Today's Message Index:
----------------------
1. 12:03 PM - Diamond Doors from AvWeb (Dawson-Townsend,Timothy)
2. 06:43 PM - Re: TMXIO-540 and GAMI injectors (Alan Mekler)
3. 06:54 PM - Re: TMXIO-540 and GAMI injectors (Kelly McMullen)
4. 09:34 PM - Re: TMXIO-540 and GAMI injectors (Dave Saylor)
Message 1
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| Subject: | Diamond Doors from AvWeb |
FAA RESPONDS TO DIAMOND DOOR DEPARTURES<http://www.avweb.com/eletter/archiv
es/avflash/1711-full.html#203187>
Responding to "several reports of the rear passenger door departing the air
plane in flight" the FAA Wednesday published proposed rules for owners of c
ertain Diamond aircraft models. "Several reports" appears to translate to 3
1, according to the FAA, and affected models are DA40 and DA40F airplanes.
The FAA is proposing to change the models' "emergency open doors procedure"
via temporary revision to the aircrafts' flight manuals and apply an "impr
oved design" to an open door retention mechanism on some aircraft. The phys
ical change required for door retaining brackets would affect 428 airplanes
in the U.S. registry at an estimated cost of $245 per aircraft. But that c
hange does not affect the door locking mechanism, itself, which Diamond say
s appears to be fine ... so long as pilots actually close the door. More...
<http://www.avweb.com/eletter/archives/avflash/1711-full.html#203187>
Tim Dawson-Townsend
RV-10 40025
APRS KB1URG
tdt@aurora.aero<mailto:tdt@aurora.aero>
617-500-4812 (office)
617-905-4800 (mobile)
smaller flight
Message 2
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| Subject: | TMXIO-540 and GAMI injectors |
Kelly,
My engine has had the AD done but we did find an interesting finding. We did
the bottle test with the injectors on and we saw less fuel coming out #5
even though it had the richest injector. So now we know the problem must be
in the flow divider. Not sure what the next step will be. Will try calling
Precision tomorrow.
Alan
_____
From: owner-rv10-list-server@matronics.com
[mailto:owner-rv10-list-server@matronics.com] On Behalf Of Kelly McMullen
Sent: Sunday, August 22, 2010 8:07 PM
Subject: Re: RV10-List: TMXIO-540 and GAMI injectors
It is actually an AD on the fuel injection servos to check the security of
the plug on the side. Some have been found loose and hanging by the safety
wire.
AD 2008-08-14
SUMMARY: This document publishes in the Federal Register an amendment
adopting emergency
airworthiness directive (AD) 2008-06-51 that was sent previously to all
known U.S. owners and
operators of Lycoming Engines IO, (L)IO, TIO, (L)TIO, AEIO, AIO, IGO, IVO,
and HIO series
reciprocating engines, TCM TSIO-360-RB reciprocating engines, and Superior
Air Parts, Inc. IO-360
series reciprocating engines with certain Precision Airmotive LLC RSA-5 and
RSA-10 series fuel
injection servos. This AD results from eighteen reports of fuel injection
servo plugs, part number
(P/N) 383493, that had loosened or completely backed out of the threaded
plug hole on the regulator
cover of the fuel injection servo. These servo plugs were installed with
servo plug gasket, P/N
365533, under the plug hex-head. We are issuing this AD to prevent a lean
running engine, which
could result in a substantial loss of engine power and subsequent loss of
control of the airplane
(f) Inspect the fuel injection servo plug, P/N 383493, for looseness, by
attempting to turn it by
hand, while being careful not to damage the safety wire or seal. If the plug
moves, it is loose.
(g) If the plug is not loose, go to paragraph (i) of this AD.
(h) If the plug is loose, do the following:
(1) Carefully cut and remove the safety wire that spans between the servo
plug and regulator
cover only.
(2) Remove the servo plug while ensuring that the gasket, P/N 365533, that
is behind the plug, is
not lost. The gasket may be slightly stuck to the regulator cover.
(3) Examine the threads on the servo plug and regulator cover for damage.
Threads should be
smooth and consistent, with no burrs or chips. The servo plug outer diameter
threads should also
measure within 0.7419-0.7500-inch.
(4) If the threads on either the servo plug or the regulator cover are
damaged, or do not measure
within the limits in paragraph (h)(3) of this AD, the servo is not eligible
for any installation and must
be replaced before further flight.
(5) Inspect the gasket, P/N 365533, for tears and other damage. We are
allowing the re-use of
undamaged gaskets. Replace damaged gaskets with a new gasket, P/N 365533.
(6) When reassembling, do not install any servo plug or regulator cover that
is not eligible for
installation. Install the gasket onto the servo plug and reassemble the
servo plug to the regulator
cover.
(7) Torque the servo plug to a new, higher torque of 90-100 in-lbs, to help
maintain the proper
clamp-up force against the plug and cover.
