Today's Message Index:
----------------------
1. 01:28 AM - Re: Yak-List Digest: 19 Msgs - 06/04/18 (Jay McIntyre)
2. 10:16 AM - Re: CJ Mechanic needed (HobbyTown USA)
3. 01:46 PM - Re: CJ Mechanic needed (Greg Wrobel)
Message 1
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| Subject: | Re: Yak-List Digest: 19 Msgs - 06/04/18 |
Could count Chinese plug failures in 25 years on the fingers of one hand -
spread over 8 aircraft.
The only reason we changed to Dennis' automotive mod was that the harness
itself was breaking down and it was a complete pain to replace the OEM
harness,
Have to admit that while Denis's mod does a great job I would much prefer
the original on the HS-6!
regards, Jay
NZ
On Tue, Jun 5, 2018 at 6:47 PM, Yak-List Digest Server <
yak-list@matronics.com> wrote:
> *
>
> =================================================
> Online Versions of Today's List Digest Archive
> =================================================
>
> Today's complete Yak-List Digest can also be found in either of the
> two Web Links listed below. The .html file includes the Digest formatted
> in HTML for viewing with a web browser and features Hyperlinked Indexes
> and Message Navigation. The .txt file includes the plain ASCII version
> of the Yak-List Digest and can be viewed with a generic text editor
> such as Notepad or with a web browser.
>
> HTML Version:
>
> http://www.matronics.com/digest/digestview.php?Style
> 82701&View=html&Chapter 18-06-04&Archive=Yak
>
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>
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> 82701&View=txt&Chapter 18-06-04&Archive=Yak
>
>
> ===============================================
> EMail Version of Today's List Digest Archive
> ===============================================
>
>
> ----------------------------------------------------------
> Yak-List Digest Archive
> ---
> Total Messages Posted Mon 06/04/18: 19
> ----------------------------------------------------------
>
>
> Today's Message Index:
> ----------------------
>
> 1. 05:01 AM - Re: Re: Chinese rebuild engine (Jill Gernetzke)
> 2. 05:46 AM - Re: Re: Re: Chinese rebuild engine (Bob Graves)
> 3. 05:51 AM - Re: Engine Stumble on Climb Out (JON BLAKE)
> 4. 06:49 AM - Re: Engine Stumble on Climb Out (A. Dennis Savarese)
> 5. 06:56 AM - Re: Engine Stumble on Climb Out (Roger Kemp)
> 6. 08:41 AM - Air Bottle Seal (Rico Jaeger)
> 7. 09:38 AM - Re: Chinese rebuild engine (Bitterlich, Mark G CIV
> NAVAIR, WD)
> 8. 09:49 AM - Re: Air Bottle Seal (Mark Pennington)
> 9. 10:07 AM - Re: Air Bottle Seal (JON BLAKE)
> 10. 11:30 AM - Re: Air Bottle Seal (Justin Drafts)
> 11. 12:54 PM - Re: Air Bottle Seal (Rico Jaeger)
> 12. 02:43 PM - CJ Mechanic needed (Craig Payne)
> 13. 03:42 PM - Re: Engine Stumble on Climb Out (Looigi)
> 14. 04:04 PM - Re: drunken attitude indicator in CJ (Ttail)
> 15. 04:38 PM - Re: Re: Engine Stumble on Climb Out (Frank Stelwagon)
> 16. 04:38 PM - Re: Re: Engine Stumble on Climb Out (A. Dennis
> Savarese)
> 17. 07:34 PM - Re: Re: Engine Stumble on Climb Out (Sam Sax)
> 18. 07:48 PM - Re: Re: Engine Stumble on Climb Out (Walter Lannon)
> 19. 08:04 PM - Re: Re: Engine Stumble on Climb Out (Roger Kemp)
>
>
> ________________________________ Message 1
> _____________________________________
>
>
> Time: 05:01:46 AM PST US
> From: "Jill Gernetzke" <jill@m-14p.com>
> Subject: Yak-List: Re: Re: Chinese rebuild engine
>
>
> Perhaps, the packing on the wobble pump or lack thereof, is causing you
> some
> grief.
>
> Was the engine test run at the factory? Mag timing is correct?
>
> Just some thoughs/ideas.
>
>
> Jill Gernetzke
> M-14P, Inc.
> 4905 Flightline Drive
> Kingman, AZ 86401
> 928-681-4400
> www.m-14p.com
>
>
> ________________________________ Message 2
> _____________________________________
>
>
> Time: 05:46:10 AM PST US
> Subject: Re: Yak-List: Re: Re: Chinese rebuild engine
> From: Bob Graves <flibob@att.net>
>
>
> Thanks Jill. I replaced the wobble pump with new and it pumps fuel out at
> the
> carb. I have not checked the timing on the mag. I should have paid more
> attention
> to that part of the class when I was in Kingman.
>
> GiddyUp,
>
> Bob
>
> On Jun 4, 2018, at 8:01 AM, Jill Gernetzke <jill@m-14p.com> wrote:
>
>
> Perhaps, the packing on the wobble pump or lack thereof, is causing you
> some
> grief.
>
> Was the engine test run at the factory? Mag timing is correct?
>
> Just some thoughs/ideas.
>
>
> Jill Gernetzke
> M-14P, Inc.
> 4905 Flightline Drive
> Kingman, AZ 86401
> 928-681-4400
> www.m-14p.com
>
>
> ________________________________ Message 3
> _____________________________________
>
>
> Time: 05:51:54 AM PST US
> From: JON BLAKE <jblake207@comcast.net>
> Subject: Re: Yak-List: Engine Stumble on Climb Out
>
> Holy double props Sappman...
>
>
> > On June 1, 2018 at 10:40 AM doug sapp <dougsappllc@gmail.com> wrote:
> >
> > Not exactly a Yak, but has a bit of Yak dna.
