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High Idle

 
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torque_roll(at)hotmail.co
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PostPosted: Mon Jul 14, 2008 8:09 pm    Post subject: High Idle Reply with quote
Hi folks C
 
A few issues with high idle on our M14P at the moment - it was running fine over the weekend C but another pilot went to do some flying this morning C and found it wouldn't idle below 34% C any ideas?


 

Andrew Love
 
Contract Pilot
NZCPL (A)
Queenstown
New Zealand


 
P     +64 3 451 0396     I     F    +64 3 342 5189       I       M +64 21 818 816

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nc69666(at)aol.com
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PostPosted: Mon Jul 14, 2008 8:40 pm    Post subject: High Idle Reply with quote
Hi Andrew, Gary Gabbard here, CJ N22YK.. A few years ago I had the same thing happen, It turned out to be a intake leak, one of the three induction intake tube drain fittings had snapped off at the elbow where it screwed into the intake tube. Idled at about 36%, fixed leak, and it went back to normal idle speed..So the first thing I would do is look for a induction leak... Good Hunting... Gary


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heaysr(at)telus.net
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PostPosted: Mon Jul 14, 2008 9:25 pm    Post subject: High Idle Reply with quote
Andrew,

It could also be carb ice. You are into winter down-under and Queenstown is more chilly than Auckland. Cold & moist I would think. If you were running up at 46% to warm the oil, then pulled the power off, ice in the carb will prevent a low idle. Work the throttle a bit and it may clear. If it is carb ice, be very wary because if your approach to landing is a low power, ice may prevent you from getting the power completely off on rollout. Dicey if you have a short runway.

I get the problem in Vancouver, Canada in late fall and early spring when it is cold and moist, if I have not reinstalled the heat tubes that feed into the back of the carb.


Royden Heays
Kiwi in Canada
Yak 55M

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torque_roll(at)hotmail.co
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PostPosted: Tue Jul 15, 2008 3:07 am    Post subject: High Idle Reply with quote
Thanks for the input folks C we think we're onto it.
On another topic altogether C if anyone knows of a tidy S2A available for sale from the factory that can be certified (or is already) please let me know C we have found one C but looking at other options C to be operated privately C but would like it be ready for ATOs.
cheers C

Andrew Love
 
Contract Pilot
NZCPL (A)
Queenstown
New Zealand


 
P     +64 3 451 0396     I     F    +64 3 342 5189       I       M +64 21 818 816

From: heaysr(at)telus.net
To: yak-list(at)matronics.com
Subject: RE: High Idle
Date: Mon C 14 Jul 2008 22:22:42 -0700

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Andrew C
 
It could also be carb ice. You are into winter down-under and Queenstown is more chilly than Auckland. Cold & moist I would think.  If you were running up at 46% to warm the oil C then pulled the power off C ice in the carb will prevent a low idle. Work the throttle a bit and it may clear. If it is carb ice C be very wary because if your approach to landing is a low power C ice may prevent you from getting the power completely off on rollout. Dicey if you have a short runway.
 
I get the problem in Vancouver C Canada in late fall and early spring when it is cold and moist C if I have not reinstalled the heat tubes that feed into the back of the carb.
 
 
Royden Heays
Kiwi in Canada
Yak 55M
 
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buddairbum(at)cox.net
Guest
PostPosted: Tue Jul 15, 2008 6:37 am    Post subject: High Idle Reply with quote
Are you talking S-2A Pitts?


On 7/15/08 4:00 AM, "Andrew Love" <[url=torque_roll(at)hotmail.com]torque_roll(at)hotmail.com[/url]> wrote:

[quote]Thanks for the input folks, we think we're onto it.
On another topic altogether, if anyone knows of a tidy S2A available for sale from the factory that can be certified (or is already) please let me know, we have found one, but looking at other options, to be operated privately, but would like it be ready for ATOs.


cheers,



Andrew Love


Contract Pilot

NZCPL (A)
Queenstown

New Zealand



P +64 3 451 0396 I F +64 3 342 5189 I M +64 21 818 816



From: [url=heaysr(at)telus.net]heaysr(at)telus.net[/url]
To: [url=yak-list(at)matronics.com]yak-list(at)matronics.com[/url]
Subject: RE: High Idle
Date: Mon, 14 Jul 2008 22:22:42 -0700

Andrew,



It could also be carb ice. You are into winter down-under and Queenstown is more chilly than Auckland. Cold & moist I would think. If you were running up at 46% to warm the oil, then pulled the power off, ice in the carb will prevent a low idle. Work the throttle a bit and it may clear. If it is carb ice, be very wary because if your approach to landing is a low power, ice may prevent you from getting the power completely off on rollout. Dicey if you have a short runway.



I get the problem in Vancouver, Canada in late fall and early spring when it is cold and moist, if I have not reinstalled the heat tubes that feed into the back of the carb.





