Matronics Email Lists Forum Index Matronics Email Lists
Web Forum Interface to the Matronics Email Lists
 
 Get Email Distribution Too!Get Email Distribution Too!    FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Flaky EGT Probe

 
Post new topic   Reply to topic    Matronics Email Lists Forum Index -> AeroElectric-List
View previous topic :: View next topic  
Author Message
art(at)zemon.name
Guest





PostPosted: Thu Aug 15, 2019 6:58 pm    Post subject: Flaky EGT Probe Reply with quote

Folks,
One of my four EGT probes is flaky. Sometimes it works. Most of the time it reads zero (too low to register). I don't actually use the EGT for anything so I'm not very excited about spending money to fix it. But it annoys me to see three nice green bars and one black space where there should be a green bar.
Are these things repairable?
    -- Art Z.
--
https://CheerfulCurmudgeon.com/Love the stranger for you yourselves were strangers in Egypt. Deut. 10:19


- The Matronics AeroElectric-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:

http://www.matronics.com/Navigator?AeroElectric-List
Back to top
email(at)jaredyates.com
Guest





PostPosted: Thu Aug 15, 2019 7:32 pm    Post subject: Flaky EGT Probe Reply with quote

Art, you seem like the kind of fellow who would appreciate a lengthy blog post:
http://bearhawkblue.com/replacing-the-oem-dynon-thermocouple-connectors-with-omega-connectors/

On August 15, 2019 23:05:01 Art Zemon <art(at)zemon.name> wrote:
Quote:
Folks,
One of my four EGT probes is flaky. Sometimes it works. Most of the time it reads zero (too low to register). I don't actually use the EGT for anything so I'm not very excited about spending money to fix it. But it annoys me to see three nice green bars and one black space where there should be a green bar.
Are these things repairable?
    -- Art Z.
--
https://CheerfulCurmudgeon.com/Love the stranger for you yourselves were strangers in Egypt. Deut. 10:19



- The Matronics AeroElectric-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:

http://www.matronics.com/Navigator?AeroElectric-List
Back to top
bob.verwey(at)gmail.com
Guest





PostPosted: Thu Aug 15, 2019 10:01 pm    Post subject: Flaky EGT Probe Reply with quote

Hi Art
So how is it that you dont use your EGT? To me it is a prized tool in the engine management arsenal!
On Fri, 16 Aug 2019 at 05:03, Art Zemon <art(at)zemon.name (art(at)zemon.name)> wrote:

Quote:
Folks,
One of my four EGT probes is flaky. Sometimes it works. Most of the time it reads zero (too low to register). I don't actually use the EGT for anything so I'm not very excited about spending money to fix it. But it annoys me to see three nice green bars and one black space where there should be a green bar.
Are these things repairable?
    -- Art Z.
--
https://CheerfulCurmudgeon.com/Love the stranger for you yourselves were strangers in Egypt. Deut. 10:19


--
Best...Bob Verwey

082 331 2727
[img]https://docs.google.com/uc?export=download&id=0B5d7rgAInTuTUUZsUjY4QmJsdVU&revid=0B5d7rgAInTuTdDJDaXRFZVh3b3lMa3FWL0s3MFdzc01YRlNvPQ[/img]


- The Matronics AeroElectric-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:

http://www.matronics.com/Navigator?AeroElectric-List
Back to top
fidot



Joined: 07 Jul 2019
Posts: 5

PostPosted: Fri Aug 16, 2019 4:47 pm    Post subject: Re: Flaky EGT Probe Reply with quote

Art,

For what it's worth, when I had a similar problem on my EI Engine Monitor, it turned out to be the bad input channel rather than probe. I'd start with trying to move it to another channel (ie, swap two probes) and seeing what happens... unless you've already done that...


