How Do You Bench Test A Rebuilt Fuel Pump?

[Bingster]

Have heard about bench testing a fuel pump but haven't a clue how it's done.  I think I'd better do it after I rebuild mine.

[keithb7]

Rebuild pump. Install pump. Crank engine over. Watch fuel spew out of a hose from pump into a bucket. Then hook up a pressure/vacuum gauge.  Crank over engine. Read fuel pressure. 
 

[Merle Coggins]

Hold your finger over the inlet port and operate the lever. If it pulls a vacuum on your finger it should pump fuel. 

[Sam Buchanan]

9 hours ago, Bingster said:

Have heard about bench testing a fuel pump but haven't a clue how it's done.  I think I'd better do it after I rebuild mine.

 

I wonder if just installing the pump and running the engine would be less time and hassle than figuring out how to bench test it........... ?

Edited August 30, 2022 by Sam Buchanan

[Bingster]

You may be right, Sam.  I just don't know enough not to screw something up. By the way, do you just push the pump in and tighten the screws, or does the arm need to be in a certain position relative to the cam?