Royden Heays

Kiwi in Canada

Yak 55M



--

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torque_roll(at)hotmail.co
Guest
PostPosted: Wed Jul 16, 2008 3:11 am    Post subject: High Idle Reply with quote
Gidday Budd C
Yep that would be correct. Found a couple we could be flying over to view C hopefully to purchase one of them - do you know of any nice examples?
 
cheers C

Andrew Love
 
Contract Pilot
NZCPL (A)
Queenstown
New Zealand


 
P     +64 3 451 0396     I     F    +64 3 342 5189       I       M +64 21 818 816

Date: Tue C 15 Jul 2008 07:32:14 -0700
Subject: Re: High Idle
From: buddairbum(at)cox.net
To: yak-list(at)matronics.com

Are you talking S-2A Pitts?
On 7/15/08 4:00 AM C "Andrew Love" <torque_roll(at)hotmail.com> wrote:

[quote]Thanks for the input folks C we think we're onto it.
On another topic altogether C if anyone knows of a tidy S2A available for sale from the factory that can be certified (or is already) please let me know C we have found one C but looking at other options C to be operated privately C but would like it be ready for ATOs.
cheers C

Andrew Love


Contract Pilot

NZCPL (A)
Queenstown

New Zealand


 
P    +64 3 451 0396     I     F    +64 3 342 5189       I       M +64 21 818 816

From: heaysr(at)telus.net
To: yak-list(at)matronics.com
Subject: RE: High Idle
Date: Mon C 14 Jul 2008 22:22:42 -0700

Andrew C

It could also be carb ice. You are into winter down-under and Queenstown is more chilly than Auckland. Cold & moist I would think.  If you were running up at 46% to warm the oil C then pulled the power off C ice in the carb will prevent a low idle. Work the throttle a bit and it may clear. If it is carb ice C be very wary because if your approach to landing is a low power C ice may prevent you from getting the power completely off on rollout. Dicey if you have a short runway.

I get the problem in Vancouver C Canada in late fall and early spring when it is cold and moist C if I have not reinstalled the heat tubes that feed into the back of the carb.

Royden Heays

Kiwi in Canada

Yak 55M

--

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buddairbum(at)cox.net
Guest
PostPosted: Wed Jul 16, 2008 5:46 am    Post subject: High Idle Reply with quote
None come to mind. They have pretty well polarized to being either very good or in need of engine/cover, but the price has to be free to make those worth buying. Somewhere I have a map of the locations of all existing US S-2A’s. If you’re interested contact me off line and I’ll see if I can find it. Inasmuch as I put 350-450 hours of dual-given into mine every year, I am constantly having conversations about them.
bd


On 7/16/08 4:07 AM, "Andrew Love" <[url=torque_roll(at)hotmail.com]torque_roll(at)hotmail.com[/url]> wrote:

[quote]Gidday Budd,
Yep that would be correct. Found a couple we could be flying over to view, hopefully to purchase one of them - do you know of any nice examples?

cheers,



Andrew Love


Contract Pilot

NZCPL (A)
Queenstown

New Zealand



P +64 3 451 0396 I F +64 3 342 5189 I M +64 21 818 816



Date: Tue, 15 Jul 2008 07:32:14 -0700
Subject: Re: High Idle
From: [url=buddairbum(at)cox.net]buddairbum(at)cox.net[/url]
To: [url=yak-list(at)matronics.com]yak-list(at)matronics.com[/url]

Are you talking S-2A Pitts?


On 7/15/08 4:00 AM, "Andrew Love" <[url=torque_roll(at)hotmail.com]torque_roll(at)hotmail.com[/url] <http://torque_roll(at)hotmail.com/> > wrote:

[quote]Thanks for the input folks, we think we're onto it.
On another topic altogether, if anyone knows of a tidy S2A available for sale from the factory that can be certified (or is already) please let me know, we have found one, but looking at other options, to be operated privately, but would like it be ready for ATOs.


cheers,



Andrew Love


Contract Pilot

NZCPL (A)
Queenstown

New Zealand



P +64 3 451 0396 I F +64 3 342 5189   I M +64 21 818 816



From: [url=heaysr(at)telus.net]heaysr(at)telus.net[/url] <http://heaysr(at)telus.net/>
To: [url=yak-list(at)matronics.com]yak-list(at)matronics.com[/url] <http://yak-list(at)matronics.com/>
Subject: RE: High Idle
Date: Mon, 14 Jul 2008 22:22:42 -0700

Andrew,



It could also be carb ice. You are into winter down-under and Queenstown is more chilly than Auckland. Cold & moist I would think. If you were running up at 46% to warm the oil, then pulled the power off, ice in the carb will prevent a low idle. Work the throttle a bit and it may clear. If it is carb ice, be very wary because if your approach to landing is a low power, ice may prevent you from getting the power completely off on rollout. Dicey if you have a short runway.



I get the problem in Vancouver, Canada in late fall and early spring when it is cold and moist, if I have not reinstalled the heat tubes that feed into the back of the carb.





Royden Heays

Kiwi in Canada

Yak 55M



--

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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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