- The Matronics AeroElectric-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:

http://www.matronics.com/Navigator?AeroElectric-List
Back to top
View user's profile Send private message Visit poster's website
art(at)zemon.name
Guest





PostPosted: Sat Aug 17, 2019 5:39 pm    Post subject: Flaky EGT Probe Reply with quote

Bob,
The Lycoming operating manual says:
Quote:
LEANING WITH MANUAL MIXTURE CONTROL. (Economy cruise, 75% power or less, without flowmeter or EGT gauge.)
<snip>
Fuel Injected Engines.
(1) Slowly move mixture control from “Full Rich” position toward lean position.
(2) Continue leaning until slight loss of power is noted (loss of power may or may not be accompanied by roughness.
(3) Enrich until engine runs smoothly and power is regained.


I tried this method and compared the results with using the EGT (also per Lycoming's operating manual). I got the same fuel flow both ways.
I learned the manual method in airplanes that lacked an EGT probe on each cylinder. It's quick and doesn't require me to interrupt my scan.
    -- Art Z.


On Fri, Aug 16, 2019 at 1:18 AM Bob Verwey <bob.verwey(at)gmail.com (bob.verwey(at)gmail.com)> wrote:

Quote:
Hi Art
So how is it that you dont use your EGT? To me it is a prized tool in the engine management arsenal!
On Fri, 16 Aug 2019 at 05:03, Art Zemon <art(at)zemon.name (art(at)zemon.name)> wrote:

Quote:
Folks,
One of my four EGT probes is flaky. Sometimes it works. Most of the time it reads zero (too low to register). I don't actually use the EGT for anything so I'm not very excited about spending money to fix it. But it annoys me to see three nice green bars and one black space where there should be a green bar.
Are these things repairable?
    -- Art Z.
--
https://CheerfulCurmudgeon.com/Love the stranger for you yourselves were strangers in Egypt. Deut. 10:19


--
Best...Bob Verwey

082 331 2727



--
https://CheerfulCurmudgeon.com/Love the stranger for you yourselves were strangers in Egypt. Deut. 10:19


- The Matronics AeroElectric-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:

http://www.matronics.com/Navigator?AeroElectric-List
Back to top
art(at)zemon.name
Guest





PostPosted: Sun Aug 18, 2019 4:23 am    Post subject: Flaky EGT Probe Reply with quote

Jared,
Yes, indeed; I did appreciate that. I would have replaced flaky connectors, too.
I have an MGL system so the only connectors in the EGT circuit are the screw terminals on the RDAC.
    -- Art Z.


On Thu, Aug 15, 2019 at 10:46 PM Jared Yates <email(at)jaredyates.com (email(at)jaredyates.com)> wrote:

Quote:

Art, you seem like the kind of fellow who would appreciate a lengthy blog post:
http://bearhawkblue.com/replacing-the-oem-dynon-thermocouple-connectors-with-omega-connectors/

On August 15, 2019 23:05:01 Art Zemon <art(at)zemon.name (art(at)zemon.name)> wrote:
Quote:
Folks,
One of my four EGT probes is flaky. Sometimes it works. Most of the time it reads zero (too low to register). I don't actually use the EGT for anything so I'm not very excited about spending money to fix it. But it annoys me to see three nice green bars and one black space where there should be a green bar.
Are these things repairable?
    -- Art Z.
--
https://CheerfulCurmudgeon.com/Love the stranger for you yourselves were strangers in Egypt. Deut. 10:19





--
https://CheerfulCurmudgeon.com/Love the stranger for you yourselves were strangers in Egypt. Deut. 10:19


- The Matronics AeroElectric-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:

http://www.matronics.com/Navigator?AeroElectric-List
Back to top
art(at)zemon.name
Guest





PostPosted: Sun Aug 18, 2019 4:29 am    Post subject: Flaky EGT Probe Reply with quote

Good thought. I can easily try that since I have several unused channels.
    -- Art Z.


On Fri, Aug 16, 2019 at 8:03 PM fidot <web(at)79ft.net (web(at)79ft.net)> wrote:

Quote:
--> AeroElectric-List message posted by: "fidot" <web(at)79ft.net (web(at)79ft.net)>

Art,

For what it's worth, when I had a similar problem on my EI Engine Monitor, it turned out to be the bad input channel rather than probe. I'd start with trying to move it to another channel (ie, swap two probes) and seeing what happens... unless you've already done that...