(8) Safety wire the servo plug with 0.025-inch diameter wire to the
regulator cover. Information
on properly safety wiring the plug can be found in Precision Airmotive LLC
Mandatory Service
Bulletin No. PRS-107, Revision 1, dated March 6, 2008.
(9) Inspect all other safety wire on the servo. Replace any that are
damaged.
On 8/22/2010 4:32 PM, Alan Mekler wrote:
Patrick,
Which SB are you referring to?
Alan
_____
From: owner-rv10-list-server@matronics.com
[mailto:owner-rv10-list-server@matronics.com] On Behalf Of Patrick Thyssen
Sent: Sunday, August 22, 2010 7:24 PM
Subject: RE: RV10-List: TMXIO-540 and GAMI injectors
That's why you need to know the probes are OK. They may be giving you a
wrong signal. The coke bottle test is, undo your injector lines from the
injectors, put the same size glass bottle under them and turn on your boost
pump, fill bottle about 3/4 and see if the same amount of fuel is in all the
glass bottles. Normally you do it with your injectors on but since you have
different injectors it won't work that way.
Just my way of checking.
Patrick Thyssen
Have you done the SB on the throttle body. The gasket and G on plug. I just
checked another RV10 and he had not done it and it was loose.
--- On Sun, 8/22/10, Alan Mekler <mailto:amekler@metrocast.net>
<amekler@metrocast.net> wrote:
From: Alan Mekler <mailto:amekler@metrocast.net> <amekler@metrocast.net>
Subject: RE: RV10-List: TMXIO-540 and GAMI injectors
Patrick,
Give me the details of the coke bottle test. I'm going to try switching
probes.
The odd thing is the engine runs smooth.
Alan
_____
From: owner-rv10-list-server@matronics.com
[mailto:owner-rv10-list-server@matronics.com] On Behalf Of Patrick Thyssen
Sent: Sunday, August 22, 2010 5:53 PM
Subject: Re: RV10-List: TMXIO-540 and GAMI injectors
HAVE YOU DONE THE COKE BOTTLE TEST WITHOUT THE INJECTORS. SINCE EACH
INJECTOR WILL BE DIFFERENT NOW. HAVE YOU LOOKED AT YOUR PROBES? Maybe swap
a few probes and see what you get.
Patrick Thyssen
--- On Sun, 8/22/10, Kelly McMullen <mailto:kellym@aviating.com>
<kellym@aviating.com> wrote:
From: Kelly McMullen <mailto:kellym@aviating.com> <kellym@aviating.com>
Subject: Re: RV10-List: TMXIO-540 and GAMI injectors
<mailto:kellym@aviating.com> <kellym@aviating.com>
About the only thing left is your dry tappet clearances. Your engine
builder should be able to give you what those clearances are. Ideally
the clearances are in the middle of the allowable range and similar for
each
cylinder....................................................................
.............
Alternatively you could measure the amount of movement of each rocker
arm. Intakes should be the same and exhausts the same. Has anyone looked
inside your sump/intake manifold to ensure there is no obstruction, nor
anything loose in there? Something is wrong if your #3&4 peak last with
the leanest nozzles and #5 peaks first with the richest nozzle.
Still not understanding how the engine could be running smoothly with
that wide a difference in mixtures between cylinders.
On 8/22/2010 7:40 AM, Alan Mekler wrote:
> --> RV10-List message posted by: "Alan Mekler"
<mailto:amekler@metrocast.net> <amekler@metrocast.net>
>
> Kelly,
> I just looked at my injectors cylinder 3 and 4 have the leanest
> injectors(GAMI A) while cylinder 5 has the richest injector (Gami J plus)
> Alan
>
> -----Original Message-----
> From: owner-rv10-list-server@matronics.com
> [mailto:owner-rv10-list-server@matronics.com] On Behalf Of Kelly McMullen
> Sent: Saturday, August 21, 2010 8:13 PM
> To: rv10-list@matronics.com
> Subject: Re: RV10-List: TMXIO-540 and GAMI injectors
>
> --> RV10-List message posted by: Kelly McMullen
<mailto:kellym@aviating.com> <kellym@aviating.com>
>
> Perhaps you are working on the wrong end of the problem. #3&4 are
> peaking last, so must be too rich. The rest of the cylinders are peaking
> within 0.4gph of #5. You also will need to gather measurements every 0.2
> gph to better detect the peaks once you get those two cylinders closer
> to the rest.
>
> On 8/21/2010 3:59 PM, Alan Mekler wrote:
>> Patrick,
>>
>> Before switching to the GAMIs my cylinder #5 peaked at 2.5 gallons l
>> than my richest cylinder #3. After changing to GAMIs (my 3^rd set) I'm
>> down to a 1 gallon spread. GAMI has given me the richest injector they
>> make for cylinder # 5 but it still peaks early.
>>
>> Here is my latest flight data flying at 7000 MSL 22 inches/ 2400 rpm.
