Hey everyone! I recently installed a new fuel pump on my 64 88 394. All fuel lines are properly attached and it is running out of a gas jug because the tank needs some work. But for some reason the pump has no suction? This is a new, old stock pump. When I actuated the pump with my hand it made the suction noises. The essentric was reinstalled during the rebuild Can the pump be incorrectly installed? Do I have a failed pump?

pictures and information would be much appreciated!

 

Please??

 

Can you pull the pump and look in to see the eccentric to confirm it is intact? If it wasn't seated/tightened properly it may not be actuating the pump.

Did the old pump work before the rebuild, if yes try it. Also confirm that the arms of the new and old pump match. Can you feel the pump being actuated while cranking the engine?

Good luck!!!

 

These pumps are rebuildable. The original style diaphram materials aren't compatible with modern fuels; I put an $$$ NOS one on one of my Starfires and it lasted less than 100 miles.

Alex, you have a couple of options. Send it off for rebuild using ethanol resistant materials, or use the factory CSM to rebuild it yourself, again using modern materials. You successfully rebuilt a Rocket engine so I have no doubt a fuel pump is in your skill set.

Rebuilds were commonly done in repair shops until flat rate pricing got more common. Quicker to replace a crimped flange pump than to remove, disassemble and rebuild a pump that could be taken apart.