I have had my share of fuel pump woes in the past on my '99 @ and now I feel I have finally solved them with the recent install of this US made solid state Facet pump. Model # 40105
The original OEM pump failed after the contacts burned out. Probably not a 'bad' pump once it was modified for a suppressor to prevent the contacts from pitting. But the new OEM pump does not come cheap. $$ Alternative? Yes.
Next...the nice people at African Queens sent me the Mikuni vacum pump. It seemed to be the answer, and after a few thousand kms it was performing flawlessly. Then it seemed in hot weather conditions I would experience fuel starvation symptoms. Fuel was somehow bypassing and blocking the vacum source... well at least according to the people at AQ. The 'T' fitting trap mod to trap this fuel from AQ did not seem to work either. It was from the South African AT Club that I first heard of the Facet pump.
Ok, for only $29 USD plus shipping I can experiment. The first model of pump I ordered was #40106. The claimed pump pressure on this model is 4-6 psi. Another web source claims the pump pressure is 4-5.5 psi. I quickly installed this pump (hot wired) for a rally I attended. After 2,000 kms round trip it worked perfectly. Having not yet hard wired it to the fuel cutoff relay I occasionally would forget to unplug it (as it was wired direct to the battery) and after shutting the ignition off the pump would continue to run and fuel would spew out the carb overflows via the drain tube onto the ground. No problem, once I permanently hard wired it it to the fuel cutoff relay that fuel spill would be eliminated.
I now permanently hardwired the model 40106 in and drove it hard and fast. It was then I noticed a small amount of fuel coming from the carb overflows when idling at a stop. Mmmm....It was a leak and not acceptable. It was enough to tell me the 40106 pump pressure is just a wee bit on the high side.
Ok, I now ordered in the Facet Model # 40105. Claimed pressure is 2.5 - 4.5 psi, depending on the web source, I have also read where pressure is 2.5 - 3.0.
FYI. The pump model numbers are stamped on the pump mounts.
Time to install the 40105.
The pump measures less than 3" in any direction and weighs in at 18 oz.
Lets cut off the pump mounts which are not required. Don't forget those
Sand off any sharp edges.
The OEM pump rubber shock mount fits right over the Facet pump. Its a tight fit but it can be done. A little silicon spray on the rubber eased the installation.
Lets slightly bend the upper mount support upwards and lower downwards on
the frame to accomodate the Facet.
To install you simply push it onto the supports. Views are fuel "IN".
Fittings are 1/8" X 27 Internal Pipe Ports
Connecting the wires is straight forward. You can use your old connector
from the OEM pump and splice it in. Black wire from the new pump goes to the green wire which is (ground).
The red wire from the new pump goes to the wire that is colored blue/black. That wire in turn goes to the fuel cut-off relay as seen in the Haynes manual wiring diagram.
Connect wires using solder or a quality crimp style butt splice. Fuel hoses have to be shortened accordlingly.
If rubber shock mount should get damaged during the struggle to get it on the pump they can be replaced from Honda. p/n 16711-MN8-000.
Also, don't forget a few wraps of teflon tape on the threads of the brass fittings or you may have a leak.