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Cox Engine of The Month
Fuel tank cap
Page 1 of 1
Fuel tank cap
I am building a Baby Barnstormer with a pressure TeeDee .049. I need a old style oil cap as shown in the picture. The picture is just an example I copied off the internet and is only to show the oil cap.
With a bit of work these old oil caps can be fitted to be the filler caps on a pressure fuel tank. With some gasket paper they are both fuel tight and pressure tight. To fill the tank just open the cap and fill it up, no need to mess with unplugging any lines.
Anyone know where I can get one, when I was much younger they were everywhere?

With a bit of work these old oil caps can be fitted to be the filler caps on a pressure fuel tank. With some gasket paper they are both fuel tight and pressure tight. To fill the tank just open the cap and fill it up, no need to mess with unplugging any lines.
Anyone know where I can get one, when I was much younger they were everywhere?

Mjsas- Moderate Poster
- Posts : 12
Join date : 2016-03-12
Location : Rochester Mn
Re: Fuel tank cap
probably too big but a search turned these up on the e-aby
http://www.ebay.com/itm/Vintage-Gas-Engine-Lathe-Machine-Tool-Oil-Cups-Gits-Bros-Spring-Lid-4pc-Lot-NOS-/322074727551
http://www.ebay.com/itm/Vintage-Gas-Engine-Lathe-Machine-Tool-Oil-Cups-Gits-Bros-Spring-Lid-4pc-Lot-NOS-/322074727551
fredvon4- Top Poster
Posts : 3408
Join date : 2011-08-26
Age : 65
Location : Lampasas Texas
Re: Fuel tank cap
Paul Beck vintage car parts in the UK has got them with 1/4" thread
https://www.vintagecarparts.co.uk/products/ca480-small-cup-oiler
https://www.vintagecarparts.co.uk/products/322-oiler-flip-top
https://www.vintagecarparts.co.uk/products/323-oiler-flip-top-1
https://www.vintagecarparts.co.uk/products/ca480-small-cup-oiler
https://www.vintagecarparts.co.uk/products/322-oiler-flip-top
https://www.vintagecarparts.co.uk/products/323-oiler-flip-top-1
OVERLORD- Diamond Member
- Posts : 1501
Join date : 2013-03-19
Age : 54
Location : Normandy, France
Re: Fuel tank cap
I think they were called Gits caps, Woody Bartelt still sells old engine parts, don't know if they could hold pressure though.
http://www.woodysengines.com/shopping.htm
http://www.woodysengines.com/shopping.htm
crankbndr- Diamond Member
Posts : 2643
Join date : 2011-12-10
Location : Homestead FL
Re: Fuel tank cap
Years ago I saw these used for racing models using muffler or crank case pressure and I guess they work fine for the low pressure
I think they were part of the tank vent and lifted slightly while fast refueling then let snap shut and crank/fire go racing
I think they were part of the tank vent and lifted slightly while fast refueling then let snap shut and crank/fire go racing
fredvon4- Top Poster
Posts : 3408
Join date : 2011-08-26
Age : 65
Location : Lampasas Texas
Re: Fuel tank cap
I don't know how much room you have to work with but the Traxxas brand car/truck makers offer tanks with spring loaded fill caps:
https://traxxas.com/products/parts/5363
https://traxxas.com/products/parts/5548
https://traxxas.com/search?keyword=Fuel+tank
If you don't like extra long flights....don't fill it up all the way!!
https://traxxas.com/products/parts/5363
https://traxxas.com/products/parts/5548
https://traxxas.com/search?keyword=Fuel+tank
If you don't like extra long flights....don't fill it up all the way!!
Marleysky- Diamond Member
Posts : 2861
Join date : 2014-09-28
Age : 68
Location : Grand Rapids, MI
Re: Fuel tank cap
You might try Texas Timers they have any kind of bladder fitting you could ever want. any Free flight or combat guy can steer you there, or Rusty may reply to this...he told me about TTTimers.
steve
steve
steve thornton- Bronze Member
- Posts : 44
Join date : 2013-10-06
Location : SE Michigan
Re: Fuel tank cap
If Your still looking,they are called,the Real McCoy....In 1871 Elijah McCoy invented a device for lubrication on locomotives....There was lots of imitations,so His was asked for..."The real McCoy"....Still used in Electric motor rebuilders part bins....Z
dizzy Z- New Member
- Posts : 2
Join date : 2016-10-08
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