905 Flightline Drive
Kingman, AZ 86401
928-681-4400
www.m-14p.com
Message 5
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Group,
I have wide and narrow slot coils in stock. Contact me offlist.
Jill
M-14P, Inc.
4905 Flightline Drive
Kingman, AZ 86401
928-681-4400
www.m-14p.com
Message 6
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| Subject: | Re: Engine missing |
I had this very thing whilst delivering a Yak-52 in the UK. Needless to say, a
swift 180 followed with a return to the engineers. I was about to start the drills
when it recovered so I left the levers alone and did a forced landing pattern
back onto the field. It went a second time on the way back.
--------
CJ and Yak-52 owner
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=473472#473472
Message 7
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| Subject: | Re: Engine missing |
I had the same problem with the M-14p in my CJ. Maybe a precautionary
landing in Americas, GA. on my way to OSH, a good number of years ago. Up to
that point I had been chasing ignition problems, mags, coils, plugs, timing
etc etc. A crop duster's mechanic pen pointed the problem also instantly.
Ignition harness brake down. I had Dennis ship me an auto conversion
over night. I spent that afternoon removing the old harness (4 hours). When
the new one from Dennis arrived, It took me 4 hours to put it on, and I
continued on to OSH that afternoon. I've had very few problems since - NONE
involving the harness.
Jim "Pappy" Goolsby
In a message dated 10/11/2017 2:19:11 P.M. Eastern Daylight Time,
flyjnw@gmail.com writes:
--> Yak-List message posted by: "jay-dub" <flyjnw@gmail.com>
I had this very thing whilst delivering a Yak-52 in the UK. Needless to
say, a swift 180 followed with a return to the engineers. I was about to
start the drills when it recovered so I left the levers alone and did a forced
landing pattern back onto the field. It went a second time on the way back.
--------
CJ and Yak-52 owner
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=473472#473472
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