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Shurflo pump question? Help please

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Old Jan 3, 2010 | 03:22 PM
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Default Shurflo pump question? Help please

I have the 8000-643-210 pump. Have it connected thru a 30 amp relay. Is this pump a constant running pump or does it cycle on or off? I disconnected the out put and started the car but i didn't get any oil out of that side. I double checked all the wiring and everything is good with 12.5 volts at all connections.
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Old Jan 3, 2010 | 07:42 PM
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constant running
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Old Jan 4, 2010 | 12:07 PM
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Damn I can see it or feel it running. Should it be noticeable? I started the car and disconnected the output but got nothing coming out.
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Old Jan 4, 2010 | 03:34 PM
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It probably puked-out on you already, those pumps are not designed to move any hot motor oil.
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Old Jan 4, 2010 | 04:04 PM
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There are a few people here running them without any problem. This car has ran for about 1 minute total and hasn't pumped anything thru it yet. So I doubt that is a problem.
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Old Jan 4, 2010 | 04:36 PM
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Do u have it for a drain for the turbo if so then u have to run the car so the oil can move through the turbo and the pump picks up and return it to the pan.
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Old Jan 4, 2010 | 05:04 PM
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Yes I know that but the drain from the turbo to the pump is full with nothing coming out of the pump.
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Old Jan 4, 2010 | 05:20 PM
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You can hear it running? There loud as hell, don't have to guess if it's on.
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Old Jan 4, 2010 | 05:38 PM
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That is what I figured. Do you have one?
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Old Jan 4, 2010 | 10:59 PM
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Yes, works well so far.
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Old Jan 5, 2010 | 05:17 AM
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How do you have it wired?
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Old Jan 5, 2010 | 08:09 AM
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From a 12v switch source to the relay, power for the pump comes from the positive post on the drivers side engine compartment with a 25amp fuse.

I did have a problem when I wired it per the STS instructions, the fuel pump wire from the pcm that they tell you to tap into didn't have enough voltage/amperage to consistantly turn the pump on.

You did check the arrow on the pump to make sure it's flowing in the right direction?
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Old Jan 5, 2010 | 12:53 PM
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Do you have a voltage tester? This is the easiest way to get you on track. Check the power source at the pump and make sure it's getting power (or not).
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Old Jan 5, 2010 | 02:07 PM
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Originally Posted by BlwnLs1GTO
Do you have a voltage tester? This is the easiest way to get you on track. Check the power source at the pump and make sure it's getting power (or not).
huge time saver.
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Old Jan 5, 2010 | 03:19 PM
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Already did 12.5 volts at all connections
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Old Jan 5, 2010 | 06:01 PM
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[QUOTE=mike
You did check the arrow on the pump to make sure it's flowing in the right direction?[/QUOTE]

Like he said.
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Old Jan 5, 2010 | 06:08 PM
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Yes i did but that has nothing to do with the motor running.

I talked to Shurflo today they believe it is the motor or wiring to it.
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Old Jan 5, 2010 | 06:14 PM
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Originally Posted by MUSTANGBRKR02
Yes i did but that has nothing to do with the motor running.

I talked to Shurflo today they believe it is the motor or wiring to it.
Asking about the arrow was to address the issue you brought up about no flow. I guess the only thing you can do is verify power at the pump and a good ground.
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Old Jan 5, 2010 | 06:21 PM
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both good. I might just go with a Mocal pump. Like three times as much but hopefully this one will work. I am trying to get the distributor to send me one but they want to evaluate the one i have before they do.
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