Today's Message Index:
----------------------
1. 04:52 AM - Re: Yak-52/M-14P Magneto Issue (A. Dennis Savarese)
2. 05:08 AM - Re: Yak-List Digest: 10 Msgs - 01/11/10 (Roman Upshaw)
3. 02:53 PM - CJ Analog Tachs (Byron Fox)
4. 06:02 PM - few problems solved (bizbug182)
5. 06:45 PM - Re: few problems solved (A. Dennis Savarese)
Message 1
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| Subject: | Re: Yak-52/M-14P Magneto Issue |
Correct on the gap Mark. Actually I "suggest" around .021 or .022. But
.020 is close enough for government work. :-)
Dennis
----- Original Message -----
From: Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E
To: yak-list@matronics.com
Sent: Monday, January 11, 2010 10:59 AM
Subject: RE: Yak-List: Yak-52/M-14P Magneto Issue
Point, MALS-14 64E" <mark.bitterlich@navy.mil>
Just out of curiosity, does this engine have automotive spark plugs,
and
if so, what is the gap on them?
Cutting to the chase, it is shot-gun long shot not based on enough
evidence, but if these are auto plugs, you might want to replace them
and make sure the GAP is not set to around .035 or so. I think Dennis
recommends around .020, or something like that. (ASK HIM!) But I do
know that if your plug gap is set too wide, you will have the mag
drops
that you mentioned AND the engine can be hard to start, as well as
running a lot differently once it has warmed up. That happened to me,
and it took darn close to 6 months to figure it out.
Failing that, I would recommend making darn sure that the mags are
installed and timed properly which is no easy task. By "timed", I
mean
not only with a buzz box, but also that the rotors have been set
properly, which is often overlooked. Again, talk to Dennis or George
Coy.
Mark Bitterlich
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Craig
Winkelmann
Sent: Monday, January 11, 2010 8:23 AM
To: yak-list@matronics.com
Subject: Yak-List: Yak-52/M-14P Magneto Issue
A friends Yak-52 is having problems with the mags. He had a 5-7% RPM
drop and had the mags overhauled. They check out fine on the ground
during initial runup. After operating for some time, when a mag check
is done, the engine nearly dies on each mag. So, when both mags, all
is
good, when one mag (either L or R) the engine nearly dies.
Any thoughts?
Craig
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=281004#281004
Message 2
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| Subject: | RE: Yak-List Digest: 10 Msgs - 01/11/10 |
-----Original Message-----
From: Yak-List Digest Server <yak-list@matronics.com>
Sent: Tuesday, January 12, 2010 1:59 AM
Subject: Yak-List Digest: 10 Msgs - 01/11/10
*
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Total Messages Posted Mon 01/11/10: 10
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Today's Message Index:
----------------------
1. 02:08 AM - Re: CJ-6A LED replacement bulbs (Didier Blouzard)
2. 02:08 AM - Re: CJ-6A LED replacement bulbs (Didier Blouzard)
3. 03:41 AM - Re: YAK 50 Spar attachment bracket. (aerostar6)
4. 04:41 AM - Re: Re: YAK 50 Spar attachment bracket. (Jan Mevis)
5. 05:12 AM - Re: CJ-6A LED replacement bulbs (Warren Hill)
6. 05:23 AM - Yak-52/M-14P Magneto Issue (Craig Winkelmann)
7. 05:36 AM - Re: CJ-6A LED replacement bulbs (Didier Blouzard)
8. 05:40 AM - Re: Yak-52/M-14P Magneto Issue (cjpilot710@aol.com)
9. 09:01 AM - Re: Yak-52/M-14P Magneto Issue (Bitterlich, Mark G CIV Det
Cherry Point, MALS-14 64E)
10. 10:10 AM - Too funny not to pass along. (cjpilot710@aol.com)
________________________________ Message 1 _____________________________________
Time: 02:08:35 AM PST US
From: Didier Blouzard <didier.blouzard@gmail.com>
Subject: Re: Yak-List: CJ-6A LED replacement bulbs
Hi Larry,
thank for the post. Do you know if the lights are the same on the 52 or the
18T.
It looks like!!
regards
Didier
2010/1/10 Warren Hill <k7wx@earthlink.net>
> Gentlemen,
>
> Larry Pine and I have been outfitting my CJ for night flight with wing
> strobes and a red strobe for the top of the rudder. We were also planning on
> replacing that anemic, barely visible flashlight bulb on the tail with a LED
> position light / strobe from Aveo Engineering.
