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Fuel Pump Dramas......

arrydjay

By arrydjay,
in Engines & Forced Induction

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arrydjay Community Regular

arrydjay

Posted
Posted

So Ive been having some dramas with my fuel system.

Ive got an 044 and a surge tank in the boot with a walbro in the tank as a lift pump.

The other day I was driving and all of a sudden the car turns off.

I noticed that I couldnt hear the fuel pump priming, so I bypassed the relay and wired the 044 to direct power and it was enough to get me home.

Had a fiddle around and I ended up figuring out that the fuel pump fuse had blown, so I put another fuse in....(i pulled out a 15a and all I had was a 25a so I put that in)

Car started, I let it idle for about 5 mins while I packed up and all of a sudden it turns off again. Had a look and the new fuse had blown....

I thought maybe the fuel filter was blocked, so I took it out, gave it a clean, put it back in and started the car...

Let it idle while i packed up again, then as I walked around to the boot I noticed a strange noise.

It sounded like something was rattling away in my surge tank, but upon closer inspection I realised the noise was coming from my fuel pump... i let it go for a few mins and the noise just kept getting worse and worse so I just turned it off. Now I dont know what to do....

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https://www.sau.com.au/forums/topic/414295-fuel-pump-dramas/
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KURTIS34 Community Regular

KURTIS34

Posted
Posted

What gauge wire are you using ?

I have 2x 044 attached to a surge

1x 040 as lift pump

All direct wired on 3 separate relays

044 have a high amp draw you need to get your maths skills on make sure wire and fuse's are up too the task

arrydjay Community Regular

arrydjay

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Posted

ok so I figured out that the noisy 044 was just due to the fact that the lift pump wasnt working and the surge was emptying out.

I had a walbro 255 as a lift pump but im wondering if I should try something different. I would like something that isnt going to die in E85, but is the new walbro e85 pump too big to use as a lift pump?

KURTIS34 Community Regular

KURTIS34

Posted
Posted

ok so I figured out that the noisy 044 was just due to the fact that the lift pump wasnt working and the surge was emptying out.

I had a walbro 255 as a lift pump but im wondering if I should try something different. I would like something that isnt going to die in E85, but is the new walbro e85 pump too big to use as a lift pump?

Not sure if e85 safe but I'm running a 040 as lift pump on a flex fuel setup

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