> > https://www.auctionzip.com/auction-lot/lot_C5F405A9AF?
> utm_source=azemail&utm_medium=email&utm_campaign=alerts
> https://www.auctionzip.com/auction-lot/lot_C5F405A9AF?
> utm_source=azemail&utm_medium=email&utm_campaign=alerts
> >
> > On Wed, May 30, 2018 at 11:44 PM, ggtyler <ggtyler@gmail.com mailto:
> ggtyler@gmail.com > wrote:
> >
>
> Just a bit of excitement in the Yak 52TW today.
>
> Flight before last the engine did a hard stumble twice in succession on
> climb out.
> I immediately swung back towards the field, but once I pulled back from
> 2400RPM
> to 2100, it smoothed out. Gave it a few minutes, played with the throttle
> and rpm's and it did not come back. Figured it was just a fouled plug.
>
> I did a couple more hours of flying and starts/stops that day with no
> issues.
>
> Went up again today, and on climb out, 2400 RPM, hard stumble. Then
> another, and
> another, quickly turned back, pulled back to 2100 RPM, but the hard
> stumbles
> proceeded to keep happening. At one point, I was pretty sure it was going
> to
> quit running entirely. That 1.5 seconds or 2 seconds of stumbles in a row
> can
> feel like an eternity.
>
> It was running pretty badly, wife was in the back on her second flight
> ever with
> me. I was pretty darn stressed, so more focused on getting back on the
> ground
> safely than anything else. I did not think to do a mag check, but didn't
> really
> have time, as I had only just made pattern altitude by the time I was on
> downwind. I did scan through all the instruments, and all temps/pressures
> seemed
> be normal.
>
> On final, I must say, I just wanted us to be back on the ground NOW, and
> was getting
> in a bit of a hurry to get down. Realizing that stress was dictating my
> landing, I just kept telling myself "don't get in a hurry, hold it off,
> hold it
> off". Not my best landing ever, but not one I need to be ashamed of. I did
> find
> it hard to keep my legs from bouncing all over while taxing. Not often I
> get
> that much adrenaline pumping.
>
> Wife's a bit of a gear-head so knew everything was definitely not cool,
> but she
> stayed calm and didn't freak out. It's nice to have someone to hug after a
> bit
> of a scare.
>
> Dropped a text to Vladimir Yastremski (he does my annuals). That guy
> always calls
> me back, no matter what time of day. He's even on vacation right now. Talk
> about service! Diagnostics will come later, and will update here.
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=480530#480530
> http://forums.matronics.com/viewtopic.php?p=480530#480530
>
>
> ==================================
> List" rel="noreferrer" target="_blank">http://www.
> matronics.com/Navigator?Yak-List
> ==================================
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> eferrer" target="_blank">http://forums.matronics.com
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> ==================================
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> -Matt Dralle, List Admin.
> rel="noreferrer" target="_blank">http://www.matronics.com/contribution
> ==================================
>
>
> ________________________________ Message 4
> _____________________________________
>
>
> Time: 06:49:37 AM PST US
> Subject: Re: Yak-List: Engine Stumble on Climb Out
> From: "A. Dennis Savarese" <dsavarese0812@bellsouth.net>
>
>
> Could very well be the infamous magneto coil issue.
>
> A. Dennis Savarese
> 334-546-8182 (mobile)
> www.yak-52.com
> Skype - Yakguy1
>
> On 6/4/2018 8:51 AM, JON BLAKE wrote:
> > Holy double props Sappman...
> >
> >> On June 1, 2018 at 10:40 AM doug sapp <dougsappllc@gmail.com> wrote:
> >>
> >> Not exactly a Yak, but has a bit of Yak dna.
> >> https://www.auctionzip.com/auction-lot/lot_C5F405A9AF?
> utm_source=azemail&utm_medium=email&utm_campaign=alerts
> >>
> >> On Wed, May 30, 2018 at 11:44 PM, ggtyler <ggtyler@gmail.com
> >> <mailto:ggtyler@gmail.com>> wrote:
> >>
> >> <mailto:ggtyler@gmail.com>>
> >>
> >> Just a bit of excitement in the Yak 52TW today.
> >>
> >> Flight before last the engine did a hard stumble twice in
> >> succession on climb out. I immediately swung back towards the
> >> field, but once I pulled back from 2400RPM to 2100, it smoothed
> >> out. Gave it a few minutes, played with the throttle and rpm's
> >> and it did not come back. Figured it was just a fouled plug.
> >>
> >> I did a couple more hours of flying and starts/stops that day
> >> with no issues.
> >>
> >> Went up again today, and on climb out, 2400 RPM, hard stumble.
> >> Then another, and another, quickly turned back, pulled back to
> >> 2100 RPM, but the hard stumbles proceeded to keep happening. At
> >> one point, I was pretty sure it was going to quit running
> >> entirely. That 1.5 seconds or 2 seconds of stumbles in a row can
> >> feel like an eternity.
> >>
> >> It was running pretty badly, wife was in the back on her second
> >> flight ever with me. I was pretty darn stressed, so more focused
> >> on getting back on the ground safely than anything else. I did
> >> not think to do a mag check, but didn't really have time, as I
> >> had only just made pattern altitude by the time I was on
> >> downwind. I did scan through all the instruments, and all
> >> temps/pressures seemed be normal.
> >>
> >> On final, I must say, I just wanted us to be back on the ground
> >> NOW, and was getting in a bit of a hurry to get down. Realizing
> >> that stress was dictating my landing, I just kept telling myself
> >> "don't get in a hurry, hold it off, hold it off". Not my best
> >> landing ever, but not one I need to be ashamed of. I did find it
> >> hard to keep my legs from bouncing all over while taxing. Not
> >> often I get that much adrenaline pumping.
