17mm, 13mm, 10mm, etc.

[JEMOORE]

Bought a 3990105 lift-pump to carry with me as a spare. My pump is still OK so I've never changed one. Other than the obvious by just looking is there anything a man might miss that would be needed for a beside the road change out? Like maybe a bolt and nut to stop the fuel flow at the banjo from the tank. Any thoughts will be helpful.



Jerry

 

[Evan A. Beck]

The banjo fitting on the supply side won't leak, just keep it at the same level where it usually sits.



A couple extra banjo bolt washers would be a good idea, they can make themselves scarce during a replacement of the pump...

 

[Briar Hopper]

The nuts on the mounting bolts for the bracket (top of pump) are 1/4-20 if I remember correctly, you'll need a 7/16 wrench or socket.

You'll also need a step stool that won't slip, it's much, much faster to do it from above. I know, I tried it both ways. It's tight, but not impossible.