wiring up the vro pump

[langer]

1996 130 hp put it on a new boat and cant seem to figure out the wiring up of the vro oil pump, it has two wires in a round rubber plug one black one solid tan...
help

 

[d.boat]

Re: wiring up the vro pump

Your engine should have a similar round plug to plug it into. It's called an Amphenol plug. Fuel pump plug to engine plug. Tge engine plug should also have black and tan wires running to it.

If your engine was disconnected from the VRO in the past, that engine plug might have been clipped off. You might be able to find black and a tan wires that remain (might be taped off at the ends?). Then, you can also directly wire. Black goes to a solid ground, tan is the alarm wire which eventually goes way up to the horn at the control box or dash board.

 

[langer]

Re: wiring up the vro pump

how does the res box get power if the tan wire is the alarm and the black is the ground?

 

[langer]

Re: wiring up the vro pump

can i just grab the two wires as they come out of the pump and splice into them?

 

[d.boat]

Re: wiring up the vro pump

how does the res box get power if the tan wire is the alarm and the black is the ground?

I don't know what 'res box' means. I don't think there's any power involved for the pump's sensor (which is the "no oil" sensor), the alarm sounds when the tan wire is grounded? So I think the alarm sensor is just a jump to ground. That's my understanding anyway. Hopefully someone will chime in if I'm way off base.

can i just grab the two wires as they come out of the pump and splice into them?

Yes, if you can find the corresponding tan wire from the engine -the one that was disconnected when the VRO was disconnected - just connect the pump's tan wire to it. If you find the engine's black wire that was disconnected, connect the pump's black wire to that. If you can't find the engine's black wire, just connect the pump's black wire to any good ground, like a convenient bolt on the engine, etc.

One thing I'm not sure of but think is true - I THINK you should be able to connect the pump's tan wire to any tan wire you see in the engine.

That's the way my pump is hooked up and it is a current "OMS" type pump that came with an amphenol connector but is installed in an older engine that was not equipped with an Amphenol connector. My pump amphenol connector was clipped off and the tan wire is simply connected to the engine's tan wire with a barrel connector, the black/ground wire is bolted directly to the engine block.

 

[langer]

Re: wiring up the vro pump

great
thanks

 

[d.boat]

Re: wiring up the vro pump

I'M SORRY -THE STUFF I POSTED ABOVE IS ERRONEOUS! In my mind I was thinking of the oil tank wiring, not the VRO/OMS pump wiring. Ive been going through both recently and just had a major brain fart.

One thing is not exactly wrong - you can just splice the pump's wires into the appropriate wires from the engine's electrical system.

Where I was wrong, is that I was thinking of the two pin TANK amphenol connector - simple tan and black.

The pump has a 4 whire amphenol connector - tan, black, purple and gray. Again, if your engine doesn't ahve the corresponding amphenol connector, just find the corresponding wires. They probably are there somewhere. I know that the tan goes to the tan alarm wire, the black eitehr to another black ground wire or to a solid ground.

Purple goes to the ignition. Therefore OP's original point about power is correct. There is power when the key is on. Therefore, I believe it could splice into any purple wire you see in the engine.

I'm not sure exaclty where the gray wire eventually connects.

Hopefully it will be obvious which wires were clipped or disconnected when they removed the VRO alarms. If not, keep asking because someone will be able to direct you better than I.

Again, I apologize for mixing up the pump wiring with the tank wiring.

Once you get it wired in, do you know how to test the no oil alarm?

 

[langer]

Re: wiring up the vro pump

all is well...i spliced into the tan and black wires from the pump and the alarm was quiet until the oil in the hose cause the primer bulb was not primed...silly me, i primed it and the alarm went off, motor ran great,
thanks for all your help.

jonah