>>
>> Alan
>>
>> 13 12.5 12.1 11.7 11.3 11.0 10.5 10.3 Fuel flow gal/hr
>>
>> 1420 1438 1468 1474 1453 1438 1422 1403 cylinder #1
>>
>> 1381 1398 1428 1452 1447 1437 1412 1373 cylinder #2
>>
>> 1393 1409 1438 1456 1473 1468 1448 1414 cylinder #3
>>
>> 1400 1417 1449 1468 1477 1470 1450 1414 cylinder #4
>>
>> 1434 1467 1469 1443 1415 1411 1400 1435 cylinder # 5
>>
>> 1410 1430 1463 1474 1458 1441 1420 1397 cylinder #6
>>
>> other method
>>
>> cylinder #1 1472 peak @ 11.5
>>
>> cylinder #2 1451 peak@ 11.2
>>
>> cylinder #3 1472 peak @ 11.1
>>
>> cylinder#4 1477 peak @ 11.2
>>
>> cylinder #5 1473 peak @ 12.1
>>
>> cylinder #6 1474 peak @ 11.5
>>
>> ------------------------------------------------------------------------
>>
>> *From:* owner-rv10-list-server@matronics.com
>> [mailto:owner-rv10-list-server@matronics.com] *On Behalf Of *Patrick
>> Thyssen
>> *Sent:* Saturday, August 21, 2010 5:22 PM
>> *To:* rv10-list@matronics.com
>> *Subject:* Re: RV10-List: TMXIO-540 and GAMI injectors
>>
>> ? Have you done the coke bottle check? Has anyone messed with the
>> lines from the spider to injectors? Are we sure the lines are the
>> right ones? The other thing have you had any problems with your EGT
>> system. Could your EGT probes be bad?
>> Peaking or not peaking where they should?
>> Just a few thoughts
>> Patrick Thyssen
>>
>> --- On *Sat, 8/21/10, Alan Mekler / <mailto:amekler@metrocast.net>
<amekler@metrocast.net>/* wrote:
>>
>>
>> From: Alan Mekler <mailto:amekler@metrocast.net> <amekler@metrocast.net>
>> Subject: RV10-List: TMXIO-540 and GAMI injectors
>> To: rv10-list@matronics.com
>> Date: Saturday, August 21, 2010, 11:04 AM
>>
>> I have been trying the GAMI injectors( on the 4^th set now) but found
>> the fuel flow on the cylinders varies widely. My cylinder #5 has the
>> richest injector and it still peaks a gallon or more before the other
>> cylinders Before gamis it was 2.5 gallons.. Has any one had this
>> problem? Any solutions?
>>
>> GAMI does not why the fuel is so unbalanced in this engine. I have 95
>> hours on the engine and all compressions are good. No intake leaks.
>>
>> Alan
>>
>> N668G
>>
>>
>>
>> * *
>> * *
>> **
>> **
>> **
>> *http://www.matronics.com/Navigator?RV10-List*
>> **
>> **
>> *http://forums.matronics.com*
>> **
>> **
>> *http://www.matronics.com/contribution*
>> * *
>> *
>>
>>
>> *
>
>atronics.com/Navigator?RV10-List"
target="_blank">http://www.matronics.co=======================
http://www.matronics.com/cont===============
Navigator to
much much
href= <http://www.matronics.com/Navigator?RV10-List>
"http://www.matronics.com/Navigator?RV10-List">http://www.matronics.com/Navi
gator?RV10-List
Web
href= <http://forums.matronics.com>
"http://forums.matronics.com">http://forums.matronics.com
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===========
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or=>
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Message 3
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| Subject: | Re: TMXIO-540 and GAMI injectors |
You need to repeat the test without the injectors to know that it is not th
e
injector. You also need to verify that the line from the flow divider is
unobstructed.
On Thu, Aug 26, 2010 at 6:42 PM, Alan Mekler <amekler@metrocast.net> wrote:
> Kelly,
>
> My engine has had the AD done but we did find an interesting finding. We
> did the bottle test with the injectors on and we saw less fuel coming out
#5
> even though it had the richest injector. So now we know the problem must
be
> in the flow divider. Not sure what the next step will be. Will try callin
g
> Precision tomorrow.
>
> Alan
>
>
> ------------------------------
>
> *From:* owner-rv10-list-server@matronics.com [mailto:
> owner-rv10-list-server@matronics.com] *On Behalf Of *Kelly McMullen
> *Sent:* Sunday, August 22, 2010 8:07 PM
>
> *To:* rv10-list@matronics.com
> *Subject:* Re: RV10-List: TMXIO-540 and GAMI injectors
>
>
> It is actually an AD on the fuel injection servos to check the security o
f
> the plug on the side. Some have been found loose and hanging by the safet
y
> wire.
