Today's Message Index:
----------------------
1. 06:59 AM - Re: M14P Overhaul TBO (Rico Jaeger)
2. 07:05 AM - Re: M14P Overhaul TBO (A. Dennis Savarese)
3. 07:30 AM - Re: M14P Overhaul TBO (Rico Jaeger)
4. 07:32 AM - Re: M14P Overhaul TBO (A. Dennis Savarese)
5. 08:42 AM - Compressor cooling (Byron Fox)
Message 1
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| Subject: | M14P Overhaul TBO |
'Just gotta say that I REALLY appreciate you guys sharing this stuff. My mo
tor is at about 750 hours right now and it's nice to have reference numbers
to base observations on. As many of you know=2C my pneumatic issues were e
xtensive. Lunching 3 compressors was grounding=2C expensive and substantial
ly disheartening. But finally logging 75 trouble-free hours in the air rest
ored much faith in the beast. Today=2C as we WI cheeseheads shiver through
yet another below-zero day=2C I still find myself slowly winding up for tho
se hot=2C Summer days w/ the hangar door wide open and density altitude bec
oming a happy concern. Yes...I LIVE for those 3 WEEKS in Wisconsin! :)
Rico Jaeger
915 S. 11th Ave.
Wausau=2C 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@navy.mil
> To: yak-list@matronics.com
> Subject: RE: Yak-List: M14P Overhaul TBO
> Date: Wed=2C 18 Feb 2015 19:43:59 +0000
>
mark.bitterlich@navy.mil>
>
> Some comments to add. Of course your mileage may vary from engine to en
gine=2C but mine lost the first mag around 600 hours due to an internal gea
r failure. It locked up and sheared the coupling. Replaced it=2C and 100
hours later=2C the other mag quit dead due to a bad coil. I found it inter
esting that both mags quit within 100 hours of each other.
>
> Other than that=2C at 800+ hours=2C I have lost the compressor once=2C an
d have had to repair exhaust valves on two cylinders from leading accumulat
ion 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 a
nd started running the engine much harder and all the leading problems just
went away.
>
> Lost an oil screen and course fuel screen=2C oil pressure and fuel pressu
re transducer=2C and two primer hoses. They seem to go bad constantly=2C n
o idea why really. Possibly I am over-pressurizing them when priming? Don
't know.
>
> Bottom line=2C I believe having your mags rebuilt after about 500 hours o
r so might not be a bad idea? Not sure=2C but I don't like to lose mags in
flight. Of course=2C that's why there are TWO! :-)
>
> Mark
>
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@m
atronics.com] On Behalf Of Richard Goode
> Sent: Wednesday=2C February 18=2C 2015 9:24 AM
> To: yak-list@matronics.com
> Subject: RE: Yak-List: M14P Overhaul TBO
>
> --> <richard.goode@russianaeros.com>
>
> The official factory TBO is 750 hours before first overhaul=2C but 500 ho
urs for the M 14 PF. Then the TBO is 500 hours.
>
> To the best of my knowledge this must be observed in all European countri
es=2C although some will give a 10% extension "on condition".
>
> In other countries with a more liberal approach=2C the engines can operat
e "on condition"=2C and I know of a number that are working fine at 1500 ho
urs.
> Indeed the same basic engine is used to power generating sets in Siberian
oilfields=2C and they expect to get 20=2C000 hours=2C but of course operat
ing 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
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of ZUDSJ
> Sent: 18 February 2015 12:38
> To: yak-list@matronics.com
> Subject: Yak-List: M14P Overhaul TBO
>
>
> Hi
>
> I am new to this forum and a new Yak 52 owner in South Africa. I wanted t
o find out what the TBO is for the M14P in other countries as I believe tha
t 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 ov
erhaul?
> 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
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=438473#438473
>
>
>
>
>
>
>
>
>
>
>
> --
> This message has been scanned for viruses and dangerous content by MailSc
anner=2C and is believed to be clean.
