1500xs

[switzerbullet]

I have an xs that has the fuel pump disconnected and an electric one added. I dont know why it was changed. The questions are: Do I just plug the crankcase lines running to it or tie them together? At what pressure can an electric fuel pump run without hurting the floats? Thank you.

[Skoontz]

We used to run 6lbs of pressure on a souped up Jeep, but that was with a Holley Carb.

I don't think you will hurt the floats but what will happen is you will stuff the carbs full of fuel and it will run out the overflow. I may be wrong here, but all you are gunna do is force fuel under the needle and seat. So, start at 6, then back down in 1# increments until the fuel stops running out of the overflow. If when the motor is underway, you starve for fuel, you will need to turn the pump pressure up. Nowadays, they have rheostats for fuel pumps, so when you back off the throttle, the pump pressure reduces as necessary. Better yet, just find a stock Merc pump and fix the problem the way it was designed to be.

[Bill Gohr]

If you're gonna run an electric, plug the 2 holes in the intake cover, put an electric pump on it set it at 5 and maybe you'll get 6 without flooding over, those little floats don't hold back much. Or just put the pump back on, the remote mounted pump is just fine for what you are going to do, or, just bring it over.

[switzerbullet]

Hi Bill
I picked up the 14' Allison with the 1500xs and it had the pump on it. I dont know if the origional works or not, so I will try it. I'm going to see if I can check the pressure on it as I don't even know what it is. Its weathered as we both thought, but still a cool looking boat. The hull rating is 60 h.p. Were can I find a 60 h.p. cowl for the 1500xs?????????????

[Bill Gohr]

JUst black out the 1 on the cowl and make it a 500XS, I have the pump parts here to rebuild the fuel pump bring that POS over here so I can see it, look it over..........

[Mark Poole]

Is that a 14 or a 15? A 14 is going to be a hnadful with a 150!

[TomAprilsSwitzers]

I have an xs that has the fuel pump disconnected and an electric one added. I dont know why it was changed. The questions are: Do I just plug the crankcase lines running to it or tie them together? At what pressure can an electric fuel pump run without hurting the floats? Thank you.

You should contact Tony Sitar J r at 815 357 9945..He is the top guy in the country when it comes to Merc's...and the "TOWER OF POWER" in line 6's where his big thing...hope that helps.

[Bruster]

I have an xs that has the fuel pump disconnected and an electric one added. I dont know why it was changed. The questions are: Do I just plug the crankcase lines running to it or tie them together? At what pressure can an electric fuel pump run without hurting the floats? Thank you.

Run 3-4 PSIG 6 PSIG will bleed thru. Plug the ports

[Smokey]

We set up a 14 Allison with a 150 years ago just because the parts were laying around and we didn't know any better. We put cable steering in it and it worked great. No problem in a straight line but a handful to turn. But that boat isn't meant to run as fast as the 150 will push it. We were running in the mid 80s. Cable steering eliminates the top mounts so you don't need to worry with them. Bottom line is ditch the mechanical steering. Good Luck!!
Smokey

[Bill Gohr]

Tony who???

He's not the "top guy" the top guy is Ralph Kozan, Tony and I both got our "in line training" from Ralph, I met Tony back in the 70's when I worked for Ralph, Tony used to bring his motors there, as did most every guy with an in line 6 in the midwest. Tony did have the gig though, with his top secret test area down on the river, too bad he had to move. I have to call him, I haven't talked to him in a while.