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Full Version: Bench test a fuel pump
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Rav914
Here's the situation: I recently purchased a 50,000-mile '74 1.8 that has been sitting for 12 years. I have the engine out for maintenance prior to starting it up. Yesterday I was replacing the fuel lines to/from the fuel pump and got to thinking - if this thing is not working it'll be much more difficult to replace with the engine installed. Best to find out now if it doesn't work.

So, is there a way to "bench" test the pump with the engine out? Electrical systems are not very intuitive to me. Thanks.
Joe Ricard
Hook 12V to it, the contacts are marked + and -
also there is markings for suction and return and discharge.

Oh and no smoking
Rav914
I was hoping it'd be that simple. Thanks!
Katmanken
Um, they are designed to run with gas in them to avoid damaging the pump and to avoid explosions. I have been known to pump gas between two 1 gallon cans on a bench.

Ken
914Sixer
I build a small loop just like way the fuel system runs. You can even put a pressure gage in line to check the output.
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