> >>
> >> Wife's a bit of a gear-head so knew everything was definitely not
> >> cool, but she stayed calm and didn't freak out. It's nice to have
> >> someone to hug after a bit of a scare.
> >>
> >> Dropped a text to Vladimir Yastremski (he does my annuals). That
> >> guy always calls me back, no matter what time of day. He's even
> >> on vacation right now. Talk about service! Diagnostics will come
> >> later, and will update here.
> >>
> >>
> >>
> >>
> >> Read this topic online here:
> >>
> >> http://forums.matronics.com/viewtopic.php?p=480530#480530
> >> <http://forums.matronics.com/viewtopic.php?p=480530#480530>
> >>
> >>
> >>
> >>
> >>
> >>
> >> ==================================
> >> List" rel="noreferrer"
> >> target="_blank">http://www.matronics.com/Navigator?Yak-List
> >> ==================================
> >> FORUMS -
> >> eferrer" target="_blank">http://forums.matronics.com
> >> ==================================
> >> WIKI -
> >> errer" target="_blank">http://wiki.matronics.com
> >> ==================================
> >> b Site -
> >> -Matt Dralle, List Admin.
> >> rel="noreferrer"
> >> target="_blank">http://www.matronics.com/contribution
> >> ==================================
> >>
> >>
> >>
> >>
> >
>
>
> ________________________________ Message 5
> _____________________________________
>
>
> Time: 06:56:26 AM PST US
> From: Roger Kemp <f16viperdoc@me.com>
> Subject: Re: Yak-List: Engine Stumble on Climb Out
>
> Bad mag coil.
> Doc
>
> Sent from my iPad
>
> > On Jun 4, 2018, at 7:51 AM, JON BLAKE <jblake207@comcast.net> wrote:
> >
> > Holy double props Sappman...
> >
> >> On June 1, 2018 at 10:40 AM doug sapp <dougsappllc@gmail.com> wrote:
> >>
> >> Not exactly a Yak, but has a bit of Yak dna.
> >> https://www.auctionzip.com/auction-lot/lot_C5F405A9AF?utm_source=azemai
> l&utm_medium=email&utm_campaign=alerts
> >>
> >>> On Wed, May 30, 2018 at 11:44 PM, ggtyler <ggtyler@gmail.com> wrote:
> >>>
> >>> Just a bit of excitement in the Yak 52TW today.
> >>>
> >>> Flight before last the engine did a hard stumble twice in succession
> on c
> limb out. I immediately swung back towards the field, but once I pulled
> back
> from 2400RPM to 2100, it smoothed out. Gave it a few minutes, played with
> t
> he throttle and rpm's and it did not come back. Figured it was just a
> fouled
> plug.
> >>>
> >>> I did a couple more hours of flying and starts/stops that day with no
> is
> sues.
> >>>
> >>> Went up again today, and on climb out, 2400 RPM, hard stumble. Then
> anot
> her, and another, quickly turned back, pulled back to 2100 RPM, but the
> hard
> stumbles proceeded to keep happening. At one point, I was pretty sure it
> wa
> s going to quit running entirely. That 1.5 seconds or 2 seconds of
> stumbles i
> n a row can feel like an eternity.
> >>>
> >>> It was running pretty badly, wife was in the back on her second flight
> e
> ver with me. I was pretty darn stressed, so more focused on getting back
> on t
> he ground safely than anything else. I did not think to do a mag check,
> but d
> idn't really have time, as I had only just made pattern altitude by the
> time
> I was on downwind. I did scan through all the instruments, and all
> temps/p
> ressures seemed be normal.
> >>>
> >>> On final, I must say, I just wanted us to be back on the ground NOW,
> and
> was getting in a bit of a hurry to get down. Realizing that stress was
> dict
> ating my landing, I just kept telling myself "don't get in a hurry, hold
> it o
> ff, hold it off". Not my best landing ever, but not one I need to be
> ashamed
> of. I did find it hard to keep my legs from bouncing all over while
> taxing.
> Not often I get that much adrenaline pumping.
> >>>
> >>> Wife's a bit of a gear-head so knew everything was definitely not
> cool, b
> ut she stayed calm and didn't freak out. It's nice to have someone to hug
> af
> ter a bit of a scare.
> >>>
> >>> Dropped a text to Vladimir Yastremski (he does my annuals). That guy
> alw
> ays calls me back, no matter what time of day. He's even on vacation right
> n
> ow. Talk about service! Diagnostics will come later, and will update here.
> >>>
> >>>
> >>>
> >>>
> >>> Read this topic online here:
> >>>
> >>> http://forums.matronics.com/viewtopic.php?p=480530#480530
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>> =======================
> ==========
> >>> List" rel="noreferrer" target="_blank">http://www.matronics.com/Navi
> gator?Yak-List
> >>> =======================
> ==========
> >>> FORUMS -
> >>> eferrer" target="_blank">http://forums.matronics.com
> >>> =======================
> ==========
> >>> WIKI -
> >>> errer" target="_blank">http://wiki.matronics.com
> >>> =======================
> ==========
> >>> b Site -
> >>> -Matt Dralle, List Admin.
> >>> rel="noreferrer" target="_blank">http://www.matronics.com/contributi
> on
> >>> =======================
> ==========
> >>>
> >>>
> >>>
> >>
> >
> >
>
> ________________________________ Message 6
> _____________________________________
>
>
> Time: 08:41:09 AM PST US
> From: Rico Jaeger <rocknpilot@hotmail.com>
> Subject: Yak-List: Air Bottle Seal
>
> Does anyone have the hot tip for sealing air bottles? In pulling 3 apart, I
> 've found nylon seals, neoprene o-rings, gasket sealer, etc. The parts manu
> al shows a nut, a washer and a "sealnig" (sic) ring. Is the washer a crush
> washer? My emergency bottle fills to about half capacity - then hisses unti
> l empty. I've been through the whole system and just replaced the bottle, b
> ut now am having redundant issues trying to seal it.