--
https://CheerfulCurmudgeon.com/Love the stranger for you yourselves were strangers in Egypt. Deut. 10:19


- The Matronics AeroElectric-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:

http://www.matronics.com/Navigator?AeroElectric-List
Back to top
skywagon185(at)gmail.com
Guest





PostPosted: Sun Aug 18, 2019 10:46 am    Post subject: Flaky EGT Probe Reply with quote

Art,
About the leaning steps....
I would suggest one additional comment/step:
As one pulls the Mixture knob for leaning, when you get near peak EGT, one should develop a habit of "zipping" thru peak and getting on the lean side as quickly as possible.
When on the rich side and coming up on Peak EGT, there is a region most prone to cause engine problems; pinging, detonation, etc. depending on power setting, atmospherics, etc..  That region should be not lingered in.  Getting into the lean side does a nice job of cooling and cruise economy.  After some practice in noting where the mixture knob sits in lean mode, one can do a fast "pull" from rich to lean, and then use EGT or CHT to set the final mixture for lean cruise.

On Sat, Aug 17, 2019 at 6:45 PM Art Zemon <art(at)zemon.name (art(at)zemon.name)> wrote:

Quote:
Bob,
The Lycoming operating manual says:
Quote:
LEANING WITH MANUAL MIXTURE CONTROL. (Economy cruise, 75% power or less, without flowmeter or EGT gauge.)
<snip>
Fuel Injected Engines.
(1) Slowly move mixture control from “Full Rich” position toward lean position.
(2) Continue leaning until slight loss of power is noted (loss of power may or may not be accompanied by roughness.
(3) Enrich until engine runs smoothly and power is regained.


I tried this method and compared the results with using the EGT (also per Lycoming's operating manual). I got the same fuel flow both ways.
I learned the manual method in airplanes that lacked an EGT probe on each cylinder. It's quick and doesn't require me to interrupt my scan.
    -- Art Z.


On Fri, Aug 16, 2019 at 1:18 AM Bob Verwey <bob.verwey(at)gmail.com (bob.verwey(at)gmail.com)> wrote:

Quote:
Hi Art
So how is it that you dont use your EGT? To me it is a prized tool in the engine management arsenal!
On Fri, 16 Aug 2019 at 05:03, Art Zemon <art(at)zemon.name (art(at)zemon.name)> wrote:

Quote:
Folks,
One of my four EGT probes is flaky. Sometimes it works. Most of the time it reads zero (too low to register). I don't actually use the EGT for anything so I'm not very excited about spending money to fix it. But it annoys me to see three nice green bars and one black space where there should be a green bar.
Are these things repairable?
    -- Art Z.
--
https://CheerfulCurmudgeon.com/Love the stranger for you yourselves were strangers in Egypt. Deut. 10:19


--
Best...Bob Verwey

082 331 2727



--
https://CheerfulCurmudgeon.com/Love the stranger for you yourselves were strangers in Egypt. Deut. 10:19




- The Matronics AeroElectric-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:

http://www.matronics.com/Navigator?AeroElectric-List
Back to top
Kellym



Joined: 10 Jan 2006
Posts: 1623
Location: Sun Lakes AZ

PostPosted: Sun Aug 18, 2019 11:13 am    Post subject: Flaky EGT Probe Reply with quote

Whether going slow or fast through peak area is highly dependent on the
power setting in use at the time. If 65% or less, it is immaterial
whether you go slow or fast, you won't hurt anything. Generally more
desirable to establish peak at 65%, then adjust to final power you
desire with throttle.
Otherwise, as you say, establish a known fuel flow that is assured to be
LOP for the power setting, go straight from rich to that setting, and
then find peak from the lean side, knowing the first to reach peak will
be the richest cylinder and the rest are leaner.

On 8/18/2019 11:44 AM, skywagon185guy . wrote:
Quote:
Art,
About the leaning steps....
I would suggest one additional comment/step:
As one pulls the Mixture knob for leaning, when you get near peak EGT,
one should develop a habit of "zipping" thru peak and getting on the
lean side as quickly as possible.
When on the rich side and coming up on Peak EGT, there is a region most
prone to cause engine problems; pinging, detonation, etc. depending on
power setting, atmospherics, etc..  That region should be not lingered
in.  Getting into the lean side does a nice job of cooling and cruise
economy.  After some practice in noting where the mixture knob sits in
lean mode, one can do a fast "pull" from rich to lean, and then use EGT
or CHT to set the final mixture for lean cruise.