>
>
>
>
>
>
>
===========
===========
===========
===========
>
>
>
Message 2
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| 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@navy.mil
> > To: yak-list@matronics.com
> > Subject: RE: Yak-List: M14P Overhaul TBO
> > Date: Wed, 18 Feb 2015 19:43:59 +0000
> >
> <mark.bitterlich@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
> >
> >
> > -----Original Message-----
> > From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of Richard Goode
> > Sent: Wednesday, February 18, 2015 9:24 AM
> > To: yak-list@matronics.com
> > Subject: RE: Yak-List: M14P Overhaul TBO
> >
> > --> <richard.goode@russianaeros.com>
> >
> > 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
> >
> > -----Original Message-----
> > From: owner-yak-list-server@matronics.com
> > [mailto:owner-yak-list-server@matronics.com] On Behalf Of ZUDSJ
> > Sent: 18 February 2015 12:38
> > To: yak-list@matronics.com
> > Subject: Yak-List: M14P Overhaul TBO
> >
> >
> > 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
> >
> >
> >
> >
> > Read this topic online here:
> >
> > http://forums.matronics.com/viewtopic.php?p=438473#438473
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > --
> > This message has been scanned for viruses and dangerous content by
> MailScanner, and is believed to be clean.
> >
> >
> >= Archive Search & Download, 7-Day Browse, Chat, FAQ,
> &g========================>
> >
> >
> *
>
>
> *
Message 3
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| Subject: | M14P Overhaul TBO |
OK. You got me Dennis...ONE week. (But what a week!!)
Rico Jaeger
915 S. 11th Ave.
Wausau=2C WI. 54401
715.529.7426
//
1966 Cessna 150F ^/---//-X
N8558G //Hangar #35 / AUW
//
1992 Yakovlev Yak 52 ^/---//-X
N21YK //Hangar #21 / AUW
> Date: Thu=2C 19 Feb 2015 09:04:32 -0600
> From: dsavarese0812@bellsouth.net
> To: yak-list@matronics.com
> Subject: Re: Yak-List: M14P Overhaul TBO
>
outh.net>
>
> Isn't that an exceptionally long summer Rico? :-) =3B-)
> Dennis
>
> A. Dennis Savarese
> 334-546-8182 (mobile)
> www.yak-52.com
> Skype - Yakguy1
>
> On 2/19/2015 8:58 AM=2C 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=2C my
> > pneumatic issues were extensive. Lunching 3 compressors was grounding
=2C
> > expensive and substantially disheartening. But finally logging 75
> > trouble-free hours in the air restored much faith in the beast. Today
=2C
> > as we WI cheeseheads shiver through yet another below-zero day=2C I
> > still find myself slowly winding up for those hot=2C 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=2C 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@navy.mil
> > > To: yak-list@matronics.com
> > > Subject: RE: Yak-List: M14P Overhaul TBO
> > > Date: Wed=2C 18 Feb 2015 19:43:59 +0000
> > >
D"
> > <mark.bitterlich@navy.mil>
> > >
> > > Some comments to add. Of course your mileage may vary from engine to
> > engine=2C but mine lost the first mag around 600 hours due to an
> > internal gear failure. It locked up and sheared the coupling. Replaced
> > it=2C and 100 hours later=2C 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=2C at 800+ hours=2C I have lost the compressor once
=2C 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=2C oil pressure and fuel
> > pressure transducer=2C and two primer hoses. They seem to go bad
> > constantly=2C no idea why really. Possibly I am over-pressurizing them
> > when priming? Don't know.
> > >
> > > Bottom line=2C I believe having your mags rebuilt after about 500
> > hours or so might not be a bad idea? Not sure=2C but I don't like to
> > lose mags in flight. Of course=2C that's why there are TWO! :-)
> > >
> > > Mark
> > >
> > >
> > > -----Original Message-----
> > > From: owner-yak-list-server@matronics.com
> > [mailto:owner-yak-list-server@matronics.com] On Behalf Of Richard Goode
> > > Sent: Wednesday=2C February 18=2C 2015 9:24 AM
> > > To: yak-list@matronics.com
> > > Subject: RE: Yak-List: M14P Overhaul TBO
> > >
> > > --> <richard.goode@russianaeros.com>
> > >
> > > The official factory TBO is 750 hours before first overhaul=2C but 50
0
> > 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=2C although some will give a 10% extension "on condition".