>
>
> HELP!
>
>
> Thanks!
>
>
> Rico Jaeger
> 915 S. 11th Ave.
> Wausau, WI. 54401
> 715.529.7426
> //
> 1969 Cessna 150J ^/---//-X
> N61333 //
> Hangar #35 / AUW
> //
> 1992 Yakovlev Yak 52 ^/---//-X
> N21YK //
> Hangar #21 / AUW
>
>
> ________________________________ Message 7
> _____________________________________
>
>
> Time: 09:38:09 AM PST US
> From: "Bitterlich, Mark G CIV NAVAIR, WD" <mark.bitterlich@navy.mil>
> Subject: Yak-List: Re: Chinese rebuild engine
>
>
> Out on the fringe ... but have you ever run a compression check on this
> engine?
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@
> matronics.com] On Behalf Of Flibob
> Sent: Saturday, June 02, 2018 5:12 PM
> Subject: [Non-DoD Source] Yak-List: Re: Chinese rebuild engine
>
>
> Still working on this engine. Starts but won't run unless 1. Throttle is
> pumped
> constantly or 2 wobble is pumped or 3 primer is pumped. Any of which will
> keep
> engine running at 1500 +_.
>
> I have taken the carberater and fuel pump off running engine with no
> effect. Also
> cleaned points in both mags.
>
> Any ideas?
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=480590#480590
>
>
> ________________________________ Message 8
> _____________________________________
>
>
> Time: 09:49:27 AM PST US
> From: Mark Pennington <pennington.construction.inc.1@gmail.com>
> Subject: Re: Yak-List: Air Bottle Seal
>
> Rico
>
> I just went through this with my CJ. Replaced the main and emergency air
> tanks with new stainless steel tanks. The seals I got from Doug were
> stainless steel threaded plugs / fittings with copper crush washers.
> After three attempts to seal the inlet and outlet fittings I call Doug and
> he told me to use use the black gooey thread sealant sparingly on the
> threads.
>
> Once I did that and let the tanks sit over night I was successful in
> sealing the tanks on both the inlet fittings and the drain plug. 20 hours
> later still holding tight.
>
> The sealant I used was obtained from O'Reilys Auto Parts and is for
> aviation use. The product used is
>
> VersaChem Prime Seal Type 3 for aviation VersaChem Part Number is 34000
>
>
> Hope this helps
> Mark
> N621CJ
> Richmond VA
>
>
> On Mon, Jun 4, 2018 at 11:40 AM, Rico Jaeger <rocknpilot@hotmail.com>
> wrote:
>
> > Does anyone have the hot tip for sealing air bottles? In pulling 3 apart,
> > I've found nylon seals, neoprene o-rings, gasket sealer, etc. The parts
> > manual shows a nut, a washer and a "sealnig" (sic) ring. Is the washer a
> > crush washer? My emergency bottle fills to about half capacity - then
> > hisses until empty. I've been through the whole system and just replaced
> > the bottle, but now am having redundant issues trying to seal it.
> >
> >
> > HELP!
> >
> >
> > Thanks!
> >
> >
> > Rico Jaeger
> > 915 S. 11th Ave.
> > <https://maps.google.com/?q=915+S.+11th+Ave.++%0D%
> 0AWausau,+WI.+54401++%0D%0A715&entry=gmail&source=g>
> >
> > Wausau, WI. 54401
> > 715.529.7426
> > //
> > 1969 Cessna 150J ^/---//-X
> > N61333 //
> > Hangar #35 / AUW
> > //
> > 1992 Yakovlev Yak 52 ^/---//-X
> > N21YK //
> > Hangar #21 / AUW
> >
> >
>
> ________________________________ Message 9
> _____________________________________
>
>
> Time: 10:07:12 AM PST US
> From: JON BLAKE <jblake207@comcast.net>
> Subject: Re: Yak-List: Air Bottle Seal
>
> Doug Sapp sells the brass crush washer needed. JB
>
>
> > On June 4, 2018 at 10:40 AM Rico Jaeger <rocknpilot@hotmail.com> wrote:
> >
> > Does anyone have the hot tip for sealing air bottles? In pulling 3
> apart,
> I've found nylon seals, neoprene o-rings, gasket sealer, etc. The parts
> manual
> shows a nut, a washer and a "sealnig" (sic) ring. Is the washer a crush
> washer?
> My emergency bottle fills to about half capacity - then hisses until empty.
> I've been through the whole system and just replaced the bottle, but now am
> having redundant issues trying to seal it.
> >
> > HELP!
> >
> > Thanks!
> >
> > Rico Jaeger
> > 915 S. 11th Ave.
> > Wausau, WI. 54401
> > 715.529.7426
> >
> //
> > 1969 Cessna 150J ^/---//-X
> > N61333 //
> > Hangar #35 / AUW
> > //
> > 1992 Yakovlev Yak 52 ^/---//-X
> > N21YK //
> > Hangar #21 / AUW
> >
> >
> >
>
>
> ________________________________ Message 10
> ____________________________________
>
>
> Time: 11:30:46 AM PST US
> From: Justin Drafts <draftsjust417@gmail.com>
> Subject: Re: Yak-List: Air Bottle Seal
>
> Hey hey, so I JUST encountered the identical issue on my CJ6's emergency
> and main air bottles during cond insp.
> I pulled the drain plugs to clean the bottles, removing non-standard lead
> crush washers from in the process. (They'd been there since purchase,
> perhaps installed by Chinese?)
> After cleaning/rinsing bottles I reinstalled the plugs with PLAAF-specified
> copper washers.