On Sat, Aug 17, 2019 at 6:45 PM Art Zemon <art(at)zemon.name
<mailto:art(at)zemon.name>> wrote:

Bob,

The Lycoming operating manual says:

LEANING WITH MANUAL MIXTURE CONTROL. (Economy cruise, 75% power
or less, without flowmeter or EGT gauge.)
<snip>
Fuel Injected Engines.
(1) Slowly move mixture control from “Full Rich” position toward
lean position.
(2) Continue leaning until slight loss of power is noted (loss
of power may or may not beaccompanied by roughness.
(3) Enrich until engine runs smoothly and power is regained.


I tried this method and compared the results with using the EGT
(also per Lycoming's operating manual). I got the same fuel flow
both ways.

I learned the manual method in airplanes that lacked an EGT probe on
each cylinder. It's quick and doesn't require me to interrupt my scan.

    -- Art Z.


On Fri, Aug 16, 2019 at 1:18 AM Bob Verwey <bob.verwey(at)gmail.com
<mailto:bob.verwey(at)gmail.com>> wrote:

Hi Art
So how is it that you dont use your EGT? To me it is a prized
tool in the engine management arsenal!

On Fri, 16 Aug 2019 at 05:03, Art Zemon <art(at)zemon.name
<mailto:art(at)zemon.name>> wrote:

Folks,

One of my four EGT probes is flaky. Sometimes it works. Most
of the time it reads zero (too low to register). I don't
actually use the EGT for anything so I'm not very excited
about spending money to fix it. But it annoys me to see
three nice green bars and one black space where there should
be a green bar.

Are these things repairable?

    -- Art Z.

--
https://CheerfulCurmudgeon.com/

/Love the stranger for you yourselves were strangers in
Egypt. /Deut. 10:19



--
Best...
Bob Verwey
082 331 2727





--
https://CheerfulCurmudgeon.com/

/Love the stranger for you yourselves were strangers in Egypt.
/Deut. 10:19



- The Matronics AeroElectric-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:

http://www.matronics.com/Navigator?AeroElectric-List

_________________
Kelly McMullen
A&P/IA, EAA Tech Counselor # 5286
KCHD
Back to top
View user's profile Send private message
ceengland7(at)gmail.com
Guest





PostPosted: Sun Aug 18, 2019 11:16 am    Post subject: Flaky EGT Probe Reply with quote

That's been recommended by some of the 'big names', and makes some sense.
But my recent experience with a new-to-me RV-6 with a ~15+ year old Dynon
engine monitor is that a 'quick pull' seems to confuse its lean function,
and it can't seem to detect lean of peak. That also makes some intuitive
sense, since EGT never really 'peaks'. Anyone have this experience with
later engine monitors?

Art, if the probe does turn out to be bad, do some ebay deep diving. If
you're willing to wait a few weeks (and you're not hung up on "buy
'Murcun", there are some good deals on Chinese probes.

Charlie

On Sun, Aug 18, 2019 at 1:51 PM skywagon185guy . <skywagon185(at)gmail.com>
wrote:

[quote] Art,
About the leaning steps....
I would suggest one additional comment/step:
As one pulls the Mixture knob for leaning, when you get near peak EGT, one
should develop a habit of "zipping" thru peak and getting on the lean side
as quickly as possible.
When on the rich side and coming up on Peak EGT, there is a region most
prone to cause engine problems; pinging, detonation, etc. depending on
power setting, atmospherics, etc.. That region should be not lingered in


- The Matronics AeroElectric-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:

http://www.matronics.com/Navigator?AeroElectric-List
Back to top
art(at)zemon.name
Guest





PostPosted: Sun Aug 18, 2019 12:40 pm    Post subject: Flaky EGT Probe Reply with quote

