Today's Message Index:
----------------------
1. 10:22 AM - RPM Unit (shinden33)
2. 10:36 AM - Re: RPM Unit (doug sapp)
3. 10:53 AM - Re: RPM Unit (shinden33)
4. 11:14 AM - Re: Re: RPM Unit (Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E)
5. 11:19 AM - Re: RPM Unit (Gill Gutierrez)
6. 11:35 AM - Re: RPM Unit (Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E)
7. 12:33 PM - Re: RPM Unit (shinden33)
8. 01:22 PM - Re: Re: RPM Unit (Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E)
9. 05:06 PM - Re: RPM Unit (shinden33)
10. 06:32 PM - Baklan Radio Issue (TXYak)
11. 08:40 PM - Re: Baklan Radio Issue (keithmckinley)
12. 10:55 PM - Re: RPM Unit (Mike Beresford)
13. 11:29 PM - Re: Baklan Radio Issue (Nigel Willson)
Message 1
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All,
Lost my RPM indication on my '52 last weekend. Pulled the cannon plug on the back
of the RPM sender apart and did not find any bad connections. Continuity
checked the wires to the back of the gauge and they all checked as well.
Question 1. There are three pins coming out of the sender and four going into
the back of the instrument. Where does the fourth one go?
Question 2. Anyone have and RPM sender and how hard is it to replace?
N8252
Scott
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=241687#241687
Message 2
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Did you loose indication in BOTH pits?
Doug
On Tue, Apr 28, 2009 at 10:21 AM, shinden33 <scott.t.glaser@gmail.com>wrote:
>
> All,
>
> Lost my RPM indication on my '52 last weekend. Pulled the cannon plug on
> the back of the RPM sender apart and did not find any bad connections.
> Continuity checked the wires to the back of the gauge and they all checked
> as well.
>
> Question 1. There are three pins coming out of the sender and four going
> into the back of the instrument. Where does the fourth one go?
>
> Question 2. Anyone have and RPM sender and how hard is it to replace?
>
> N8252
> Scott
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=241687#241687
>
>
--
Always Yakin,
Doug Sapp
Phone 509-826-4610
Fax 509-826-3644
Message 3
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Yes. I verified that it was not a single instrument failure.
--------
The Defiant Company
www.thedefiantcompany.com
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=241694#241694
Message 4
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The Tach Gen is very easy to replace. Assuming the M-14. Not sure of
the Housai, but it probably is close to the same. The Tach Gen on the
M-14 has a big bright silver colored ring with little finger type
indentations that allows it to be spun right off. You un-spin (new
word!) the ring, and pull straight out on the tach gen and out it comes.
Take the tach gen shaft and clamp it into an electric drill. Spin the
crap out of it and measure the AC voltage coming out. Should be the
same voltage on each pin at the same RPM. If not, it is bad.
Mark Bitterlich
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of shinden33
Sent: Tuesday, April 28, 2009 1:53 PM
Subject: Yak-List: Re: RPM Unit
Yes. I verified that it was not a single instrument failure.
--------
The Defiant Company
www.thedefiantcompany.com
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=241694#241694
Message 5
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I had a similar problem with my CJ. Continuity checked ok but problem
persisted. I resoldered the connections in the cannon plug and made sure
female ends were tight, problem went away.
Gill
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of shinden33
Sent: Tuesday, April 28, 2009 10:21 AM
Subject: Yak-List: RPM Unit
All,
Lost my RPM indication on my '52 last weekend. Pulled the cannon plug on
the back of the RPM sender apart and did not find any bad connections.
Continuity checked the wires to the back of the gauge and they all checked
as well.
Question 1. There are three pins coming out of the sender and four going
into the back of the instrument. Where does the fourth one go?
Question 2. Anyone have and RPM sender and how hard is it to replace?
N8252
Scott
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=241687#241687
Message 6
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Gill is absolutely correct.
More on that:
The solder used in those cannon plugs is extremely poor quality and it
develops cold fractures very easily. It is the FIRST PLACE TO GO when RPM
indications go bad. The wire itself is also very questionable. I
resoldered mine.. More than once. Then I said screw it and soldered in high
quality Teflon insulated aircraft quality wire to the plug, went back about
a foot and used environmental splices to splice back into the Russian wire.
Problem gone forever. Then the Tach Gen itself went bad. Came up with the
drill method to verify it. This also works with the cannon plug hooked up
and driving the actual instruments in the cockpits.
Mark Bitterlich
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Gill Gutierrez
Sent: Tuesday, April 28, 2009 2:21 PM
Subject: RE: Yak-List: RPM Unit
I had a similar problem with my CJ. Continuity checked ok but problem
persisted. I resoldered the connections in the cannon plug and made sure
female ends were tight, problem went away.
