Electric Fuel pump

Finklea

Recruit
Joined
Jun 4, 2008
Messages
2
So after finding out I have a cracked block from freezing over the winter (whole other story), i would like to remove the 45 gallons of fresh 93 octane gas from my boat. I was thinking I could pump it out using the electric fuel pump. I turn the key on and nothing.. What would keep the fuel pump from working? does the engine have to turn over to engage the oil pressure sensor? any suggestions?

My boat is a 2004 Tahoe 204 with a 4.3 L V6 mercruiser alpha 1.
 

bruceb58

Supreme Mariner
Joined
Mar 5, 2006
Messages
30,751
Re: Electric Fuel pump

Its not hard to bypass and hardwire the pump. Just don't let it run dry or you are going to be wishing you didn't ruin your expensive pump.

I would just buy an electric pump from the auto parts store and wire in a switch that you can flip on and off easily.
 

DaveM

Petty Officer 1st Class
Joined
Feb 27, 2002
Messages
308
Re: Electric Fuel pump

I would just buy an electric pump from the auto parts store and wire in a switch that you can flip on and off easily.

Bingo! This is what some pros do.
 

180shabah

Rear Admiral
Joined
Mar 26, 2005
Messages
4,995
Re: Electric Fuel pump

Slightly off topic, but your boat does not require 93 octane. Gas is expensive enough, why pay even more???
 

Fireman431

Rear Admiral
Joined
Sep 17, 2007
Messages
4,292
Re: Electric Fuel pump

Also, the electric pumps should only be momentary on and not a constant on when the key is on. They are only needed to pressurize the fuel system and then shut off when pressure is reached. If not, there could be a fuel leak and the pump would just empty the tank into the bilge. Somewhat of a safety hazard. I've even seen some that only activate when the key is in the 'start' position.
 
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