> The main bottle holds air perfectly on first try.
> The emergency bottle flatly refused to hold air despite several attempts
> with new Cu washers... very slow leaks remained.
> I finally cleaned everything with compressed air & Isopropyl alcohol,
> applied a high-pressure (5000 psi) PermaTex thread sealer to the drain plug
> threads, reinstalled w/ new Cu washer otherwise per Chinese parts manual.
> Once the sealant had fully set (24 hrs), it holds air 100%.
>
> Worked for me!
>
> Justin Drafts
> N280NC
>
> On 11:46, Mon, Jun 4, 2018 Rico Jaeger <rocknpilot@hotmail.com> wrote:
>
> > Does anyone have the hot tip for sealing air bottles? In pulling 3 apart,
> > I've found nylon seals, neoprene o-rings, gasket sealer, etc. The parts
> > manual shows a nut, a washer and a "sealnig" (sic) ring. Is the washer a
> > crush washer? My emergency bottle fills to about half capacity - then
> > hisses until empty. I've been through the whole system and just replaced
> > the bottle, but now am having redundant issues trying to seal it.
> >
> >
> > HELP!
> >
> >
> > Thanks!
> >
> >
> > Rico Jaeger
> > 915 S. 11th Ave.
> > Wausau, WI. 54401
> > 715.529.7426
> > //
> > 1969 Cessna 150J ^/---//-X
> > N61333 //
> > Hangar #35 / AUW
> > //
> > 1992 Yakovlev Yak 52 ^/---//-X
> > N21YK //
> > Hangar #21 / AUW
> >
> >
>
> ________________________________ Message 11
> ____________________________________
>
>
> Time: 12:54:32 PM PST US
> From: Rico Jaeger <rocknpilot@hotmail.com>
> Subject: Re: Yak-List: Air Bottle Seal
>
> Thanks, Justin!! I will give it a try...
>
>
> Rico Jaeger
> 915 S. 11th Ave.
> Wausau, WI. 54401
> 715.529.7426
> //
> 1969 Cessna 150J ^/---//-X
> N61333 //
> Hangar #35 / AUW
> //
> 1992 Yakovlev Yak 52 ^/---//-X
> N21YK //
> Hangar #21 / AUW
>
>
> ________________________________
> From: owner-yak-list-server@matronics.com <owner-yak-list-server@
> matronics.
> com> on behalf of Justin Drafts <draftsjust417@gmail.com>
> Sent: Monday, June 4, 2018 1:25:17 PM
> Subject: Re: Yak-List: Air Bottle Seal
>
>
> Hey hey, so I JUST encountered the identical issue on my CJ6's emergency an
> d main air bottles during cond insp.
> I pulled the drain plugs to clean the bottles, removing non-standard lead c
> rush washers from in the process. (They'd been there since purchase, perhap
> s installed by Chinese?)
> After cleaning/rinsing bottles I reinstalled the plugs with PLAAF-specified
> copper washers.
> The main bottle holds air perfectly on first try.
> The emergency bottle flatly refused to hold air despite several attempts wi
> th new Cu washers... very slow leaks remained.
> I finally cleaned everything with compressed air & Isopropyl alcohol, appli
> ed a high-pressure (5000 psi) PermaTex thread sealer to the drain plug thre
> ads, reinstalled w/ new Cu washer otherwise per Chinese parts manual. Once
> the sealant had fully set (24 hrs), it holds air 100%.
>
> Worked for me!
>
> Justin Drafts
> N280NC
>
> On 11:46, Mon, Jun 4, 2018 Rico Jaeger <rocknpilot@hotmail.com<mailto:
> rockn
> pilot@hotmail.com>> wrote:
>
> Does anyone have the hot tip for sealing air bottles? In pulling 3 apart, I
> 've found nylon seals, neoprene o-rings, gasket sealer, etc. The parts manu
> al shows a nut, a washer and a "sealnig" (sic) ring. Is the washer a crush
> washer? My emergency bottle fills to about half capacity - then hisses unti
> l empty. I've been through the whole system and just replaced the bottle, b
> ut now am having redundant issues trying to seal it.
>
>
> HELP!
>
>
> Thanks!
>
>
> Rico Jaeger
> 915 S. 11th Ave.
> Wausau, WI. 54401
> 715.529.7426
> //
> 1969 Cessna 150J ^/---//-X
> N61333 //
> Hangar #35 / AUW
> //
> 1992 Yakovlev Yak 52 ^/---//-X
> N21YK //
> Hangar #21 / AUW
>
>
> ________________________________ Message 12
> ____________________________________
>
>
> Time: 02:43:40 PM PST US
> From: Craig Payne <yakman285@gmail.com>
> Subject: Yak-List: CJ Mechanic needed
>
> A prospective CJ customer of mine will base near Gulfport, MS and will need
> help from time-to-time, between annuals for a local mechanic with Yak/CJ
> experience. Any such guys around that area?
>
> Craig Payne
> Payne Aviation LLC
>
> ________________________________ Message 13
> ____________________________________
>
>
> Time: 03:42:09 PM PST US
> Subject: Yak-List: Re: Engine Stumble on Climb Out
> From: "Looigi" <cdoburton@gmail.com>
>
>
> So, I pulled the plus on my Yak-52 today as a part of the Annual check and
> measured
> the resistance through the core (plug lead contact to electrode). I found
> a varied set of resistance values ranging from 1500 ohms (perfect) through
> 5000
> ohms (the accepted limit) to 15 000 ohms (way outside tolerance).
>
> I have replaced one magneto coil and two starter booster coils on my plane
> in 70
> hours! I doubt that these parts are the root cause. My suspicion is that
> the
> high resistance plugs are causing the issues we are seeing. I think what
> is
> happening is that the spark energy is cross firing inside the harness to a
> cylinder
> that is on it's induction stroke rather than go through the high resistance
> plugs like a well behaved spark should. The rogue spark energy could also
> me damaging the capacitor in the coil as well, like Richard suggests.