> > >
> > > In other countries with a more liberal approach=2C the engines can
> > operate "on condition"=2C 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=2C and they expect to get 20=2C000 hours=2C but of c
ourse
> > operating continuously with very few start-ups and at about 55/60% powe
r.
> > >
> > > Richard Goode Aerobatics
> > > Rhodds Farm
> > > Lyonshall
> > > Hereford
> > > HR5 3LW
> > >
> > > Tel: +44 (0) 1544 340120
> > > Fax: +44 (0) 1544 340129
> > > www.russianaeros.com
> > >
> > > -----Original Message-----
> > > From: owner-yak-list-server@matronics.com
> > > [mailto:owner-yak-list-server@matronics.com] On Behalf Of ZUDSJ
> > > Sent: 18 February 2015 12:38
> > > To: yak-list@matronics.com
> > > Subject: Yak-List: M14P Overhaul TBO
> > >
> > >
> > > 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
> > >
> > >
> > >
> > >
> > > Read this topic online here:
> > >
> > > http://forums.matronics.com/viewtopic.php?p=438473#438473
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > > --
> > > This message has been scanned for viruses and dangerous content by
> > MailScanner=2C and is believed to be clean.
> > >
> > >
> > >= Archive Search & Download=2C 7-Day Browse=2C Chat=2C FAQ=2C
> > &g=======================
=>
> > >
> > >
> > *
> >
> >
> > *
>
>
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===========
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===========
>
>
>
Message 4
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| Subject: | Re: M14P Overhaul TBO |
:-))))
A. Dennis Savarese
334-546-8182 (mobile)
www.yak-52.com
Skype - Yakguy1
On 2/19/2015 9:30 AM, Rico Jaeger wrote:
> 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@bellsouth.net
> > To: yak-list@matronics.com
> > Subject: Re: Yak-List: M14P Overhaul TBO
> >
> <dsavarese0812@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@navy.mil
> > > > To: yak-list@matronics.com
> > > > Subject: RE: Yak-List: M14P Overhaul TBO
> > > > Date: Wed, 18 Feb 2015 19:43:59 +0000
> > > >
> > > <mark.bitterlich@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
> > > >
> > > >
> > > > -----Original Message-----
> > > > From: owner-yak-list-server@matronics.com
> > > [mailto:owner-yak-list-server@matronics.com] On Behalf Of Richard
> Goode
> > > > Sent: Wednesday, February 18, 2015 9:24 AM
> > > > To: yak-list@matronics.com
> > > > Subject: RE: Yak-List: M14P Overhaul TBO
> > > >
> > > > --> <richard.goode@russianaeros.com>
> > > >
> > > > 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
> > > >
> > > > -----Original Message-----
> > > > From: owner-yak-list-server@matronics.com
> > > > [mailto:owner-yak-list-server@matronics.com] On Behalf Of ZUDSJ
> > > > Sent: 18 February 2015 12:38
> > > > To: yak-list@matronics.com
> > > > Subject: Yak-List: M14P Overhaul TBO
> > > >
> > > >
> > > > 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
> > > >
> > > >
> > > >
> > > >
> > > > Read this topic online here:
> > > >
> > > > http://forums.matronics.com/viewtopic.php?p=438473#438473
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > > --
> > > > This message has been scanned for viruses and dangerous content by
> > > MailScanner, and is believed to be clean.
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Message 5
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| Subject: | Compressor cooling |
Because of carbon build up, the shear pins failed twice on my M-14's compres
sor.
"Inadequate cooling," said Vladimir Yestremski.
I borrowed a "wrap-around" cooling horn from one of Vladimir's Yak 18Ts, and
had a carbon fiber horn fabricated by a fellow at our airport. See the atta
ched picture. He's now making more of them for others with the same problem.
I'll put you in touch with him if you wish.
Blitz Fox
415-307-2405
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