Setting up a gas can

Tutorials > Setting up a gas can


An airplane with a two-stroke gasoline engine requires a supply of mixed fuel and a way to move it into the plane's gas tank. A gas can and pump are easy to set up for that purpose.

Assemble the parts

Gas can (standard 5L) and tote (Canadian Tire #058-0019-2). The tote provides a pocket to store the fuel pump and catches any drips or spills.

Gas can in tote

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Fuel cap fitting (Du-Bro #807)

New parts - fuel cap fitting

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Fuel cap fitting instructions

Instructions

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Fuel pump (MPI #MPIACC224):

New parts - MPI fuel pump

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Not shown:

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Modify the cap and spout

Here are the parts: Cap, stopper and spout:

Cap, stopper and spout

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The inner ring on the bottom of the stopper needs to be removed. I didn't have a small enough cutting disc so I trimmed one to size with a pair of scissors:

The trimmed cutting disc

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With the inner ring out, the inside of the stopper needs to be smoothed:

Inside of stopper smoothed

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The tab on top of the stopper must also come off:

Tab on top of stopper removed

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I wanted the base of the spout because of the gasket, but I didn't need the whole length. I marked the cutoff line by holding a marker flat and spinning the spout:

Hold the pen, turn the spout

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Here's the stub of the spout in the can:

The stub of the spout still acts as a gasket in the tank

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Install the fitting

With the centre of the stopper marked, a pin vise is a great way to make a pilot hole:

Pin vise for the pilot hole

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I like Forstner bits for large holes because of the clean bore. This fitting requires a 1/2" bit:

Half inch forstner bit for the fitting

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There's that nice clean hole:

Nice, clean hole

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With the fitting inserted through the top of the stopper the o-ring goes on from the bottom, followed by the white plastic nut. A deep 11/16" socket is an excellent way to hold the nut while tightening the fitting. Use a wrench on the fitting and don't put any side load on the barb:

White nut - 11-16 in spark plug socket

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Attach the fuel line with clunk and filter to the inside fitting:

Plumbing inside of the cap
Gas can - clunk and filter

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Note that I used a washer and a second o-ring on the outside so that the fitting barb would clear the edge of the cap:

Fitting outside of the cap

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Here's the fitting on the can:

Fitting on the can

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Connect the fuel pump

One line runs from the pump to the fitting barb and the other from the pump to the filling spout:

Fuel pump plumbed in

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All together:

Can ready!

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