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ZUDSJ
Joined: 29 Nov 2014
Posts: 8
Location: South Africa
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 Posted: Wed Feb 18, 2015 4:38 am Post subject: M14P Overhaul TBO |
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Hi
I am new to this forum and a new Yak 52 owner in South Africa. I wanted to
find out what the TBO is for the M14P in other countries as I believe that with the kind of flying we do (post military) and the kind of maintenance we do surely these engines can take more than 500 hours before complete overhaul?
I am aware that this topic has probably been debated to death but really keen on hearing from other Yak owners in other countries.
Many thanks
Jason-South Africa
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richard.goode(at)russiana
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| Posted: Wed Feb 18, 2015 6:25 am Post subject: M14P Overhaul TBO |
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The official factory TBO is 750 hours before first overhaul, but 500 hours
for the M 14 PF. Then the TBO is 500 hours.
To the best of my knowledge this must be observed in all European countries,
although some will give a 10% extension "on condition".
In other countries with a more liberal approach, the engines can operate "on
condition", and I know of a number that are working fine at 1500 hours.
Indeed the same basic engine is used to power generating sets in Siberian
oilfields, and they expect to get 20,000 hours, but of course operating
continuously with very few start-ups and at about 55/60% power.
Richard Goode Aerobatics
Rhodds Farm
Lyonshall
Hereford
HR5 3LW
Tel: +44 (0) 1544 340120
Fax: +44 (0) 1544 340129
www.russianaeros.com
--
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mark.bitterlich(at)navy.m
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| Posted: Wed Feb 18, 2015 11:45 am Post subject: M14P Overhaul TBO |
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Some comments to add. Of course your mileage may vary from engine to engine, but mine lost the first mag around 600 hours due to an internal gear failure. It locked up and sheared the coupling. Replaced it, and 100 hours later, the other mag quit dead due to a bad coil. I found it interesting that both mags quit within 100 hours of each other.
Other than that, at 800+ hours, I have lost the compressor once, and have had to repair exhaust valves on two cylinders from leading accumulation on the exhaust valve. That happened very early on the engine and I was running it at low RPM and low power settings for cross countries. I since added ... wait for it... wait for it... *MARVEL MYSTERY OIL* to the fuel and started running the engine much harder and all the leading problems just went away.
Lost an oil screen and course fuel screen, oil pressure and fuel pressure transducer, and two primer hoses. They seem to go bad constantly, no idea why really. Possibly I am over-pressurizing them when priming? Don't know.
Bottom line, I believe having your mags rebuilt after about 500 hours or so might not be a bad idea? Not sure, but I don't like to lose mags in flight. Of course, that's why there are TWO! 
Mark
--
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rocknpilot(at)hotmail.com
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| Posted: Thu Feb 19, 2015 6:59 am Post subject: M14P Overhaul TBO |
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'Just gotta say that I REALLY appreciate you guys sharing this stuff. My motor is at about 750 hours right now and it's nice to have reference numbers to base observations on. As many of you know, my pneumatic issues were extensive. Lunching 3 compressors was grounding, expensive and substantially disheartening. But finally logging 75 trouble-free hours in the air restored much faith in the beast. Today, as we WI cheeseheads shiver through yet another below-zero day, I still find myself slowly winding up for those hot, Summer days w/ the hangar door wide open and density altitude becoming a happy concern. Yes...I LIVE for those 3 WEEKS in Wisconsin!
Rico Jaeger
915 S. 11th Ave.
Wausau, WI. 54401
715.529.7426
//
1966 Cessna 150F ^/---//-X
N8558G //Hangar #35 / AUW
//
1992 Yakovlev Yak 52 ^/---//-X
N21YK //
Hangar #21 / AUW
[quote] From: mark.bitterlich(at)navy.mil
To: yak-list(at)matronics.com
Subject: RE: M14P Overhaul TBO
Date: Wed, 18 Feb 2015 19:43:59 +0000
--> Yak-List message posted by: "Bitterlich, Mark G CIV NAVAIR, WD" <mark.bitterlich(at)navy.mil>
Some comments to add. Of course your mileage may vary from engine to engine, but mine lost the first mag around 600 hours due to an internal gear failure. It locked up and sheared the coupling. Replaced it, and 100 hours later, the other mag quit dead due to a bad coil. I found it interesting that both mags quit within 100 hours of each other.
Other than that, at 800+ hours, I have lost the compressor once, and have had to repair exhaust valves on two cylinders from leading accumulation on the exhaust valve. That happened very early on the engine and I was running it at low RPM and low power settings for cross countries. I since added ... wait for it... wait for it... *MARVEL MYSTERY OIL* to the fuel and started running the engine much harder and all the leading problems just went away.
Lost an oil screen and course fuel screen, oil pressure and fuel pressure transducer, and two primer hoses. They seem to go bad constantly, no idea why really. Possibly I am over-pressurizing them when priming? Don't know.
