Electric Fule pump

rick1954 · Post by **rick1954** » Wed May 07, 2008 11:46 am

I finely got my Holley electric fuel pump to install in the boat. (Yes it is for a marine application) this little bugger will pump 70gph at 14psi. Lets see her starve for fuel now, I will see what she will do WOT â€œbrieflyâ€ need to save money fro beer

. It should be a snap to install, the reg has two ports for two carbs
Nice.

Stripermann2 · Post by **Stripermann2** » Wed May 07, 2008 11:55 am

Rick, are you using this pump for carburetor application? Most carbs run at 7-9 psi. If so, you will certainly have issues...may need to regulate it down.

rick1954 · Post by **rick1954** » Wed May 07, 2008 12:41 pm

I am with you on that one, this is the high pressure pump (712-802-1) it comes with a regulator (12-803) pressure range 4-1/2 to 9psi , that is why I got the one for a marine application, I did not want any more problems. When that boat stops in the water, it is like a lead tub.

Stripermann2 · Post by **Stripermann2** » Wed May 07, 2008 12:56 pm

The only other advise I can offer is to wire it into a oil pressure switch or ignition primary side for example... God forbid you blow a line or develop a fuel leak, you want that pump to shut down immediately if engine dies.

Don't want continuous fuel spraying over a hot engine!!

rick1954 · Post by **rick1954** » Thu May 08, 2008 7:43 am

I can appreciate the concerns over the el-pump, this I also have and thank you very much. It took me a long time reviewing my options and I feel that this is the best one. The pump is manufactured by Holley for a marine applications and is approved by the powers to be. I was reviewing the oil switch Idea and feel that the down side out ways the good. If you donâ€™t power the pump up on ignition, and if the carb perks out, you will have a hard time starting the engin. This pump has a pressure bypass allowing you to power it up continues , if that is what you want to do.
Also I am installing this pump hard, no rubber hose , just like what is on the boat now, this should take care of any blown hose problem.
I also have installed a sniffer, this will turn on the blower and alarm at one tenth of one % of the flammable gas needed to flash over. I donâ€™t think you can be positively safe in either a mechanical pump or an el-pump application.
I need a 5 amp circuit to drive the pump, so I am going to come off the coil (low voltage side) lol, and drive a relay to feed the pump this NO wait I got it!! I will come off the starter sol, and drive a relay, hook the pump to the c terminal of the relay. On the nc terminal hook the pressure switch to +12vdc On the no terminal of the relay hook to +12vdc. Now when you crank the engin the pump will be live, once engin has started the relay will de-energize and the pump will run thru the pressure switch There Stripermann2, I am using your advice and solving my problem at the same time.

Stripermann2 · Post by **Stripermann2** » Thu May 08, 2008 9:24 am

Rick...see what a cold beer and a few minutes of thinking will get you!

rick1954 · Post by **rick1954** » Thu May 08, 2008 9:40 am

Absolutely, beer and boat go together like soup and sandwich

now to get her done