> AD 2008-08-14
> SUMMARY: This document publishes in the Federal Register an amendment
> adopting emergency
> airworthiness directive (AD) 2008-06-51 that was sent previously to all
> known U.S. owners and
> operators of Lycoming Engines IO, (L)IO, TIO, (L)TIO, AEIO, AIO, IGO, IVO
,
> and HIO series
> reciprocating engines, TCM TSIO-360-RB reciprocating engines, and Superio
r
> Air Parts, Inc. IO-360
> series reciprocating engines with certain Precision Airmotive LLC RSA-5 a
nd
> RSA-10 series fuel
> injection servos. This AD results from eighteen reports of fuel injection
> servo plugs, part number
> (P/N) 383493, that had loosened or completely backed out of the threaded
> plug hole on the regulator
> cover of the fuel injection servo. These servo plugs were installed with
> servo plug gasket, P/N
> 365533, under the plug hex-head. We are issuing this AD to prevent a lean
> running engine, which
> could result in a substantial loss of engine power and subsequent loss of
> control of the airplane
>
> (f) Inspect the fuel injection servo plug, P/N 383493, for looseness, by
> attempting to turn it by
> hand, while being careful not to damage the safety wire or seal. If the
> plug moves, it is loose.
> (g) If the plug is not loose, go to paragraph (i) of this AD.
> (h) If the plug is loose, do the following:
> (1) Carefully cut and remove the safety wire that spans between the servo
> plug and regulator
> cover only.
> (2) Remove the servo plug while ensuring that the gasket, P/N 365533, tha
t
> is behind the plug, is
> not lost. The gasket may be slightly stuck to the regulator cover.
> (3) Examine the threads on the servo plug and regulator cover for damage.
> Threads should be
> smooth and consistent, with no burrs or chips. The servo plug outer
> diameter threads should also
> measure within 0.7419-0.7500-inch.
> (4) If the threads on either the servo plug or the regulator cover are
> damaged, or do not measure
> within the limits in paragraph (h)(3) of this AD, the servo is not eligib
le
> for any installation and must
> be replaced before further flight.
> (5) Inspect the gasket, P/N 365533, for tears and other damage. We are
> allowing the re-use of
> undamaged gaskets. Replace damaged gaskets with a new gasket, P/N 365533.
> (6) When reassembling, do not install any servo plug or regulator cover
> that is not eligible for
> installation. Install the gasket onto the servo plug and reassemble the
> servo plug to the regulator
> cover.
> (7) Torque the servo plug to a new, higher torque of 90-100 in-lbs, to he
lp
> maintain the proper
> clamp-up force against the plug and cover.
> (8) Safety wire the servo plug with 0.025-inch diameter wire to the
> regulator cover. Information
> on properly safety wiring the plug can be found in Precision Airmotive LL
C
> Mandatory Service
> Bulletin No. PRS-107, Revision 1, dated March 6, 2008.
> (9) Inspect all other safety wire on the servo. Replace any that are
> damaged.
>
>
> On 8/22/2010 4:32 PM, Alan Mekler wrote:
>
> Patrick,
>
> Which SB are you referring to?
>
> Alan
>
>
> ------------------------------
>
> *From:* owner-rv10-list-server@matronics.com [
> mailto:owner-rv10-list-server@matronics.com<owner-rv10-list-server@matron
ics.com>]
> *On Behalf Of *Patrick Thyssen
> *Sent:* Sunday, August 22, 2010 7:24 PM
> *To:* rv10-list@matronics.com
> *Subject:* RE: RV10-List: TMXIO-540 and GAMI injectors
>
>
> That's why you need to know the probes are OK. They may be giving you a
> wrong signal. The coke bottle test is, undo your injector lines from the
> injectors, put the same size glass bottle under them and turn on your boo
st
> pump, fill bottle about 3/4 and see if the same amount of fuel is in all
the
> glass bottles. Normally you do it with your injectors on but since you ha
ve
> different injectors it won't work that way.
> Just my way of checking.
> Patrick Thyssen
> Have you done the SB on the throttle body. The gasket and G on plug. I
> just checked another RV10 and he had not done it and it was loose.
>
>
> --- On *Sun, 8/22/10, Alan Mekler <amekler@metrocast.net><amekler@metroca
st.net>
> * wrote:
>
>
> From: Alan Mekler <amekler@metrocast.net> <amekler@metrocast.net>
> Subject: RE: RV10-List: TMXIO-540 and GAMI injectors
> To: rv10-list@matronics.com
> Date: Sunday, August 22, 2010, 6:00 PM
>
> Patrick,
>
> Give me the details of the coke bottle test. I=92m going to try switchin
g
> probes.
>
> The odd thing is the engine runs smooth.
