Fuel issue

« **on:** June 28, 2015, 10:15:37 AM »

Okay so some you guys of been to Lake with me no and I even posted something on here while back about it but I've been having a fuel issue that I think I got it figured out. I thought the diaphragm on my fuel pressure regulator was going bad the rebuild kit was $68 but a new aeromotive fuel pressure regulator was only 140 so I bought the new fuel pressure regulator. So I started the motor again and my feul pressure was 7 1/2 in my pump was kind of making a little bit of noise fuel pump that is andI grab it n feel the pump and it was hot to the touch so I guess I'm gonna have to buy a new fuel pump this week. Stay away from the Procomp fuel pump they're cheap only have maybe 10 12 hrs. on my boat and it's already going out

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« **Reply #1 on:** July 01, 2015, 06:29:44 PM »

Okay so I put a new areomotive fuel pump in it today in new pump holds the pressure well put the pump itself while running stays very smooth and then will have blips of like. Inconsistent running and then cleans back up if anybody wants send me a number and I will send you a video if you have solutions or is it normal for the pump not to be super smooth and steady

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« **Reply #2 on:** July 01, 2015, 06:57:17 PM »

Is that wired in with a relay??? If not you'll burn that one up too.

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« **Reply #3 on:** July 01, 2015, 06:59:02 PM »

Are you trying to draw through a filter or water separator?

« **Reply #4 on:** July 01, 2015, 06:59:55 PM »

Filter n jake what kind of relay

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« **Reply #5 on:** July 01, 2015, 07:08:13 PM »

30 amp 4 pin relay. 👍👍👍

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« **Reply #6 on:** July 01, 2015, 07:08:56 PM »

I have a 30 amp fuse but not a four pin relay and how do you wire that into a normal jet boat with no fuse block

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« **Reply #7 on:** July 01, 2015, 07:30:18 PM »

85- ground to battery
86- power from the switch
87- to the fuel pump
30- power from the battery

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« **Reply #8 on:** July 01, 2015, 07:33:26 PM »

This is for a car but same idea.

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« **Reply #9 on:** July 01, 2015, 07:34:12 PM »

Thanks Jake 👍🏻I googled the relay for the pump and jegs has one so I just called them and ordered it takes a fucking week to get here .

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« **Reply #10 on:** July 01, 2015, 07:34:48 PM »

Do you think maybe seven minutes a running I damaged the pump

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« **Reply #11 on:** July 01, 2015, 07:37:29 PM »

Quote from: Squirrel Master on July 01, 2015, 07:34:48 PM

Do you think maybe seven minutes a running I damaged the pump

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Na, you should be fine. 👍👍👍

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« **Reply #12 on:** July 01, 2015, 07:38:33 PM »

I really appreciate that you help me out man I don't know shit I love the site

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« **Reply #13 on:** July 01, 2015, 07:46:06 PM »

Quote from: Squirrel Master on July 01, 2015, 07:38:33 PM

I really appreciate that you help me out man I don't know shit I love the site

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No problem bud. 👍🚤💦💦💦

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« **Reply #14 on:** July 01, 2015, 10:37:11 PM »

Quote from: Squirrel Master on July 01, 2015, 07:34:12 PM

Thanks Jake 👍🏻I googled the relay for the pump and jegs has one so I just called them and ordered it takes a ******* week to get here .

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if u need it asap your local parts store should carry a 40 amp relay..

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« **Reply #15 on:** July 25, 2015, 01:24:57 PM »

OK guys I'm stumped I put a new aero motive fuel pump and regulator and the relay all that last trip out boat ran great but my fuel pressure was way low like down the 5 1/2 from seven I just thought that was due to the heat on the gauge. So today I go out and I bump my fuel pressure up to. 8 pounds and I go out it runs good I get by Sandy Cove I go on a cruise around the lake then I go to head back towards the dock and on the way in I get all over it in my motor wants to die I look back I have no pounds of pressure so I limp into the dock at only 2 pounds of pressure. I take the boat out the water I turn my fuel pump on on the ramp with the boat out of the water I have 3 1/2 or I go home I put in the garage check it again now I'm at just under six as it stays out the sun in the garage it's slowly rises up to 7 over 10 minutes. Can the sun hitting my pump make it overheat? What can I check 😡

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« **Reply #16 on:** July 25, 2015, 02:06:54 PM »

I would start with the suction lines and fittings from the tank to the pump. You want minimal restriction there. This also means not trying to draw through a restrictive filter.

You also don't want to suck air and break prime. Ideally, it should be mounted as low as possible and behind the pickup.

My guess is that your suction lines might be collapsing and/or your tanks aren't venting. That could also cause your pump to overheat. Electric fuel pumps are both cooled and lubricated by the fuel flowing through them.

Try running a good volume of fuel, through the system, into a gas can while you observe not only the flow, but if the suction hoses are collapsing.

Good luck,

Joe

« **Reply #17 on:** July 25, 2015, 02:33:27 PM »

I'll try it I have all new steel braid n fittings

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« **Reply #18 on:** July 25, 2015, 08:46:15 PM »

Quote from: Squirrel Master on July 25, 2015, 02:33:27 PM

I'll try it I have all new steel braid n fittings

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. Talk to Dennis he had a similar problem.

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« **Reply #19 on:** July 25, 2015, 09:08:57 PM »

Quote from: jimpen on July 25, 2015, 08:46:15 PM

. Talk to Dennis he had a similar problem.

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I had almost similar problems. Heat on gauge is a big problem, set psi at home in shade, what filter are you running. Micron? New lines have a tendency to to make regulators stick. I ended up running 2 fuel filters with one being a 40 micron and cured my problems. I almost torched my boat because of this issue so keep a fire extinguisher handy just incase it sticks wide open.

"RTCP"

« **Reply #20 on:** July 25, 2015, 11:30:51 PM »

I would make it a return system takes heat and pressure problems away.

« **Reply #21 on:** July 26, 2015, 07:46:34 PM »

Have a return system gonna pull n check hoses this week

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« **Reply #22 on:** July 27, 2015, 11:42:52 PM »

Be sure sure to check the return pressure to see it hasn't changed, good luck

« **Reply #23 on:** September 05, 2015, 02:38:16 PM »

So I redirected my fuel lines open my gas caps turn fuel pump on I'm only get in 6 pounds of pressure I turned it up from the fuel pressure regulator and then fire the motor and my pressure drops to fucking zero shut motor off back to 6 lbs I let fuel pump run and run and the fuel pump is hot as fuck so hot that my fuel lines feel hot to the touch after the fuel pump so I just got a bad pump from aeromotive right???

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« **Reply #24 on:** September 06, 2015, 09:17:08 AM »

When I had my carb done at c&j they recommended 6psi max fuel pressure

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