Briggs fuel pump bypass? - Page 3

DieselDoctor · #21 12-21-2018, 01:55 PM

If you check post #9 you'll find that I gave you the same information that your buddy cheesedawg tried to give you several posts later. You chose not to acknowledge either of us but went on to whine about what you think you want this time. Kid - you don't know what you want. You say we treat you like a brat. Maybe so, you have given us little reason to think otherwise. As you mature, you will find that respect is earned. I suggest you take a good close look in the mirror, read some of your posts and see how you might have responded differently, then start earning our respect. Otherwise you will be treated exactly as deserved.

Merk · #22 12-21-2018, 02:23 PM

This is getting interresting

twoton · #23 12-21-2018, 05:14 PM

So, how’s this for an answer.

You’re gonna have to size your electric fuel pump. I’m not gonna do that for you. David Kirk sells one for the K series but that might be too small, I don’t know. Maybe Leadslingingdaddy will chime in.

Identify which wire coming out of your ignition switch will provide you with B+ both during start and run. Splice into this wire with a new 16 awg wire. Do this neatly! This will be your low amp trigger wire.

Get yourself a Bosch style relay. Amp rating will be a function of your electric fuel pump rating. 20 amp will prolly be fine but check this. Find a suitable mounting location on your machine.

Run your new trigger wire to terminal 85. See the diagram below.

Take another 16 awg wire and run it from terminal 86 to a convenient ground.

Now get yourself a fuse holder and some 12 awg wire. You’re gonna make your high amp feed. One end of this wire will be connected to the positive terminal of your battery. Some would now tell you to connect the other end to terminal 30 of the relay, this is OK. You can do that, but if you have a 5 pin relay, you will have a terminal 87a. And, when the coil in the relay is at rest (no power applied) 87a will be live and could be a hazard. The other way to do it is to run your high amp feed to terminal 87 then run another 12 awg wire from terminal 30 to the + side of the electric fuel pump.

Connect the negative side of the fuel pump wiring to a convenient ground.

Plumb the pump.

Add a filter.

How that?

DownNdirt · #24 12-21-2018, 10:14 PM

Quote:

Originally Posted by cubs-n-bxrs

Does the kid whom shot the video play a Bango by chance.

Your brothers girlfriend doing the floss was by far the most entertaining.

That's my sister.

Mudrig150 · #25 12-21-2018, 10:15 PM

You know what? Screw it.
I'm tired of this. I'm tired of all this.
I'm deactivating my account and forever leaving this site.
Have fun.

DownNdirt · #26 12-21-2018, 10:21 PM

Sam, I think you are making a smart choice, sadly. From day one you got off on the wrong foot and never rebound from that. These old timers are just too sour for your style and seem to misunderstand your ideas on here. Have fun with a different group who might see the full vision of your plans and understand your questions.

R Bedell · #27 12-22-2018, 07:20 AM

Quote:

These old timers are just too sour for your style and seem to misunderstand your ideas on here.

OR......maybe...... Sam misunderstood the sound advice that he was given by the experienced and well seasoned "old timers".

JamesGarfield · #28 09-11-2024, 06:50 PM

Quote:

Originally Posted by Mudrig150

Change of plans. I realized it's easier to find a Briggs opposed twin. In fact, there are 2 for sale right now for $100. One runs and the other is for parts. Try finding a Magnum for that.

Anyway, the one has no fuel pump. I really don't want to deal with the crap of the fuel pumps and would really like to have an electric pump. How would I go about bypassing the fuel pump? And yes, I did watch that one video, he did not explain it very well.

Hey Mudrig,

I realize it's been about 6 years since you posted this, and you might not even still be here.

But I'm curious, did you ever follow through with your electric fuel pump plan?

Sam Mac · #29 09-12-2024, 09:09 AM

Mudrig is long gone

JamesGarfield · #30 09-13-2024, 06:45 AM

Quote:

Originally Posted by Sam Mac

Mudrig is long gone

He's long gone? Yeah, I figured that might be the case. Six years can be a virtual eternity in the Internet world.

I had hoped to talk about that electric fuel pump idea. So happens I did that same project on my own Briggs Opposed Twin (461707).

First is the 'schematic of the major parts.

And then the general physical parts layout.

I'd be curious to hear from anyone who's done this, about such things ad fuel pressure settings, performance observations, and so on.