>
> Alan
>
>
> ------------------------------
>
> *From:* owner-rv10-list-server@matronics.com [
> mailto:owner-rv10-list-server@matronics.com<owner-rv10-list-server@matron
ics.com>]
> *On Behalf Of *Patrick Thyssen
> *Sent:* Sunday, August 22, 2010 5:53 PM
> *To:* rv10-list@matronics.com
> *Subject:* Re: RV10-List: TMXIO-540 and GAMI injectors
>
>
> HAVE YOU DONE THE COKE BOTTLE TEST WITHOUT THE INJECTORS. SINCE EACH
> INJECTOR WILL BE DIFFERENT NOW. HAVE YOU LOOKED AT YOUR PROBES? Maybe sw
ap
> a few probes and see what you get.
> Patrick Thyssen
>
> --- On *Sun, 8/22/10, Kelly McMullen <kellym@aviating.com><kellym@aviatin
g.com>
> * wrote:
>
>
> From: Kelly McMullen <kellym@aviating.com> <kellym@aviating.com>
> Subject: Re: RV10-List: TMXIO-540 and GAMI injectors
> To: rv10-list@matronics.com
> Date: Sunday, August 22, 2010, 3:46 PM
>
lym@aviating.com>
>
>
> About the only thing left is your dry tappet clearances. Your engine
> builder should be able to give you what those clearances are. Ideally
> the clearances are in the middle of the allowable range and similar for
> each
> cylinder.................................................................
................
>
> Alternatively you could measure the amount of movement of each rocker
> arm. Intakes should be the same and exhausts the same. Has anyone looked
> inside your sump/intake manifold to ensure there is no obstruction, nor
> anything loose in there? Something is wrong if your #3&4 peak last with
> the leanest nozzles and #5 peaks first with the richest nozzle.
> Still not understanding how the engine could be running smoothly with
> that wide a difference in mixtures between cylinders.
>
> On 8/22/2010 7:40 AM, Alan Mekler wrote:
> > --> RV10-List message posted by: "Alan Mekler"<amekler@metrocast.net><
amekler@metrocast.net>
> >
> > Kelly,
> > I just looked at my injectors cylinder 3 and 4 have the leanest
> > injectors(GAMI A) while cylinder 5 has the richest injector (Gami J plu
s)
> > Alan
> >
> > -----Original Message-----
> > From: owner-rv10-list-server@matronics.com
> > [mailto:owner-rv10-list-server@matronics.com<owner-rv10-list-server@mat
ronics.com>]
> On Behalf Of Kelly McMullen
> > Sent: Saturday, August 21, 2010 8:13 PM
> > To: rv10-list@matronics.com
> > Subject: Re: RV10-List: TMXIO-540 and GAMI injectors
> >
> > --> RV10-List message posted by: Kelly McMullen<kellym@aviating.com><k
ellym@aviating.com>
> >
> > Perhaps you are working on the wrong end of the problem. #3&4 are
> > peaking last, so must be too rich. The rest of the cylinders are peakin
g
> > within 0.4gph of #5. You also will need to gather measurements every 0.
2
> > gph to better detect the peaks once you get those two cylinders closer
> > to the rest.
> >
> > On 8/21/2010 3:59 PM, Alan Mekler wrote:
> >> Patrick,
> >>
> >> Before switching to the GAMIs my cylinder #5 peaked at 2.5 gallons l
> >> than my richest cylinder #3. After changing to GAMIs (my 3^rd set) I'm
> >> down to a 1 gallon spread. GAMI has given me the richest injector they
> >> make for cylinder # 5 but it still peaks early.
> >>
> >> Here is my latest flight data flying at 7000 MSL 22 inches/ 2400 rpm.
> >>
> >> Alan
> >>
> >> 13 12.5 12.1 11.7 11.3 11.0 10.5 10.3 Fuel flow gal/hr
> >>
> >> 1420 1438 1468 1474 1453 1438 1422 1403 cylinder #1
> >>
> >> 1381 1398 1428 1452 1447 1437 1412 1373 cylinder #2
> >>
> >> 1393 1409 1438 1456 1473 1468 1448 1414 cylinder #3
> >>
> >> 1400 1417 1449 1468 1477 1470 1450 1414 cylinder #4
> >>
> >> 1434 1467 1469 1443 1415 1411 1400 1435 cylinder # 5
> >>
> >> 1410 1430 1463 1474 1458 1441 1420 1397 cylinder #6
> >>
> >> other method
> >>
> >> cylinder #1 1472 peak @ 11.5
> >>
> >> cylinder #2 1451 peak@ 11.2
> >>
> >> cylinder #3 1472 peak @ 11.1
> >>
> >> cylinder#4 1477 peak @ 11.2
> >>
> >> cylinder #5 1473 peak @ 12.1
> >>
> >> cylinder #6 1474 peak @ 11.5
> >>
> >> ----------------------------------------------------------------------
--
> >>
> >> *From:* owner-rv10-list-server@matronics.com
> >> [mailto:owner-rv10-list-server@matronics.com<owner-rv10-list-server@ma
tronics.com>]
> *On Behalf Of *Patrick
> >> Thyssen
> >> *Sent:* Saturday, August 21, 2010 5:22 PM
> >> *To:* rv10-list@matronics.com
> >> *Subject:* Re: RV10-List: TMXIO-540 and GAMI injectors
> >>
> >> ? Have you done the coke bottle check? Has anyone messed with the
> >> lines from the spider to injectors? Are we sure the lines are the
> >> right ones? The other thing have you had any problems with your EGT
> >> system. Could your EGT probes be bad?
