Vin

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13 years 8 months ago #12503 by Proton_Ice
Replied by Proton_Ice on topic Vin
Pump and fliter is on my table.
I empty the tank and after i have test with the homemade switch to bypass the pump relay and there ia 12.4 V.
Kiln Red, on the pump i saw a red dot near the + connector.
Pump mybe dead. I will try to open it and see what happen.

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13 years 8 months ago #12505 by Kiln_Red
Replied by Kiln_Red on topic Vin

Proton_Ice;12858 wrote: Pump and fliter is on my table.
I empty the tank and after i have test with the homemade switch to bypass the pump relay and there ia 12.4 V.
Kiln Red, on the pump i saw a red dot near the + connector.
Pump mybe dead. I will try to open it and see what happen.


There is no way to open the pump. The case and internals of the pump are pressed together. Even if you were to separate it, there would be no reliable way to reassemble it. Funny that your pump had a red dot as I have never seen one. I'd definitely replace the pump, at this point. I unfroze one once only to have it fail on me a couple of weeks later.

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13 years 8 months ago #12507 by Proton_Ice
Replied by Proton_Ice on topic Vin
The idea to open the pump is curiosity, just to know that's going on, what fail.
I try to find document on but nothing on the net.
Sur i will buy one brand new, i don't want to do the job again in 4 weeks !

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13 years 8 months ago #12508 by Kiln_Red
Replied by Kiln_Red on topic Vin
The failure is almost certainly going to be the result of varnished fuel that has seized the pump motor.

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13 years 8 months ago #12510 by wallyp
Replied by wallyp on topic Vin
Your English is far, far better than my non-existent French! It is completely acceptable - if we have a problem, we will ask you to explain.

When you get to the fuel pump, put your hand on the fuel pump and have a helper turn the test jumper switch on and then back off. If the pump jumps slightly, or goes "klong!", the pump may have failed, or it may be jammed by a piece of rubber from a failed internal (inside the fuel tank) fuel pump. Do not leave the switch turned on.

If this is the result when you turn the switch on briefly, look carefully at the electrical wires on the fuel pump. If there is another pair of wires that run to the plug where the fuel line comes out of the fuel tank, you have an internal fuel pump.

Let us know what you find.

Wally Plumley
928 Specialists
www.928gt.com

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13 years 8 months ago #12511 by wallyp
Replied by wallyp on topic Vin
OK, I was late in replying.

Connect the wires to your fuel pump in reverse order - that is, hook the positive wire to the negative terminal of the pump, and the brown negative wire to the positive terminal. Click the jumper switch on and off several times. If the pump starts running, remove the wires and see if you can shake or wash any small particles out of the pump openings. If so, the pump may be usable.

Check the wires to see if there are electrical wires hooked to the plug where the fuel line comes out of the tank. If so, you have an internal fuel pump. The rubber hose from that pump to the tank fitting usually fails. You can replace the hose, or you can remove the internal pump and replace it with a strainer.

Wally Plumley
928 Specialists
www.928gt.com

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