Gents,
I encourage both of you to read the Lycoming operator's manual for the O-360 and IO-360. You can download it here: https://www.lycoming.com/sites/default/files/O-HO-IO-HIO-AIO%20%26%20TIO-360%20Oper%20Manual%2060297-12.pdf
The document is quite specific about how to lean the engine and when running LOP is permissible and how much hotter than peak.
Executive summary:
  • 75% power or greater, run at peak EGT
  • less than 75% power, run up to 150 degrees F lean of peak

Cheers,

    -- Art Z.
On Sun, Aug 18, 2019 at 2:28 PM Kelly McMullen <kellym(at)aviating.com (kellym(at)aviating.com)> wrote:

Quote:
--> AeroElectric-List message posted by: Kelly McMullen <kellym(at)aviating.com (kellym(at)aviating.com)>

Whether going slow or fast through peak area is highly dependent on the
power setting in use at the time. If 65% or less, it is immaterial
whether you go slow or fast, you won't hurt anything. Generally more
desirable to establish peak at 65%, then adjust to final power you
desire with throttle.
Otherwise, as you say, establish a known fuel flow that is assured to be
LOP for the power setting, go straight from rich to that setting, and
then find peak from the lean side, knowing the first to reach peak will
be the richest cylinder and the rest are leaner.

On 8/18/2019 11:44 AM, skywagon185guy . wrote:
> Art,
> About the leaning steps....
> I would suggest one additional comment/step:
> As one pulls the Mixture knob for leaning, when you get near peak EGT,
> one should develop a habit of "zipping" thru peak and getting on the
> lean side as quickly as possible.
> When on the rich side and coming up on Peak EGT, there is a region most
> prone to cause engine problems; pinging, detonation, etc. depending on
> power setting, atmospherics, etc..  That region should be not lingered
> in.  Getting into the lean side does a nice job of cooling and cruise
> economy.  After some practice in noting where the mixture knob sits in
> lean mode, one can do a fast "pull" from rich to lean, and then use EGT
> or CHT to set the final mixture for lean cruise.
 

--
https://CheerfulCurmudgeon.com/Love the stranger for you yourselves were strangers in Egypt. Deut. 10:19


- The Matronics AeroElectric-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:

http://www.matronics.com/Navigator?AeroElectric-List
Back to top
chuckryan4(at)gmail.com
Guest





PostPosted: Sun Aug 18, 2019 12:54 pm    Post subject: Flaky EGT Probe Reply with quote

On Sun, Aug 18, 2019 at 2:45 PM Art Zemon <art(at)zemon.name (art(at)zemon.name)> wrote:

Quote:
Gents,
I encourage both of you to read the Lycoming operator's manual for the O-360 and IO-360. You can download it here: https://www.lycoming.com/sites/default/files/O-HO-IO-HIO-AIO%20%26%20TIO-360%20Oper%20Manual%2060297-12.pdf
The document is quite specific about how to lean the engine and when running LOP is permissible and how much hotter than peak.
Executive summary:
  • 75% power or greater, run at peak EGT
  • less than 75% power, run up to 150 degrees F lean of peak

Cheers,

    -- Art Z.
On Sun, Aug 18, 2019 at 2:28 PM Kelly McMullen <kellym(at)aviating.com (kellym(at)aviating.com)> wrote:

Quote:
--> AeroElectric-List message posted by: Kelly McMullen <kellym(at)aviating.com (kellym(at)aviating.com)>

Whether going slow or fast through peak area is highly dependent on the
power setting in use at the time. If 65% or less, it is immaterial
whether you go slow or fast, you won't hurt anything. Generally more
desirable to establish peak at 65%, then adjust to final power you
desire with throttle.
Otherwise, as you say, establish a known fuel flow that is assured to be
LOP for the power setting, go straight from rich to that setting, and
then find peak from the lean side, knowing the first to reach peak will
be the richest cylinder and the rest are leaner.

