Fuel pump help needed!

[tully]

Spend all day playing with this.

1960 bird 352, I had a fuel pump with vacumn wipers , changing over to non vacumn and putting in electric wiper soon.

So bought new fuel pump non vacumn type and installed. ran a gas line to a gator aid bottle with gas in it, and a short line from the out end and nothing. but if I pour gas down the gas line it runs out the out end, or with the engine turning over it will pump it out.

any ideas?

[JohnG]

not sure I get your situation but it must mean the new fuel pump does not pump (not clear on what happens if you turn the engine over)

Since it is mechanical, the possibility exists it has not gotten the air out and needs to be primed. Your pouring gas down it should have done it.

You said you pour gas in and it runs all the way through and out the other side?? That should not happen to the best of my knowledge as a pump has two check valves in it so the vacuum only forces gas in one direction. Maybe a good shot of carb cleaner might help

If you arent going to use the pump for wiper vacuum why not just get a low pressure electric pump?? They are about $35 or so. You only want one that develops about 5 or 6 psi. Good for all kinds of things since you don't need a running motor. The mechanical ones can die just sitting in the car or on the store shelf as the check valves get crapped up and fail. (I keep an electric one in my trunk in the tool box in case the mechanical one fails. I still run my wipers off the wiper/vacuum side)

If your mechanical one is not working I would take it back and get another. Even if it does work who would want to trust it?? If it fails... you walk.


John

[Guest]

Is it possible you have the lines backwards?

This may sound goofy, but I did this when I switched my fuel pump. It turned out the newer pump had the lines in the oppisiste locations from the older.

I spent a good 20min. trying to start a car that was was getting no gas b/c I had the in, in the out.

[tully]

fuel pump

It was a bad pump got the second new one and works fine.

[JohnG]

sometimes they have sat on the shelf too long and the check valves get stuck. Have been told that the diaphram can harden up as well but dont know for a fact.

Still advocate keeping a low pressure electric one in the
trunk. If you have the wiring set up, you can tap in on the key side of the ballast resistor and be back on the road in 5 minutes.

john