>
> I have asked before, but I have not had any replies... What are the
> resistance
> of your plugs? I'll bet that you have a few high resistance plugs in
> amongst
> yours.
>
> We are going to be fitting Dennis's automotive kit to our Yak to hopefully
> resolve
> this issue.
>
> There is some serious Yak and CJ-6 experience on here... Thoughts?
>
> Chris
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=480649#480649
>
>
> ________________________________ Message 14
> ____________________________________
>
>
> Time: 04:04:09 PM PST US
> Subject: Yak-List: Re: drunken attitude indicator in CJ
> From: "Ttail" <ttail@internode.on.net>
>
>
> Single unit with internal Gyro.I put a new one in about 2 years ago.
> Straight out
> straight in worked flawlessly.
>
> I received the new AI in a pressurized tin ... it was an almost zen
> experience
> opening the can :)
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=480650#480650
>
>
> ________________________________ Message 15
> ____________________________________
>
>
> Time: 04:38:07 PM PST US
> From: Frank Stelwagon <pfstelwagon@earthlink.net>
> Subject: Re: Yak-List: Re: Engine Stumble on Climb Out
>
>
> Go with Denniss kit by all means.
>
> Frank
>
> Sent from my iPhone
>
> > On Jun 4, 2018, at 3:41 PM, Looigi <cdoburton@gmail.com> wrote:
> >
> >
> > So, I pulled the plus on my Yak-52 today as a part of the Annual check
> and measured
> the resistance through the core (plug lead contact to electrode). I found
> a varied set of resistance values ranging from 1500 ohms (perfect) through
> 5000 ohms (the accepted limit) to 15 000 ohms (way outside tolerance).
> >
> > I have replaced one magneto coil and two starter booster coils on my
> plane in
> 70 hours! I doubt that these parts are the root cause. My suspicion is
> that
> the high resistance plugs are causing the issues we are seeing. I think
> what
> is happening is that the spark energy is cross firing inside the harness
> to a
> cylinder that is on it's induction stroke rather than go through the high
> resistance
> plugs like a well behaved spark should. The rogue spark energy could
> also me damaging the capacitor in the coil as well, like Richard suggests.
> >
> > I have asked before, but I have not had any replies... What are the
> resistance
> of your plugs? I'll bet that you have a few high resistance plugs in
> amongst
> yours.
> >
> > We are going to be fitting Dennis's automotive kit to our Yak to
> hopefully resolve
> this issue.
> >
> > There is some serious Yak and CJ-6 experience on here... Thoughts?
> >
> > Chris
> >
> >
> >
> >
> > Read this topic online here:
> >
> > http://forums.matronics.com/viewtopic.php?p=480649#480649
> >
> >
> >
> >
> >
> >
> >
> >
> >
>
>
> ________________________________ Message 16
> ____________________________________
>
>
> Time: 04:38:47 PM PST US
> From: "A. Dennis Savarese" <dsavarese0812@bellsouth.net>
> Subject: Re: Yak-List: Re: Engine Stumble on Climb Out
>
> As far as the stumble you experienced, although you replaced one coil alrea
> dy, don't discount the fact that the other mag coil could also be failing i
> ntermittently.=C2-
>
> There is another very important issue that many, many people do not look in
> to.=C2- It is much like setting the E gap on a Bendix or Slick magneto us
> ed on a Lycoming or Continental engine.=C2- All of the Russian and Chines
> e mags have the same issue and that is, there is no E-gap setting.=C2- Th
> e E-gap setting on the Bendix or Slick magnetos sets the point gap AND alig
> ns the rotor finger with the contact point in the distributor cap.
>
> Most everyone understands that the point gap has to be set to .25-.35mm or
> .010-.014 thousands.=C2- Ideally, .3 mm or .012. =C2- But again, settin
> g the point gap does not align the rotor to the contact point to the distri
> butor cap on the Russian and Chinese mags.=C2- And that is where so many
> people setting the timing on the Russian and Chinese mags fall short.=C2-
> It is imperative after setting the point gap and the timing that the rotor
> be properly positioned when the points first open on the number 4 cylinder
> , to align directly under the distributor contact point.=C2- That is why
> there are 3 slots in the rotor with screws so the screws can be loosened an
> d the leading finger in the counterclockwise rotation points directly to th
> e scribe mark on the flat surface mating with the cover and next to the hig
> h voltage stick.=C2- Loosen the 3 screws and with a 6" metal ruler or str
> aight edge, align the straight edge with the center of the rotor, the leadi
> ng finger in the counterclockwise rotation direction AND the scribe mark.
> =C2- Be sure to look directly down on the magneto.=C2- Not on an angle
> because the alignment will not be directly under the contact point when the
> distributor cap is reinstalled.=C2- Once you do this, you will have esse
> ntially set the "E-gap" and eliminate any potential arcing between the roto
> r finger and the contact in the cap.=C2- Remember, ANY air gap adds resis
> tance to the circuit and thus reduces the electrical charge to the plug.=C2
> - That is why positioning the rotor after setting the point gap and then
> the mag timing is so important.Dennis
>
>
> From: Looigi <cdoburton@gmail.com>
> To: yak-list@matronics.com
> Sent: Monday, June 4, 2018 6:44 PM
> Subject: Yak-List: Re: Engine Stumble on Climb Out
>
>
> So, I pulled the plus on my Yak-52 today as a part of the Annual check and
> measured the resistance through the core (plug lead contact to electrode).
> =C2- I found a varied set of resistance values ranging from 1500 ohms (pe
> rfect) through 5000 ohms (the accepted limit) to 15 000 ohms (way outside t
> olerance).
