Chicagoland MG Club: Driveline August
Tech Tip
$12.00 Emergency Fuel Pump
A solution to that pesky SU fuel pump problem.

Would you like piece of mind, free from anxiety, when you take your MG touring? Sure I carry a spare SU fuel pump. Even the after-market fuel pumps can fail at the most inopportune time and place.
Who wants to change or work on the fuel pump on a busy freeway in the blazing sun, while your wife (to put it mildly) is uneasy, standing there waving the eighteen wheelers around you?
Just insert one end of this trusty $12.00 fuel pump in your gas tank opening, two pumps and away you go. No delays, no danger, you are a winner in the eyes of your wife.

Materials needed:
Rubber stopper with a whole in the center. Check the yellow pages of your phone book for Laboratory Equipment and Supplies. Buy a #9 stopper. It is the right size and comes with a small hole in the center. Cost fewer than two dollars.
Blood pressure bulb bulb from your pharmacy. It comes with a one-way valve inside it. The one I bought was $7.95, made by Marshall, Model 21-125.
Piece of copper tubing OD at your local hardware store about 1-1/4 long.
Drip irrigation tubing OD, seven foot length.

Assembly:
1. Push one end of the copper tubing into the rubber stopper hole.
2. Dip one end of the hose into boiling water or heat with a hair dryer. Force it over the copper tube.
3. The blood pressure pump fits perfectly over the other end of the hose.

To see it work:
Disconnect the fuel pump wire and try it in your T-series MG. Couple of pumps every 10-15 minutes and you can drive forever. If your gas tank is full, pump less often. You only want 2-12 to 3 pounds of pressure. More could cause flooding or the carbs to overflow.
This is not a new idea for fuel delivery. Chris Nowlan

 

of Moss Motors tells me the K-type MG works on the same idea. My TC friend Bill Phy tells me others work on this principal. Such as 1930-32 Cadillac, 1928 Wills Ste. Claire. Also all early race cars used and air pump. Bill says he would pump it up to 3 pounds and take off.

A Human Pneumatic Fuel Pump
Bill Phy also tells me back in 1948 he and a friend drove from Lake Elsinore to Temple City, CA taking turns hanging over the bed of his 1933 model C Ford pick-up. They had stuck a piece of wiper hose in the gas tank opening wrapped with a rag to seal the opening. Every time the engine would start to sputter, one of them would blow into the hose and then kink it.
Don Klein of the NASCAR fame modified on the rag and hose trick by using a rubber stopper and hose. (I took it one step further and added the blood pressure pump with the one-way valve so I would not have to be breathing the gas fumes. You could add a small pressure gauge.)

It is dependable. Its reliable. Its fun.

Safety Fast!
Stuart Locke

Note from Bill Cole: I believe Stewart Locke was from the Vintage MG Car Club of Southern California. It should work properly for any MG without the gas tank ventilator. For those so equipped (like my 80 B), it is necessary to clamp shut the tubing from the tank to the round canister in the trunk.I carry a very small vice-grips in the bag with the fuel pump for that purpose, although a small C-clamp should work as well. Once pinched off, the tank can be pressurized.




~~Bill Cole


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