>
> Last week on the Internet I came across what appeared to be an exact LED
> drop-in replacement for the Chinese bulb. It's 24 volt, LED cluster that has
> the same bayonet base, draws very little current, is astonishingly bright
> and basically lasts forever. This would also be a direct, drop-in
> replacement for those three lights on the nose gear and mains. This
> particular LED arrangement has viewing angle of 90 degrees, so it is
> brightest when viewed mostly from straight ahead. Here is where I found
> this:
>
>
> www.superbrightleds.com/cgi-bin/store/index.cgi?action=DispPage&Page2Disp=%2Fother_bulbs.htm
>
> The web site navigation is a little confusing and flat-footed, but
> basically what you would be looking for is the 24 volt, white, dual contact,
> single intensity, 15 mm 1142 bayonet base. The ordering designation is:
> 1142-W15-24V White LED bulb - 24V.
>
> A few days ago my order arrived and last night we tested the landing gear
> and tail lights in place. Wow!
>
> I've attached a picture of what this looks like installed. For about six
> bucks each they are the cheapest upgrades I've installed to date.
>
> Warren Hill
> N867PA Mesa, AZ
>
>
--
Didier BLOUZARD
didier.blouzard@gmail.com
0624243672
________________________________ Message 2 _____________________________________
Time: 02:08:43 AM PST US
From: Didier Blouzard <didier.blouzard@gmail.com>
Subject: Re: Yak-List: CJ-6A LED replacement bulbs
Hi Larry,
thank for the post. Do you know if the lights are the same on the 52 or the
18T.
It looks like!!
regards
Didier
2010/1/10 Warren Hill <k7wx@earthlink.net>
> Gentlemen,
>
> Larry Pine and I have been outfitting my CJ for night flight with wing
> strobes and a red strobe for the top of the rudder. We were also planning on
> replacing that anemic, barely visible flashlight bulb on the tail with a LED
> position light / strobe from Aveo Engineering.
>
> Last week on the Internet I came across what appeared to be an exact LED
> drop-in replacement for the Chinese bulb. It's 24 volt, LED cluster that has
> the same bayonet base, draws very little current, is astonishingly bright
> and basically lasts forever. This would also be a direct, drop-in
> replacement for those three lights on the nose gear and mains. This
> particular LED arrangement has viewing angle of 90 degrees, so it is
> brightest when viewed mostly from straight ahead. Here is where I found
> this:
>
>
> www.superbrightleds.com/cgi-bin/store/index.cgi?action=DispPage&Page2Disp=%2Fother_bulbs.htm
>
> The web site navigation is a little confusing and flat-footed, but
> basically what you would be looking for is the 24 volt, white, dual contact,
> single intensity, 15 mm 1142 bayonet base. The ordering designation is:
> 1142-W15-24V White LED bulb - 24V.
>
> A few days ago my order arrived and last night we tested the landing gear
> and tail lights in place. Wow!
>
> I've attached a picture of what this looks like installed. For about six
> bucks each they are the cheapest upgrades I've installed to date.
>
> Warren Hill
> N867PA Mesa, AZ
>
>
--
Didier BLOUZARD
didier.blouzard@gmail.com
0624243672
________________________________ Message 3 _____________________________________
Time: 03:41:46 AM PST US
Subject: Yak-List: Re: YAK 50 Spar attachment bracket.
From: "aerostar6" <mwlevy@btinternet.com>
Here is a poor quality catalogue photo of the part required. Better quality one
to follow.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=280992#280992
Attachments:
http://forums.matronics.com//files/yak_50_attachment_bracket_128.pdf
________________________________ Message 4 _____________________________________
Time: 04:41:35 AM PST US
From: "Jan Mevis" <jan.mevis@informavia.be>
Subject: RE: Yak-List: Re: YAK 50 Spar attachment bracket.
I would try to make it, and convince the CAA that it's at least as good as
the original part. Can't you have it made by a company who can certify it
with an EASA document?
Jan
YK50 RA2005K
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of aerostar6
Sent: maandag 11 januari 2010 12:41
Subject: Yak-List: Re: YAK 50 Spar attachment bracket.
Here is a poor quality catalogue photo of the part required. Better quality
one to follow.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=280992#280992
Attachments:
http://forums.matronics.com//files/yak_50_attachment_bracket_128.pdf
________________________________ Message 5 _____________________________________
Time: 05:12:35 AM PST US
From: Warren Hill <k7wx@earthlink.net>
Subject: Re: Yak-List: CJ-6A LED replacement bulbs
Dider,
Do not know if they are the same.