> >> Peaking or not peaking where they should?
> >> Just a few thoughts
> >> Patrick Thyssen
> >>
> >> --- On *Sat, 8/21/10, Alan Mekler /<amekler@metrocast.net><amekler@met
rocast.net>/*
> wrote:
> >>
> >>
> >> From: Alan Mekler<amekler@metrocast.net> <amekler@metrocast.net>
> >> Subject: RV10-List: TMXIO-540 and GAMI injectors
> >> To: rv10-list@matronics.com
> >> Date: Saturday, August 21, 2010, 11:04 AM
> >>
> >> I have been trying the GAMI injectors( on the 4^th set now) but found
>
> >> the fuel flow on the cylinders varies widely. My cylinder #5 has the
> >> richest injector and it still peaks a gallon or more before the other
> >> cylinders Before gamis it was 2.5 gallons.. Has any one had this
> >> problem? Any solutions?
> >>
> >> GAMI does not why the fuel is so unbalanced in this engine. I have 95
> >> hours on the engine and all compressions are good. No intake leaks.
> >>
> >> Alan
> >>
> >> N668G
> >>
> >>
> >>
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| Subject: | Re: TMXIO-540 and GAMI injectors |
I've seen two flow divider failures in the last 5 years. One had a little
speck of hose liner (from a certified hose shop) jammed in the stem. The
engine would barely run.
The other was discovered looking for excessive roughness LOP. We changed
just about everything we could think of, and finally changed the flow
divider just to be thorough. That fixed the problem, but we never did
figure out why.
Dave Saylor
AirCrafters
140 Aviation Way
Watsonville, CA 95076
831-722-9141 Shop
831-750-0284 Cell
On Thu, Aug 26, 2010 at 6:42 PM, Alan Mekler <amekler@metrocast.net> wrote:
> Kelly,
>
> My engine has had the AD done but we did find an interesting finding. We
> did the bottle test with the injectors on and we saw less fuel coming out
#5
> even though it had the richest injector. So now we know the problem must
be
> in the flow divider. Not sure what the next step will be. Will try callin
g
> Precision tomorrow.
>
> Alan
>
>
> ------------------------------
>
> *From:* owner-rv10-list-server@matronics.com [mailto:
> owner-rv10-list-server@matronics.com] *On Behalf Of *Kelly McMullen
> *Sent:* Sunday, August 22, 2010 8:07 PM
> *To:* rv10-list@matronics.com
> *Subject:* Re: RV10-List: TMXIO-540 and GAMI injectors
>
>
> It is actually an AD on the fuel injection servos to check the security o
f
> the plug on the side. Some have been found loose and hanging by the safet
y
> wire.
> AD 2008-08-14
> SUMMARY: This document publishes in the Federal Register an amendment
> adopting emergency
> airworthiness directive (AD) 2008-06-51 that was sent previously to all
> known U.S. owners and
> operators of Lycoming Engines IO, (L)IO, TIO, (L)TIO, AEIO, AIO, IGO, IVO
,
> and HIO series
> reciprocating engines, TCM TSIO-360-RB reciprocating engines, and Superio
r
> Air Parts, Inc. IO-360
> series reciprocating engines with certain Precision Airmotive LLC RSA-5 a
nd
> RSA-10 series fuel
> injection servos. This AD results from eighteen reports of fuel injection
> servo plugs, part number
> (P/N) 383493, that had loosened or completely backed out of the threaded
> plug hole on the regulator
> cover of the fuel injection servo. These servo plugs were installed with
> servo plug gasket, P/N
> 365533, under the plug hex-head. We are issuing this AD to prevent a lean
> running engine, which
> could result in a substantial loss of engine power and subsequent loss of
> control of the airplane
>
> (f) Inspect the fuel injection servo plug, P/N 383493, for looseness, by
> attempting to turn it by
> hand, while being careful not to damage the safety wire or seal. If the
> plug moves, it is loose.
> (g) If the plug is not loose, go to paragraph (i) of this AD.
> (h) If the plug is loose, do the following:
> (1) Carefully cut and remove the safety wire that spans between the servo
> plug and regulator
> cover only.
> (2) Remove the servo plug while ensuring that the gasket, P/N 365533, tha
t
> is behind the plug, is
> not lost. The gasket may be slightly stuck to the regulator cover.
> (3) Examine the threads on the servo plug and regulator cover for damage.
> Threads should be
> smooth and consistent, with no burrs or chips. The servo plug outer
> diameter threads should also
> measure within 0.7419-0.7500-inch.