>
> I have replaced one magneto coil and two starter booster coils on my plane
> in 70 hours!=C2- I doubt that these parts are the root cause.=C2- My su
> spicion is that the high resistance plugs are causing the issues we are see
> ing.=C2- I think what is happening is that the spark energy is cross firi
> ng inside the harness to a cylinder that is on it's induction stroke rather
> than go through the high resistance plugs like a well behaved spark should
> .=C2- The rogue spark energy could also me damaging the capacitor in the
> coil as well, like Richard suggests.
>
> I have asked before, but I have not had any replies...=C2- What are the r
> esistance of your plugs?=C2- I'll bet that you have a few high resistance
> plugs in amongst yours.
>
> We are going to be fitting Dennis's automotive kit to our Yak to hopefully
> resolve this issue.
>
> There is some serious Yak and CJ-6 experience on here...=C2- Thoughts?
>
> Chris
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=480649#480649
>
>
> S -
> WIKI -
> -
> =C2- =C2- =C2- =C2- =C2- -Matt Dralle, List Admin.
>
>
> ________________________________ Message 17
> ____________________________________
>
>
> Time: 07:34:38 PM PST US
> From: "Sam Sax" <cd001633@mindspring.com>
> Subject: RE: Yak-List: Re: Engine Stumble on Climb Out
>
> Dennis,
>
>
> An excellent point and very well explained! =93 a good refresher
> for many of us, myself included
>
>
> Thanks much,
>
>
> Sam Sax
>
> Miami
>
>
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of A. Dennis
> Savarese
> Sent: Monday, June 04, 2018 7:38 PM
> Subject: Re: Yak-List: Re: Engine Stumble on Climb Out
>
>
> As far as the stumble you experienced, although you replaced one coil
> already, don't discount the fact that the other mag coil could also be
> failing intermittently.
>
>
> There is another very important issue that many, many people do not look
> into. It is much like setting the E gap on a Bendix or Slick magneto
> used on a Lycoming or Continental engine. All of the Russian and
> Chinese mags have the same issue and that is, there is no E-gap setting.
> The E-gap setting on the Bendix or Slick magnetos sets the point gap
> AND aligns the rotor finger with the contact point in the distributor
> cap.
>
>
> Most everyone understands that the point gap has to be set to .25-.35mm
> or .010-.014 thousands. Ideally, .3 mm or .012. But again, setting
> the point gap does not align the rotor to the contact point to the
> distributor cap on the Russian and Chinese mags. And that is where so
> many people setting the timing on the Russian and Chinese mags fall
> short. It is imperative after setting the point gap and the timing that
> the rotor be properly positioned when the points first open on the
> number 4 cylinder, to align directly under the distributor contact
> point. That is why there are 3 slots in the rotor with screws so the
> screws can be loosened and the leading finger in the counterclockwise
> rotation points directly to the scribe mark on the flat surface mating
> with the cover and next to the high voltage stick. Loosen the 3 screws
> and with a 6" metal ruler or straight edge, align the straight edge with
> the center of the rotor, the leading finger in the counterclockwise
> rotation direction AND the scribe mark. Be sure to look directly down
> on the magneto. Not on an angle because the alignment will not be
> directly under the contact point when the distributor cap is
> reinstalled. Once you do this, you will have essentially set the
> "E-gap" and eliminate any potential arcing between the rotor finger and
> the contact in the cap. Remember, ANY air gap adds resistance to the
> circuit and thus reduces the electrical charge to the plug. That is why
> positioning the rotor after setting the point gap and then the mag
> timing is so important.
>
> Dennis
>
>
> _____
>
> From: Looigi <cdoburton@gmail.com>
> Sent: Monday, June 4, 2018 6:44 PM
> Subject: Yak-List: Re: Engine Stumble on Climb Out
>
>
> So, I pulled the plus on my Yak-52 today as a part of the Annual check
> and measured the resistance through the core (plug lead contact to
> electrode). I found a varied set of resistance values ranging from 1500
> ohms (perfect) through 5000 ohms (the accepted limit) to 15 000 ohms
> (way outside tolerance).
>
>
> I have replaced one magneto coil and two starter booster coils on my
> plane in 70 hours! I doubt that these parts are the root cause. My
> suspicion is that the high resistance plugs are causing the issues we
> are seeing. I think what is happening is that the spark energy is cross
> firing inside the harness to a cylinder that is on it's induction stroke
> rather than go through the high resistance plugs like a well behaved
> spark should. The rogue spark energy could also me damaging the
> capacitor in the coil as well, like Richard suggests.
>
>
> I have asked before, but I have not had any replies... What are the
> resistance of your plugs? I'll bet that you have a few high resistance
> plugs in amongst yours.
>
>
> We are going to be fitting Dennis's automotive kit to our Yak to
> hopefully resolve this issue.
>
>
> There is some serious Yak and CJ-6 experience on here... Thoughts?
>
>
> Chris
>
>
> Read this topic online here:
>
>
> http://forums.matronics.com/viewtopic.php?p=480649#480649
>
>
> http://www.matronics.nbsp; - MATRONICS WEB FORUMS -htt
> <http://forums.matronics.com/> - NEW MATRONICS LIST
> WIiki.matronics.com/" target="_blank">http://wiki.matronics.com
>
>
> http://www.matron=
>
>
> ________________________________ Message 18
> ____________________________________
>
>
> Time: 07:48:25 PM PST US
> From: "Walter Lannon" <wlannon@shaw.ca>
> Subject: Re: Yak-List: Re: Engine Stumble on Climb Out
>
>
> I have been checking aircraft spark plug resistance for a few years now.
>
> My score so far: Champion -- Terrible, Tempest -- Very good, Chinese DZ
> 5 -- The best, typically 1200 -1500. Don't recall ever replacing one for
> this reason. Have not, so far, checked any Russian ones.