Bottom line, I believe having your mags rebuilt after about 500 hours or so might not be a bad idea? Not sure, but I don't like to lose mags in flight. Of course, that's why there are TWO!
Mark
--
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dsavarese0812(at)bellsout
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| Posted: Thu Feb 19, 2015 7:05 am Post subject: M14P Overhaul TBO |
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Isn't that an exceptionally long summer Rico? 
Dennis
A. Dennis Savarese
334-546-8182 (mobile)
www.yak-52.com
Skype - Yakguy1
On 2/19/2015 8:58 AM, Rico Jaeger wrote:
[quote] 'Just gotta say that I REALLY appreciate you guys sharing this stuff.
My motor is at about 750 hours right now and it's nice to have
reference numbers to base observations on. As many of you know, my
pneumatic issues were extensive. Lunching 3 compressors was grounding,
expensive and substantially disheartening. But finally logging 75
trouble-free hours in the air restored much faith in the beast. Today,
as we WI cheeseheads shiver through yet another below-zero day, I
still find myself slowly winding up for those hot, Summer days w/ the
hangar door wide open and density altitude becoming a happy concern.
Yes...I LIVE for those 3 WEEKS in Wisconsin!
Rico Jaeger
915 S. 11th Ave.
Wausau, WI. 54401
715.529.7426
//
1966 Cessna 150F ^/---//-X
N8558G //
Hangar #35 / AUW
//
1992 Yakovlev Yak 52 ^/---//-X
N21YK //
Hangar #21 / AUW
> From: mark.bitterlich(at)navy.mil
> To: yak-list(at)matronics.com
> Subject: RE: M14P Overhaul TBO
> Date: Wed, 18 Feb 2015 19:43:59 +0000
>
>
<mark.bitterlich(at)navy.mil>
>
> Some comments to add. Of course your mileage may vary from engine to
engine, but mine lost the first mag around 600 hours due to an
internal gear failure. It locked up and sheared the coupling. Replaced
it, and 100 hours later, the other mag quit dead due to a bad coil. I
found it interesting that both mags quit within 100 hours of each other.
>
> Other than that, at 800+ hours, I have lost the compressor once, and
have had to repair exhaust valves on two cylinders from leading
accumulation on the exhaust valve. That happened very early on the
engine and I was running it at low RPM and low power settings for
cross countries. I since added ... wait for it... wait for it...
*MARVEL MYSTERY OIL* to the fuel and started running the engine much
harder and all the leading problems just went away.
>
> Lost an oil screen and course fuel screen, oil pressure and fuel
pressure transducer, and two primer hoses. They seem to go bad
constantly, no idea why really. Possibly I am over-pressurizing them
when priming? Don't know.
>
> Bottom line, I believe having your mags rebuilt after about 500
hours or so might not be a bad idea? Not sure, but I don't like to
lose mags in flight. Of course, that's why there are TWO!
>
> Mark
>
>
> --
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rocknpilot(at)hotmail.com
Guest
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| Posted: Thu Feb 19, 2015 7:30 am Post subject: M14P Overhaul TBO |
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OK. You got me Dennis...ONE week. (But what a week!!)
Rico Jaeger
915 S. 11th Ave.
Wausau, WI. 54401
715.529.7426
//
1966 Cessna 150F ^/---//-X
N8558G //Hangar #35 / AUW
//
1992 Yakovlev Yak 52 ^/---//-X
N21YK //Hangar #21 / AUW
[quote] Date: Thu, 19 Feb 2015 09:04:32 -0600
From: dsavarese0812(at)bellsouth.net
To: yak-list(at)matronics.com
Subject: Re: M14P Overhaul TBO
Isn't that an exceptionally long summer Rico?
Dennis
A. Dennis Savarese
334-546-8182 (mobile)
www.yak-52.com
Skype - Yakguy1
On 2/19/2015 8:58 AM, Rico Jaeger wrote:
> 'Just gotta say that I REALLY appreciate you guys sharing this stuff.
> My motor is at about 750 hours right now and it's nice to have
> reference numbers to base observations on. As many of you know, my
> pneumatic issues were extensive. Lunching 3 compressors was grounding,
> expensive and substantially disheartening. But finally logging 75
> trouble-free hours in the air restored much faith in the beast. Today,
> as we WI cheeseheads shiver through yet another below-zero day, I
> still find myself slowly winding up for those hot, Summer days w/ the
> hangar door wide open and density altitude becoming a happy concern.
> Yes...I LIVE for those 3 WEEKS in Wisconsin!
>
> Rico Jaeger
> 915 S. 11th Ave.
