Azlo,
Why do you need an electric fuel pump? I don't have one and my engine fires immediately....does it help something?
Clark
I welcome any debates as im in need of coffee today.![]()
Well this is my thought, a brand new mercruiser pump is in the hundred$ plus u have vacumm lines and other lines right. Well the electric pump is a fraction of the cost and its just the fuel lines and will have enough money to have extra on board just in case. So then I thought of rebuilding the pump but I have read some negative things on rebuilding mrecruiser pumps, not saying that it wouldnt last but electric just had to many pros than cons. As far as running performance, its all the same. I welcome any debates as im in need of coffee today.
electric vs rebuilding vs new.
So that electric is in lieu of the mechanical pump on the motor?
Man, yeah i need to get it going. August or the begining of september!!MMMMmmmmmm coffee. Dark brown nectar of life.
Hey, when you going to have this thing in the water buddy??? I don't know whats taking you so long. I should have mine all wrapped up by the weekend
Rock on bro![]()
THis weekend!?!?! Video man, dont forget the video.
Good to see more progress Az... and good to hear your electrical system is close to being finished. Splashdown soon!
TII
Hoping you get to splash soon, Azlo. Looking forward to seeing it on the water.
Excellent progress Azlo, I literally spent my entire morning reading your resto-thread, awesome job, can't wait to see the finished results!
Very cool thread. Its taking nearly 2 years and lot of painstaking work! I just read the whole thing from page 1 to 37. Thanks for sharing the experience!
Alzo you know you need some good stuff for that ride leave the bubbly to the ones who cant handle the clear. Hope to see some pics soon.
I have been thinking of moving to an electrical fuel pump myself.
Lot?s of pros to that as I see it.
Just thought I would mention that you need an oil pressure switch on the power
You want the pump to be off while the motor is not running.
I think that?s in the code for boats.
Others may want to chime in if I?m off base.
GLG
No wonder some marine pumps come with oil psi switch. But what if its hooked to the coil? Coils not on when engine is not running, right?
Well that?s not true. You can turn the key to the ?on? position and the coil will have power. I have not researched the hookup but my understanding is you need a switch that is normally open and when you have oil pressure it is closed and allows power to flow.
Like I said, I?m not 100% up on things but my guess is that you use the switch as a ground. I think the term is ground lift. Run a positive to the pump and the negative from the pump to the oil pressure switch. When you have oil pressure it completes the circuit.
Check out this link for info or do a search, as how you wire it up is very important.
You must put safety first on this hookup.
http://www.boatered.com/forum/topic.asp?TOPIC_ID=97399
GLG
I have seen the oil pressure switch wired in the circuit as well. My question is this: If the boat sits long enough the fuel in the carb to evaporate, and you need oil pressure before the fuel pump comes on, how long to you have to crank the motor over to get it to start? The problem is going to be if the carb bowl is empty and there is no oil pressure because the motor is not running, the fuel pump will not fill the bowl. I'm sure there is a solution. Maybe a bypass switch just for startup. It would not be uncommon for the carb bowl to be dry after a week of siting. Expecially here with the texas summer heat.
once again, Good progress Az.