>
> Walt
>
> -----Original Message-----
> From: Looigi
> Sent: Monday, June 04, 2018 3:41 PM
> Subject: Yak-List: Re: Engine Stumble on Climb Out
>
>
> So, I pulled the plus on my Yak-52 today as a part of the Annual check and
> measured the resistance through the core (plug lead contact to electrode).
> I found a varied set of resistance values ranging from 1500 ohms (perfect)
> through 5000 ohms (the accepted limit) to 15 000 ohms (way outside
> tolerance).
>
> I have replaced one magneto coil and two starter booster coils on my plane
> in 70 hours! I doubt that these parts are the root cause. My suspicion
> is
> that the high resistance plugs are causing the issues we are seeing. I
> think what is happening is that the spark energy is cross firing inside
> the
> harness to a cylinder that is on it's induction stroke rather than go
> through the high resistance plugs like a well behaved spark should. The
> rogue spark energy could also me damaging the capacitor in the coil as
> well,
> like Richard suggests.
>
> I have asked before, but I have not had any replies... What are the
> resistance of your plugs? I'll bet that you have a few high resistance
> plugs in amongst yours.
>
> We are going to be fitting Dennis's automotive kit to our Yak to hopefully
> resolve this issue.
>
> There is some serious Yak and CJ-6 experience on here... Thoughts?
>
> Chris
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=480649#480649
>
>
> ---
> This email has been checked for viruses by Avast antivirus software.
> https://www.avast.com/antivirus
>
>
> ________________________________ Message 19
> ____________________________________
>
>
> Time: 08:04:50 PM PST US
> From: Roger Kemp <f16viperdoc@me.com>
> Subject: Re: Yak-List: Re: Engine Stumble on Climb Out
>
>
> My limited experience with the Chinese DZ5 plugs is the are hotter.
> Doc
>
> Sent from my iPad
>
> > On Jun 4, 2018, at 9:48 PM, Walter Lannon <wlannon@shaw.ca> wrote:
> >
> >
> > I have been checking aircraft spark plug resistance for a few years now.
> >
> > My score so far: Champion -- Terrible, Tempest -- Very good, Chinese
> DZ 5
> -- The best, typically 1200 -1500. Don't recall ever replacing one for
> this reason.
> Have not, so far, checked any Russian ones.
> >
> > Walt
> >
> > -----Original Message----- From: Looigi
> > Sent: Monday, June 04, 2018 3:41 PM
> > To: yak-list@matronics.com
> > Subject: Yak-List: Re: Engine Stumble on Climb Out
> >
> >
> > So, I pulled the plus on my Yak-52 today as a part of the Annual check
> and measured
> the resistance through the core (plug lead contact to electrode). I found
> a varied set of resistance values ranging from 1500 ohms (perfect) through
> 5000 ohms (the accepted limit) to 15 000 ohms (way outside tolerance).
> >
> > I have replaced one magneto coil and two starter booster coils on my
> plane in
> 70 hours! I doubt that these parts are the root cause. My suspicion is
> that
> the high resistance plugs are causing the issues we are seeing. I think
> what
> is happening is that the spark energy is cross firing inside the harness
> to a
> cylinder that is on it's induction stroke rather than go through the high
> resistance
> plugs like a well behaved spark should. The rogue spark energy could
> also me damaging the capacitor in the coil as well, like Richard suggests.
> >
> > I have asked before, but I have not had any replies... What are the
> resistance
> of your plugs? I'll bet that you have a few high resistance plugs in
> amongst
> yours.
> >
> > We are going to be fitting Dennis's automotive kit to our Yak to
> hopefully resolve
> this issue.
> >
> > There is some serious Yak and CJ-6 experience on here... Thoughts?
> >
> > Chris
> >
> >
> >
> >
> > Read this topic online here:
> >
> > http://forums.matronics.com/viewtopic.php?p=480649#480649
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > ---
> > This email has been checked for viruses by Avast antivirus software.
> > https://www.avast.com/antivirus
> >
> >
> >
> >
>
>
Message 2
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| Subject: | Re: CJ Mechanic needed |
Hi Craig,
We have two Yaks, based in St. Elmo (Mobile, AL), we could be helpful.=C2
- Also, another for plane for formation flying would be nice.
Rob Baker
On Monday, June 4, 2018 4:46 PM, Craig Payne <yakman285@gmail.com> wrot
e:
A prospective CJ customer of mine will base near Gulfport, MS and will nee
d help from time-to-time, between annuals for a local mechanic with Yak/CJ
experience. Any such guys around that area?
Craig PaynePayne Aviation LLC
Message 3
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| Subject: | Re: CJ Mechanic needed |
Hey Rob,
Don't know if you are aware of the Music City Mingle coming up next week up
here in Lebanon, TN. If your interested, let me know and I'll forward you
some info. 2/3 of the folks will arrive Thursday afternoon and the rest
Friday morning. Event is till Sunday. Right now we have 17 aircraft. All
but two are YAKs and CJ6's. We have 3 coming out of Alabama.
Greg Wrobel
On Tue, Jun 5, 2018, 12:22 PM HobbyTown USA <htumobile@bellsouth.net> wrote:
> Hi Craig,
>
> We have two Yaks, based in St. Elmo (Mobile, AL), we could be helpful.
> Also, another for plane for formation flying would be nice.
>
> Rob Baker
>
>
> On Monday, June 4, 2018 4:46 PM, Craig Payne <yakman285@gmail.com> wrote:
>
>
> A prospective CJ customer of mine will base near Gulfport, MS and will
> need help from time-to-time, between annuals for a local mechanic with
> Yak/CJ experience. Any such guys around that area?
>
> Craig Payne
> Payne Aviation LLC
>
>
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