> Wausau, WI. 54401
> 715.529.7426
> //
> 1966 Cessna 150F ^/---//-X
> N8558G //
> Hangar #35 / AUW
> //
> 1992 Yakovlev Yak 52 ^/---//-X
> N21YK //
> Hangar #21 / AUW
>
>
>
>
> > From: mark.bitterlich(at)navy.mil
> > To: yak-list(at)matronics.com
> > Subject: RE: M14P Overhaul TBO
> > Date: Wed, 18 Feb 2015 19:43:59 +0000
> >
> >
> <mark.bitterlich(at)navy.mil>
> >
> > Some comments to add. Of course your mileage may vary from engine to
> engine, but mine lost the first mag around 600 hours due to an
> internal gear failure. It locked up and sheared the coupling. Replaced
> it, and 100 hours later, the other mag quit dead due to a bad coil. I
> found it interesting that both mags quit within 100 hours of each other
| | - The Matronics Yak-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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dsavarese0812(at)bellsout
Guest
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| Posted: Thu Feb 19, 2015 7:32 am Post subject: M14P Overhaul TBO |
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)))
A. Dennis Savarese
334-546-8182 (mobile)
www.yak-52.com
Skype - Yakguy1
On 2/19/2015 9:30 AM, Rico Jaeger wrote:
[quote] OK. You got me Dennis...ONE week. (But what a week!!)
Rico Jaeger
915 S. 11th Ave.
Wausau, WI. 54401
715.529.7426
//
1966 Cessna 150F ^/---//-X
N8558G //
Hangar #35 / AUW
//
1992 Yakovlev Yak 52 ^/---//-X
N21YK //
Hangar #21 / AUW
> Date: Thu, 19 Feb 2015 09:04:32 -0600
> From: dsavarese0812(at)bellsouth.net
> To: yak-list(at)matronics.com
> Subject: Re: M14P Overhaul TBO
>
>
<dsavarese0812(at)bellsouth.net>
>
> Isn't that an exceptionally long summer Rico?
> Dennis
>
> A. Dennis Savarese
> 334-546-8182 (mobile)
> www.yak-52.com
> Skype - Yakguy1
>
> On 2/19/2015 8:58 AM, Rico Jaeger wrote:
> > 'Just gotta say that I REALLY appreciate you guys sharing this stuff.
> > My motor is at about 750 hours right now and it's nice to have
> > reference numbers to base observations on. As many of you know, my
> > pneumatic issues were extensive. Lunching 3 compressors was
grounding,
> > expensive and substantially disheartening. But finally logging 75
> > trouble-free hours in the air restored much faith in the beast.
Today,
> > as we WI cheeseheads shiver through yet another below-zero day, I
> > still find myself slowly winding up for those hot, Summer days w/ the
> > hangar door wide open and density altitude becoming a happy concern.
> > Yes...I LIVE for those 3 WEEKS in Wisconsin!
> >
> > Rico Jaeger
> > 915 S. 11th Ave.
> > Wausau, WI. 54401
> > 715.529.7426
> > //
> > 1966 Cessna 150F ^/---//-X
> > N8558G //
> > Hangar #35 / AUW
> > //
> > 1992 Yakovlev Yak 52 ^/---//-X
> > N21YK //
> > Hangar #21 / AUW
> >
> >
> >
> >
> > > From: mark.bitterlich(at)navy.mil
> > > To: yak-list(at)matronics.com
> > > Subject: RE: M14P Overhaul TBO
> > > Date: Wed, 18 Feb 2015 19:43:59 +0000
> > >
> > >
> > <mark.bitterlich(at)navy.mil>
> > >
> > > Some comments to add. Of course your mileage may vary from
engine to
> > engine, but mine lost the first mag around 600 hours due to an
> > internal gear failure. It locked up and sheared the coupling.
Replaced
> > it, and 100 hours later, the other mag quit dead due to a bad coil. I
> > found it interesting that both mags quit within 100 hours of each
other.
> > >
> > > Other than that, at 800+ hours, I have lost the compressor once,
and
> > have had to repair exhaust valves on two cylinders from leading
> > accumulation on the exhaust valve. That happened very early on the
> > engine and I was running it at low RPM and low power settings for
> > cross countries. I since added ... wait for it... wait for it...
> > *MARVEL MYSTERY OIL* to the fuel and started running the engine much
> > harder and all the leading problems just went away.
> > >
> > > Lost an oil screen and course fuel screen, oil pressure and fuel
> > pressure transducer, and two primer hoses. They seem to go bad
> > constantly, no idea why really. Possibly I am over-pressurizing them
> > when priming? Don't know.
> > >
> > > Bottom line, I believe having your mags rebuilt after about 500
> > hours or so might not be a bad idea? Not sure, but I don't like to
> > lose mags in flight. Of course, that's why there are TWO!
> > >
> > > Mark
> > >
> > >
> > > --
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ZUDSJ
Joined: 29 Nov 2014
Posts: 8
Location: South Africa
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Aviamotorai
Joined: 19 Apr 2018
Posts: 1
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| Posted: Fri Apr 20, 2018 8:54 am Post subject: Re: M14P Overhaul TBO |
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Visit www.aviamotorai.com, we provide approved services from repair to overhaul for M14P and M14PF engines. Feel free to contact us on: Email: info(at)aviamotorai.com
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