Some EGT Questions
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Robert Eilers
- Posts: 652
- Joined: Sat May 08, 2004 12:33 am
Some EGT Questions
I have the two probe EGT system in my C170. I notice when climbing out at full throttle the left and right EGT indicators are split - the left colder than the right. If I reduce throttle slightly the two EGT indicators more closley match. Is this a function of one side running richer than the other? I am not sure how that would occur, or why movement of the throttle would change the mixture. Is the split just an anomally of the two probe EGT system? The split only occurs at full throttle.
"You have to learn how to fall before you learn how to fly"
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GAHorn
- Posts: 21291
- Joined: Fri Apr 12, 2002 8:45 pm
Re: Some EGT Questions
The carburetor has a "fuel enrichment" function at full throttle to help keep temps down (and why full throttle climbs are preferred.)
'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.
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hilltop170
- Posts: 3485
- Joined: Sat May 06, 2006 6:05 pm
Re: Some EGT Questions
Robert-
If you had a 6-position EGT you would see that all of the EGTs vary differently as you change power, mixture, and carb heat settings.
If you had a 6-position EGT you would see that all of the EGTs vary differently as you change power, mixture, and carb heat settings.
Richard Pulley
2014-2016 TIC170A Past President
1951 170A, N1715D, s/n 20158, O-300D
2023 Best Original 170A at Sault Ste. Marie
Owned from 1973 to 1984.
Bought again in 2006 after 22 years.
It's not for sale!
2014-2016 TIC170A Past President
1951 170A, N1715D, s/n 20158, O-300D
2023 Best Original 170A at Sault Ste. Marie
Owned from 1973 to 1984.
Bought again in 2006 after 22 years.
It's not for sale!
Cessna® is a registered trademark of Textron Aviation, Inc. The International Cessna® 170 Association is an independent owners/operators association dedicated to C170 aircraft and early O-300-powered C172s. We are not affiliated with Cessna® or Textron Aviation, Inc. in any way.