> (4) If the threads on either the servo plug or the regulator cover are
> damaged, or do not measure
> within the limits in paragraph (h)(3) of this AD, the servo is not eligib
le
> for any installation and must
> be replaced before further flight.
> (5) Inspect the gasket, P/N 365533, for tears and other damage. We are
> allowing the re-use of
> undamaged gaskets. Replace damaged gaskets with a new gasket, P/N 365533.
> (6) When reassembling, do not install any servo plug or regulator cover
> that is not eligible for
> installation. Install the gasket onto the servo plug and reassemble the
> servo plug to the regulator
> cover.
> (7) Torque the servo plug to a new, higher torque of 90-100 in-lbs, to he
lp
> maintain the proper
> clamp-up force against the plug and cover.
> (8) Safety wire the servo plug with 0.025-inch diameter wire to the
> regulator cover. Information
> on properly safety wiring the plug can be found in Precision Airmotive LL
C
> Mandatory Service
> Bulletin No. PRS-107, Revision 1, dated March 6, 2008.
> (9) Inspect all other safety wire on the servo. Replace any that are
> damaged.
>
>
> On 8/22/2010 4:32 PM, Alan Mekler wrote:
>
> Patrick,
>
> Which SB are you referring to?
>
> Alan
>
>
> ------------------------------
>
> *From:* owner-rv10-list-server@matronics.com [
> mailto:owner-rv10-list-server@matronics.com<owner-rv10-list-server@matron
ics.com>]
> *On Behalf Of *Patrick Thyssen
> *Sent:* Sunday, August 22, 2010 7:24 PM
> *To:* rv10-list@matronics.com
> *Subject:* RE: RV10-List: TMXIO-540 and GAMI injectors
>
>
> That's why you need to know the probes are OK. They may be giving you a
> wrong signal. The coke bottle test is, undo your injector lines from the
> injectors, put the same size glass bottle under them and turn on your boo
st
> pump, fill bottle about 3/4 and see if the same amount of fuel is in all
the
> glass bottles. Normally you do it with your injectors on but since you ha
ve
> different injectors it won't work that way.
> Just my way of checking.
> Patrick Thyssen
> Have you done the SB on the throttle body. The gasket and G on plug. I
> just checked another RV10 and he had not done it and it was loose.
>
>
> --- On *Sun, 8/22/10, Alan Mekler <amekler@metrocast.net><amekler@metroca
st.net>
> * wrote:
>
>
> From: Alan Mekler <amekler@metrocast.net> <amekler@metrocast.net>
> Subject: RE: RV10-List: TMXIO-540 and GAMI injectors
> To: rv10-list@matronics.com
> Date: Sunday, August 22, 2010, 6:00 PM
>
> Patrick,
>
> Give me the details of the coke bottle test. I=99m going to try sw
itching
> probes.
>
> The odd thing is the engine runs smooth.
>
> Alan
>
>
> ------------------------------
>
> *From:* owner-rv10-list-server@matronics.com [
> mailto:owner-rv10-list-server@matronics.com<owner-rv10-list-server@matron
ics.com>]
> *On Behalf Of *Patrick Thyssen
> *Sent:* Sunday, August 22, 2010 5:53 PM
> *To:* rv10-list@matronics.com
> *Subject:* Re: RV10-List: TMXIO-540 and GAMI injectors
>
>
> HAVE YOU DONE THE COKE BOTTLE TEST WITHOUT THE INJECTORS. SINCE EACH
> INJECTOR WILL BE DIFFERENT NOW. HAVE YOU LOOKED AT YOUR PROBES? Maybe sw
ap
> a few probes and see what you get.
> Patrick Thyssen
>
> --- On *Sun, 8/22/10, Kelly McMullen <kellym@aviating.com><kellym@aviatin
g.com>
> * wrote:
>
>
> From: Kelly McMullen <kellym@aviating.com> <kellym@aviating.com>
> Subject: Re: RV10-List: TMXIO-540 and GAMI injectors
> To: rv10-list@matronics.com
> Date: Sunday, August 22, 2010, 3:46 PM
>
lym@aviating.com>
>
>
> About the only thing left is your dry tappet clearances. Your engine
> builder should be able to give you what those clearances are. Ideally
> the clearances are in the middle of the allowable range and similar for
> each
> cylinder.................................................................
................
>
> Alternatively you could measure the amount of movement of each rocker
> arm. Intakes should be the same and exhausts the same. Has anyone looked
> inside your sump/intake manifold to ensure there is no obstruction, nor
> anything loose in there? Something is wrong if your #3&4 peak last with
> the leanest nozzles and #5 peaks first with the richest nozzle.
> Still not understanding how the engine could be running smoothly with
> that wide a difference in mixtures between cylinders.
