No Fuel (03' 60 HP Four Stroke)

[tee-boy2]

Ok. Take a look at pic attached. I am getting spark. The fuel pump is pumping ( i took the outlet hose off the pump and gas shoots up into the air). Problem is, no fuel in the line that runs from the unit in the picture back to the injectors (bottom left corner of pic with the red quick disconnect ring). What is this unit? A regulator? What could be my problem?

 

[Dunaruna]

Re: No Fuel (03' 60 HP Four Stroke)

That is a fuel cooler. It also serves as the conduit for unused fuel to be returned to the vapor tank. If the injectors are closed, the fuel will use the cooler to return to the tank.

The cooler could be blocked up or your injectors are not activating. Check the fuses in at the front of the motor.

 

[tee-boy2]

Re: No Fuel (03' 60 HP Four Stroke)

OK. Will check fuses this afternoon. What typically gets blocked up on these things? Is there a fuel pressure regulator somewhere on these motors?

 

[tee-boy2]

Re: No Fuel (03' 60 HP Four Stroke)

For clarification... Is the vapor tank the large silver object with the fuel cooler being the smaller square object mounted on the front of the large silver object? Which could be blocked-the cooler or the vapor tank?

 

[Dunaruna]

Re: No Fuel (03' 60 HP Four Stroke)

The vapor tank is the bottom half of the light grey/silver object, the bit that is right next to the oil filter.

The top half of that is the high pressure electric fuel pump. The cooler is the dark grey object on the side (the thing with the hockey stick fuel hose). The regulator is on the back of the fuel pump.

 

[Faztbullet]

Re: No Fuel (03' 60 HP Four Stroke)

The fuel pump is mounted vertical in the VST tank, the top cover is where the float and regulator are mounted. First.. do you hear the electric pump turn on when you turn key to on postion? If not check connections,fuse,and voltage to pump. If you DO hear it, open drain screw in bottom of VST to see if any fuel in it, if no fuel float is stuck in VST cover not letting fuel into tank from mechanical pump.

 

[tee-boy2]

Re: No Fuel (03' 60 HP Four Stroke)

And I take it that the weatherpack connector on the top cover is the wiring for the fuel pump?

 

[Faztbullet]

Re: No Fuel (03' 60 HP Four Stroke)

Yep... If this engine has sat up for a while or running E85 fuel the pump could have went south..

 

[tee-boy2]

Re: No Fuel (03' 60 HP Four Stroke)

I pulled the plug at bottom of fuel cooler. No fuel came out w/ motor turning over. So, I hook 2 wires directly from battery to the pump connection. Fuel starts to come out of fuel cooler plug. Check for continutity at female plug to pump weatherpack connector and I get 140 ohms across the 2 wires (seems like a short). Check for 12 volts with key on. Get 12 volts briefly until relay cuts off. Hook the weatherpack connector back to pump and the motor starts. MOtor now starts and runs.

Strange... Any ideas what was going on?

 

[Faztbullet]

Re: No Fuel (03' 60 HP Four Stroke)

Relay could have bad contact internally and passing voltage but not amperage to run pump or pump was stuck and hooking direct to battery jarred it free.

 

[tee-boy2]

Re: No Fuel (03' 60 HP Four Stroke)

Relay could have bad contact internally and passing voltage but not amperage to run pump or pump was stuck and hooking direct to battery jarred it free.

does it make sense for me to have continuity 150 ohms on the plug coming from the relay? would only get a reading when the prongs on the ohmeter were in one direction (switch the prongs and wouldn't get a reading).

Where roughly is the relay for the fuel pump on this motor?