520H Electric fuel pump locations.

[sqrlgtr 2,782]

Wanting to add an electric fuel pump to my 520H and was hoping to get some ideas/suggestions/pics of mounting locations.  I done a search on here, but a lot of the pics are gone and not much about mounting locations but more about wiring. Pics don't necessarily have to be 520's only. I have everything to add a rear lift to the 520 so under the seat/fender may be out (looks to be really tight) but I havent had a chance to check it out good yet.  This is the pump I will be installing. Thanks for your attention to this matter!!!

Edited Sunday at 09:46 PM by sqrlgtr

[Bill D 2,817]

I substituted the NLA Onan pump for this Kawasaki  pump.  Mounting bracket is from a Kawasaki. 

 

If you go the electric pump route, connect the positive wire to the positive terminal on the coil.  If the safeties are activated the pump will shut down along with the engine.

 

 

Edited Sunday at 10:34 PM by Bill D

[Achto 31,709]

Jim has his mounted under the seat. @WHX?? you have any pics to share?

[WHX?? 56,433]

Pan stand was out for paint. This is the only place on a 520 for it. 

[sqrlgtr 2,782]

12 hours ago, Bill D said:

I substituted the NLA Onan pump for this Kawasaki  pump.  Mounting bracket is from a Kawasaki. 

 

@Bill D How does the Onan crank with that style pump. The hard to start after setting is only thing I have against the pump I have now it runs good just hard to start after setting for a few days. I put a one-way fuel valve on it at the tank, and it helped a bunch but still cranks over longer than I would like after setting.

 

This is where I had planned on putting it but would like to run that rock shaft I got from you (WHX??) also.

9 hours ago, WHX?? said:

Pan stand was out for paint. This is the only place on a 520 for it. 

 

Edited 14 hours ago by sqrlgtr

[sqrlgtr 2,782]

I wonder if  anyone has tried to stiff one beside the motion cam control cage? Looks tight but sure would be out of the way.

[Racinbob 12,930]

My 2005 Classic has it under the seat. That spot is filled by the filter on a hydro.

 

 

The 314-H I no longer have.

 

 

I was a bit hesitant because of the long fuel line run on my 76 Reborn B-80 but it works great.

 

 

The Dino C-121

 

Edited 16 hours ago by Racinbob

[Bill D 2,817]

3 hours ago, sqrlgtr said:

@Bill D How does the Onan crank with that style pump. The hard to start after setting is only thing I have against the pump I have now it runs good just hard to start after setting for a few days. I put a one-way fuel valve on it at the tank, and it helped a bunch but still cranks over longer than I would like after setting.

 

This is where I had planned on putting it but would like to run that rock shaft I got from you also.

 

It still takes a little cranking to get it started, just like the original pump.  I just don't trust the Chinese knock off pumps, so I went this route.  Sounds like the check valves in your OEM pump are failing.

BTW, I think you may have me confused with someone else, I never sold you a rockshaft.

[sqrlgtr 2,782]

23 minutes ago, Bill D said:

I think you may have me confused with someone else, I never sold you a rockshaft.

that was meant for WHX??.. sorry for confusion 

Edited 14 hours ago by sqrlgtr

[oldlineman 1,697]

Edited 14 hours ago by oldlineman
Since I don't use the lights, I fed mine through light switch ,makes a great kill switch if needed. Also have replaced original fuse holder with weather proof one as suggested from members here thank you.

[953 nut 65,722]

Most any place where the suction of the pump will be lower than the bottom of the tank and the fuel hose will be protected from mechanical damage is good. The whole idea is to provide a net positive suction head pressure so the pump won't have to work as hard. They are great pumpers but lousy suckers.

[WHX?? 56,433]

5 hours ago, sqrlgtr said:

like to run that rock shaft I got from you (WHX??)

That might be the kicker. Mount the rock shaft and see if you can weasel it in ahead of it. 

[sqrlgtr 2,782]

Ok walllored this pump all over the place and settled on behind the motor on the frame. Had to make a little adapter plate to get mounted in right direction. I belive there would be enough room under the motion control in tunnel but would require more work than I wanted to do at this time but may revisit if I ever tare down to restore. Could have probably squeezed it in behind rock shaft also but again to much work  . Got everything hooked up and got my power from hot side of coil, which if Im not mistaken will allow safety switch’s  to kill fuel pump also when triggered. Also used a 10amp inline ATO fuse as soon as I came off coil. The riginal pump was healthy and would squirt your face full of fuel but it would turn over 4 ever before starting if it set for a week or so. She doesn’t turn over but once or twice now before firing . Oh yeah I installed a one way fuel valve right as line comes out of tank also. Thanks for everyone’s pics and comments and maybe this thread might help others down the road.

Edited 4 hours ago by sqrlgtr