Fuel Dip stick Measurements
Forum rules
You must be a member of the Cessna 120-140 Association in order to post new topics, reply to existing topics, or search for information on this forum. Use the "Join" link in the red menu bar.
You must be a member of the Cessna 120-140 Association in order to post new topics, reply to existing topics, or search for information on this forum. Use the "Join" link in the red menu bar.
-
- Posts: 2
- Joined: Sat Aug 18, 2018 11:31 pm
- Name: Harold S
- Aircraft Type:
- Occupation-Interests:
- Contact:
Fuel Dip stick Measurements
Hi, somewhere in one of the news letters there was an article on how to calibrate a fuel dip stick with measurements. Does anyone recall that?
- 6643
- Posts: 2438
- Joined: Tue May 01, 2018 7:00 am
- Name: John C
- Location: KLCI, NH
- Aircraft Type: 1946 C140/C90
- Occupation-Interests: A&P, semi-retired
- Contact:
Re: Fuel Dip stick Measurements
There probably was, but, if you can't find it, don't let that stop you. It's pretty easy.
1) drain tank.
2 put in a known quantity of fuel.
3) mark stick
4) repeat from step 2 as necessary.
1) drain tank.
2 put in a known quantity of fuel.
3) mark stick
4) repeat from step 2 as necessary.
John Cooper
www.skyportservices.net
www.skyportservices.net
-
- Posts: 11
- Joined: Wed Jun 20, 2018 12:16 am
- Name: Nathaniel W
- Aircraft Type: C120
- Occupation-Interests:
- Contact:
Re: Fuel Dip stick Measurements
I have a copy of the measurements, I think I found them on the forum before it was updated. Not my work but i copied and pasted it below:
I calibrated a fuel dipstick using an ordinary wooden 12" ruler. Here are the numbers. This was done on a level hangar floor. Scott 3200 tail wheel, 6.00x6 tires. Best to empty your tank and start out by putting in exactly 4 gallons. Stick the tank, mark the stick. Then add a gallon and stick the tank, mark the stick, etc. etc. Note the reading on your fuel gauge as you go if you want to, but remember it will not read the same in the air.
6" = 12+ gallons
4 1/2" = 11
3 5/8" = 10
3 1/8" = 9
2 1/2" = 8
2 1/8" = 7
1 3/4" = 6
1 1/4" = 5
7/8" = 4
I calibrated a fuel dipstick using an ordinary wooden 12" ruler. Here are the numbers. This was done on a level hangar floor. Scott 3200 tail wheel, 6.00x6 tires. Best to empty your tank and start out by putting in exactly 4 gallons. Stick the tank, mark the stick. Then add a gallon and stick the tank, mark the stick, etc. etc. Note the reading on your fuel gauge as you go if you want to, but remember it will not read the same in the air.
6" = 12+ gallons
4 1/2" = 11
3 5/8" = 10
3 1/8" = 9
2 1/2" = 8
2 1/8" = 7
1 3/4" = 6
1 1/4" = 5
7/8" = 4
-
- Posts: 2
- Joined: Sat Aug 18, 2018 11:31 pm
- Name: Harold S
- Aircraft Type:
- Occupation-Interests:
- Contact:
Re: Fuel Dip stick Measurements
Thank you for your replies.
- 6339
- Posts: 27
- Joined: Tue May 01, 2018 7:00 am
- Name: Steve Rose
- Location: New Port Richey,FL FA40
- Aircraft Type: '48 140
- Occupation-Interests: Retired Navy Maintainer
- Contact:
Re: Fuel Dip stick Measurements
The above measurements are very accurate. I used a paint paddle with these markings on my '48 140 and it's usually within half gallon when I refuel
Steve Rose
Steve Rose
-
- Posts: 18
- Joined: Mon Jul 23, 2018 10:41 pm
- Name: Boyd G
- Location: Prescott Arizona
- Aircraft Type: C140A
- Occupation-Interests: Semi Retired
- Contact:
Re: Fuel Dip stick Measurements
Will these measurements hold true for the “A” models as well?