>
> On 8/22/2010 7:40 AM, Alan Mekler wrote:
> > --> RV10-List message posted by: "Alan Mekler"<amekler@metrocast.net><
amekler@metrocast.net>
> >
> > Kelly,
> > I just looked at my injectors cylinder 3 and 4 have the leanest
> > injectors(GAMI A) while cylinder 5 has the richest injector (Gami J plu
s)
> > Alan
> >
> > -----Original Message-----
> > From: owner-rv10-list-server@matronics.com
> > [mailto:owner-rv10-list-server@matronics.com<owner-rv10-list-server@mat
ronics.com>]
> On Behalf Of Kelly McMullen
> > Sent: Saturday, August 21, 2010 8:13 PM
> > To: rv10-list@matronics.com
> > Subject: Re: RV10-List: TMXIO-540 and GAMI injectors
> >
> > --> RV10-List message posted by: Kelly McMullen<kellym@aviating.com><k
ellym@aviating.com>
> >
> > Perhaps you are working on the wrong end of the problem. #3&4 are
> > peaking last, so must be too rich. The rest of the cylinders are peakin
g
> > within 0.4gph of #5. You also will need to gather measurements every 0.
2
> > gph to better detect the peaks once you get those two cylinders closer
> > to the rest.
> >
> > On 8/21/2010 3:59 PM, Alan Mekler wrote:
> >> Patrick,
> >>
> >> Before switching to the GAMIs my cylinder #5 peaked at 2.5 gallons l
> >> than my richest cylinder #3. After changing to GAMIs (my 3^rd set) I'm
> >> down to a 1 gallon spread. GAMI has given me the richest injector they
> >> make for cylinder # 5 but it still peaks early.
> >>
> >> Here is my latest flight data flying at 7000 MSL 22 inches/ 2400 rpm.
> >>
> >> Alan
> >>
> >> 13 12.5 12.1 11.7 11.3 11.0 10.5 10.3 Fuel flow gal/hr
> >>
> >> 1420 1438 1468 1474 1453 1438 1422 1403 cylinder #1
> >>
> >> 1381 1398 1428 1452 1447 1437 1412 1373 cylinder #2
> >>
> >> 1393 1409 1438 1456 1473 1468 1448 1414 cylinder #3
> >>
> >> 1400 1417 1449 1468 1477 1470 1450 1414 cylinder #4
> >>
> >> 1434 1467 1469 1443 1415 1411 1400 1435 cylinder # 5
> >>
> >> 1410 1430 1463 1474 1458 1441 1420 1397 cylinder #6
> >>
> >> other method
> >>
> >> cylinder #1 1472 peak @ 11.5
> >>
> >> cylinder #2 1451 peak@ 11.2
> >>
> >> cylinder #3 1472 peak @ 11.1
> >>
> >> cylinder#4 1477 peak @ 11.2
> >>
> >> cylinder #5 1473 peak @ 12.1
> >>
> >> cylinder #6 1474 peak @ 11.5
> >>
> >> ----------------------------------------------------------------------
--
> >>
> >> *From:* owner-rv10-list-server@matronics.com
> >> [mailto:owner-rv10-list-server@matronics.com<owner-rv10-list-server@ma
tronics.com>]
> *On Behalf Of *Patrick
> >> Thyssen
> >> *Sent:* Saturday, August 21, 2010 5:22 PM
> >> *To:* rv10-list@matronics.com
> >> *Subject:* Re: RV10-List: TMXIO-540 and GAMI injectors
> >>
> >> ? Have you done the coke bottle check? Has anyone messed with the
> >> lines from the spider to injectors? Are we sure the lines are the
> >> right ones? The other thing have you had any problems with your EGT
> >> system. Could your EGT probes be bad?
> >> Peaking or not peaking where they should?
> >> Just a few thoughts
> >> Patrick Thyssen
> >>
> >> --- On *Sat, 8/21/10, Alan Mekler /<amekler@metrocast.net><amekler@met
rocast.net>/*
> wrote:
> >>
> >>
> >> From: Alan Mekler<amekler@metrocast.net> <amekler@metrocast.net>
> >> Subject: RV10-List: TMXIO-540 and GAMI injectors
> >> To: rv10-list@matronics.com
> >> Date: Saturday, August 21, 2010, 11:04 AM
> >>
> >> I have been trying the GAMI injectors( on the 4^th set now) but found
> >> the fuel flow on the cylinders varies widely. My cylinder #5 has the
> >> richest injector and it still peaks a gallon or more before the other
> >> cylinders Before gamis it was 2.5 gallons.. Has any one had this
> >> problem? Any solutions?
> >>
> >> GAMI does not why the fuel is so unbalanced in this engine. I have 95
> >> hours on the engine and all compressions are good. No intake leaks.
> >>
> >> Alan
> >>
> >> N668G
> >>
> >>
> >>
> >> * *
> >> * *
> >> **
> >> **
> >> **
> >> *http://www.matronics.com/Navigator?RV10-List*
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> >>
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> >
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