On 8/18/2019 11:44 AM, skywagon185guy . wrote:
> Art,
> About the leaning steps....
> I would suggest one additional comment/step:
> As one pulls the Mixture knob for leaning, when you get near peak EGT,
> one should develop a habit of "zipping" thru peak and getting on the
> lean side as quickly as possible.
> When on the rich side and coming up on Peak EGT, there is a region most
> prone to cause engine problems; pinging, detonation, etc. depending on
> power setting, atmospherics, etc..  That region should be not lingered
> in.  Getting into the lean side does a nice job of cooling and cruise
> economy.  After some practice in noting where the mixture knob sits in
> lean mode, one can do a fast "pull" from rich to lean, and then use EGT
> or CHT to set the final mixture for lean cruise.


 

--
https://CheerfulCurmudgeon.com/Love the stranger for you yourselves were strangers in Egypt. Deut. 10:19



- The Matronics AeroElectric-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:

http://www.matronics.com/Navigator?AeroElectric-List
Back to top
ceengland7(at)gmail.com
Guest





PostPosted: Sun Aug 18, 2019 1:54 pm    Post subject: Flaky EGT Probe Reply with quote

Art, my copy flips that:
[img]cid:ii_jzhhrik50[/img]

Operating at or above 75% at peak egt is  generally considered to be hazardous to exhaust valves. Under 75% makes peak operation ok, as mentioned in the document. The doc doesn't seem to address lean of peak; not surprising since it's almost 15 years old. IIRC, there are Lyc docs with later publication dates that hedge a bit on that 75%/peak statement, but virtually no one operates there, anyway. Almost nothing is lost by going 20-30 lean of peak, assuming mixture distribution allows it.
Charlie

On Sun, Aug 18, 2019 at 3:45 PM Art Zemon <art(at)zemon.name (art(at)zemon.name)> wrote:

Quote:
Gents,
I encourage both of you to read the Lycoming operator's manual for the O-360 and IO-360. You can download it here: https://www.lycoming.com/sites/default/files/O-HO-IO-HIO-AIO%20%26%20TIO-360%20Oper%20Manual%2060297-12.pdf
The document is quite specific about how to lean the engine and when running LOP is permissible and how much hotter than peak.
Executive summary:
  • 75% power or greater, run at peak EGT
  • less than 75% power, run up to 150 degrees F lean of peak

Cheers,

    -- Art Z.
On Sun, Aug 18, 2019 at 2:28 PM Kelly McMullen <kellym(at)aviating.com (kellym(at)aviating.com)> wrote:

Quote:
--> AeroElectric-List message posted by: Kelly McMullen <kellym(at)aviating.com (kellym(at)aviating.com)>

Whether going slow or fast through peak area is highly dependent on the
power setting in use at the time. If 65% or less, it is immaterial
whether you go slow or fast, you won't hurt anything. Generally more
desirable to establish peak at 65%, then adjust to final power you
desire with throttle.
Otherwise, as you say, establish a known fuel flow that is assured to be
LOP for the power setting, go straight from rich to that setting, and
then find peak from the lean side, knowing the first to reach peak will
be the richest cylinder and the rest are leaner.

On 8/18/2019 11:44 AM, skywagon185guy . wrote:
> Art,
> About the leaning steps....
> I would suggest one additional comment/step:
> As one pulls the Mixture knob for leaning, when you get near peak EGT,
> one should develop a habit of "zipping" thru peak and getting on the
> lean side as quickly as possible.
> When on the rich side and coming up on Peak EGT, there is a region most
> prone to cause engine problems; pinging, detonation, etc. depending on
> power setting, atmospherics, etc..  That region should be not lingered
> in.  Getting into the lean side does a nice job of cooling and cruise
> economy.  After some practice in noting where the mixture knob sits in
> lean mode, one can do a fast "pull" from rich to lean, and then use EGT
> or CHT to set the final mixture for lean cruise.
 

--
https://CheerfulCurmudgeon.com/Love the stranger for you yourselves were strangers in Egypt. Deut. 10:19



- The Matronics AeroElectric-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:

http://www.matronics.com/Navigator?AeroElectric-List



image.png
 Description:
 Filesize:  29.6 KB
 Viewed:  1020 Time(s)

image.png


Back to top
Display posts from previous:   
Post new topic   Reply to topic    Matronics Email Lists Forum Index -> AeroElectric-List All times are GMT - 8 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum


Powered by phpBB © 2001, 2005 phpBB Group