Gill
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of shinden33
Sent: Tuesday, April 28, 2009 10:21 AM
Subject: Yak-List: RPM Unit
All,
Lost my RPM indication on my '52 last weekend. Pulled the cannon plug on
the back of the RPM sender apart and did not find any bad connections.
Continuity checked the wires to the back of the gauge and they all checked
as well.
Question 1. There are three pins coming out of the sender and four going
into the back of the instrument. Where does the fourth one go?
Question 2. Anyone have and RPM sender and how hard is it to replace?
N8252
Scott
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=241687#241687
Message 7
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What is voltage output range roughly?
--------
The Defiant Company
www.thedefiantcompany.com
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=241714#241714
Message 8
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I really do not remember.
More than a few, less than a lot.
I'll try to remember to go spin one and see. However, very simply the
faster you turn it, the more it will put out, and not by millivolts, but by
10's of volts.
Mark
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of shinden33
Sent: Tuesday, April 28, 2009 15:32
Subject: Yak-List: Re: RPM Unit
What is voltage output range roughly?
--------
The Defiant Company
www.thedefiantcompany.com
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=241714#241714
Message 9
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Good enough. I'll give it a shot and see how it goes. Thanks for the gouge all!
S
--------
The Defiant Company
www.thedefiantcompany.com
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=241777#241777
Message 10
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| Subject: | Baklan Radio Issue |
I have the Baklan Radio in my 52. I just recently got the plane flying and have
never had the radio working properly. It transmits great but doesn't receive
anything. I have tried a different radio(that does work) and got the same result.
I tried a different antenna with the same result. I tried a different
amplifier with the same result. The intercom works perfectly and like I said
the radio transmissions were reported clear by a friend about 30 miles away.
Any suggestions?
Chris Keating
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=241804#241804
Message 11
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| Subject: | Re: Baklan Radio Issue |
Hey Chris...Keith here.. drop me a line.
--------
Keith McKinley
700 HS
KFIT
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=241840#241840
Message 12
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Hi all
I recently had trouble with my RPM indicators. Also checked wiring continuity,
all seemed fine. Turned out that the problem was in the generator itself, it had
"lost" a phase. Initial test done by checking the voltage in turn between each
pin and the earth. Replaced the generator, problem went away. Thanks to Mark
B for his sound advice on that one.
A few points, which some of the experts may wish to confirm:
- As far as I can make out,the fourth pin on the connector in the cockpit is not
used.
- Check your wiring layout before disconnecting anything. When I first checked
my wiring, I found pin 2 in the engine bay was connected to pin 3 in the cockpit,
and pin 3 in the engine bay to pin 2 in the cockpit. I assumed that this was
an error, so I connected pin 1 to 1,pin 2 to 2, pin 3 to 3. RPM indicator then
proceeded to work backwards! Swapped wires 2 and 3 around, indicators work
properly again.
- I have been advised by a few people to ensure that the wires are properly screened.
You may also want to check the connector plug in the engine bay. Some time back
I had erratic indications, sometimes it worked, sometimes it didn't. I found
that the insert (bakelite) was loose within the cannon plug, and the pins themselves
were loose within the insert. Ss I tightened the plug onto the tacho generator
it simply pushed the pins backwards resulting in a very poor contact.
Bit of epoxy sorted the problem out.
Blue skies
Mike
--- On Tue, 28/4/09, Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E <mark.bitterlich@navy.mil>
wrote:
> From: Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E <mark.bitterlich@navy.mil>
> Subject: RE: Yak-List: Re: RPM Unit
> To: yak-list@matronics.com
> Date: Tuesday, 28 April, 2009, 11:21 PM
> I really do not remember.
>
> More than a few, less than a lot.
>
> I'll try to remember to go spin one and see. However,
> very simply the
> faster you turn it, the more it will put out, and not by
> millivolts, but by
> 10's of volts.
>
> Mark
>
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com]
> On Behalf Of shinden33
> Sent: Tuesday, April 28, 2009 15:32
> To: yak-list@matronics.com
> Subject: Yak-List: Re: RPM Unit
>
>
> What is voltage output range roughly?
>
> --------
> The Defiant Company
> www.thedefiantcompany.com
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=241714#241714
>
>
>
>
>
>
>
>
>
>
>
Message 13
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| Subject: | Re: Baklan Radio Issue |
I had similar problems. Spent a furtune fault finding. In end had to
give up due cost, and installed a garmin sl40.
Nigel
On 29 Apr 2009, at 02:31, "TXYak" <CKeating@peoplepc.com> wrote:
>
> I have the Baklan Radio in my 52. I just recently got the plane
> flying and have never had the radio working properly. It transmits
> great but doesn't receive anything. I have tried a different
> radio(that does work) and got the same result. I tried a different
> antenna with the same result. I tried a different amplifier with
> the same result. The intercom works perfectly and like I said the
> radio transmissions were reported clear by a friend about 30 miles
> away. Any suggestions?
>
> Chris Keating
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=241804#241804
>
>
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