Warren Hill
N867PA Mesa, AZ
On Jan 11, 2010, at 3:07 AM, Didier Blouzard wrote:
> Hi Larry,
>
> thank for the post. Do you know if the lights are the same on the 52
or the 18T.
> It looks like!!
>
> regards
>
> Didier
>
>
>
> 2010/1/10 Warren Hill <k7wx@earthlink.net>
> Gentlemen,
>
> Larry Pine and I have been outfitting my CJ for night flight with wing
strobes and a red strobe for the top of the rudder. We were also
planning on replacing that anemic, barely visible flashlight bulb on the
tail with a LED position light / strobe from Aveo Engineering.
>
> Last week on the Internet I came across what appeared to be an exact
LED drop-in replacement for the Chinese bulb. It's 24 volt, LED cluster
[The entire original message is not included]
Message 3
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In anticipation of installing an M14P, I've removed the two existing
and perfectly functioning tachs from our CJ. If your interested in
acquiring them, contact me off list. $75 for the pair plus
shipping. ...Blitz
Sent from my iPhone
Message 4
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| Subject: | few problems solved |
over the Christmas break was able to have a look at a couple of problems on our
52 and found the following
Gen out light staying on all the time , found a couple of wires broken of a relay
in the electrical box that contains the reverse current relay.Re-soldered the
wiring and all good.
Emergency air going down in about 3 days. Pressurize system and went around all
the joints with soapy water found leak on emergency air valve in front cockpit.Remove
valve and dismantled and found o ring gone hard and cracked.
Aircraft would not start on booster coil.Removed the coil from aircraft(real fun
job) and filed points and set up unit to bench test.Tested unit on bench all
good and reinstalled in aircraft.Tried to start again but no success.Aircraft
will fire up on the mags and run fine but will not start on the booster coil.after
pulling the mag cap apart again and making sure that the high tension lead
from the coil is terminated correctly and everything else is looking as it
should be gave up and drank alot of beer.Had a thought in the middle of the night
that it could have something to do with the plugs even though they run OK
on the mags.Removed all the plugs (automotive type) and bead blasted,gaped (.022)
and washed out.Installed plugs and tried again hey presto it all works.
Hope some of this info can be useful to someone chasing similar problems
regards steve
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=281223#281223
Message 5
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| Subject: | Re: few problems solved |
Next time you pull the mag cap off on the left mag, remove the starting
coil wire and test the starting coil and wire's ability to jump a spark
to ground. It should jump almost 1/2". To do this without having the
engine turn over when you press the start button, turn off the main air
valve and bleed off all the air forward of the main air valve by
squeezing the brake handle until there is no more air in the system.
Then test the starting coil wire's spark. You said you restaked the
starting coil wire which made no difference. If it doesn't jump 1/2"
(or none at all), that's the primary reason it won't start on the
starting coil. Replace the starting coil wire. You can purchase 10' of
Hypalon 5 mm copper core wire here.
http://www.mfgsupply.com/m/c/24-8776.html
Also try cleaning the starting coil wire contact in the mag cap AND
clean the starting coil ring on the rotor.
Dennis
----- Original Message -----
From: bizbug182
To: yak-list@matronics.com
Sent: Tuesday, January 12, 2010 8:01 PM
Subject: Yak-List: few problems solved
<completeairnt@bigpond.com>
over the Christmas break was able to have a look at a couple of
problems on our 52 and found the following
Gen out light staying on all the time , found a couple of wires broken
of a relay in the electrical box that contains the reverse current
relay.Re-soldered the wiring and all good.
Emergency air going down in about 3 days. Pressurize system and went
around all the joints with soapy water found leak on emergency air
valve in front cockpit.Remove valve and dismantled and found o ring gone
hard and cracked.
Aircraft would not start on booster coil.Removed the coil from
aircraft(real fun job) and filed points and set up unit to bench
test.Tested unit on bench all good and reinstalled in aircraft.Tried to
start again but no success.Aircraft will fire up on the mags and run
fine but will not start on the booster coil.after pulling the mag cap
apart again and making sure that the high tension lead from the coil is
terminated correctly and everything else is looking as it should be gave
up and drank alot of beer.Had a thought in the middle of the night that
it could have something to do with the plugs even though they run OK on
the mags.Removed all the plugs (automotive type) and bead blasted,gaped
(.022) and washed out.Installed plugs and tried again hey presto it all
works.
Hope some of this info can be useful to someone chasing similar
problems
regards steve
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=281223#281223
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