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044 Pump Issue

Guilt-Toy

By Guilt-Toy,
in Engines & Forced Induction

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tacker Mentor

tacker

Posted
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i have a small alumimium radiator type thing i was going to use but not sure if its quite big enough.

The measurements are 250mm long 50mm wide and 50mm high, would that be enough.

PS unit has been pressure tested to 90psi is a hydrolic oil cooler in another life.

tacker Mentor

tacker

Posted
Posted

i have a small alumimium radiator type thing i was going to use but not sure if its quite big enough.

The measurements are 250mm long 50mm wide and 50mm high, would that be enough.

PS unit has been pressure tested to 90psi is a hydrolic oil cooler in another life.

tacker Mentor

tacker

Posted
Posted

i have a small alumimium radiator type thing i was going to use but not sure if its quite big enough.

The measurements are 250mm long 50mm wide and 50mm high, would that be enough.

PS unit has been pressure tested to 90psi is a hydrolic oil cooler in another life.

Al Grand Master

Al

Posted
Posted

I have a bosch 044 mounted externally (in the boot, near the battery, R33), it feeds off a 2ltr surge tank that is feed by the std in-tank fuel pump.

I am just trying to grasp what you call normal and noisy. From day one my pump has consistanly been loud, where i can hear it even with a loud exhaust. Now my exhaust does not give me a headache or drown too badly, while crusing at 100, but is acceptably loud.

Also, how can you tell if your afr are leaning out? You mentioned surging, etc; is that like a slight hunt on idle, as mine intermitantly does this, but it usually gets worse when the headlights are on.

Cubes Grand Master

Cubes

Posted
Posted

Well my pump played up tonight... I've suspected the pump for the last 6 months as its only been the last 6months I've been having the occasional surge feel off boost & light throttle. I've swapped out afms, ecu's, tps, ignitors everything. It recently came good after giving the ic pipe clamps a re-torque (coincidence).

Primed the car, fuel pump made its usual noise but its speed was fast slow fast slow. Cranked the car and it wouldn't kick. Gave it another crank and it spluttered in to life, drove down the road and it just died, no fuel pump noise. Sat for a second, cranked and drove and it appeared fine again.

I'm up for a new pump.

To4gtr, do the stock gtr pumps flow enough for 300rwkw maybe a touch more with 40psi base fuel pressure?

tacker Mentor

tacker

Posted
Posted

LOL in my limited experience all things electrical, i know that motors just dont heal themselves all that well, they either work or they dont ( not sure about the pump side of this but motor i reckon i know ) if the smoke gets out of the anything electrical they dont work very well after that.

If you dont mind me saying it sounds like you have loose conection some where for it to work and then stop and then work again, no fuse blown or such foul happenings ?

and if anyone can invent a way of putting the smoke back into any electrical equipment you will make a fortune.

Guilt-Toy Grand Master

Guilt-Toy

Posted
  • Author
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FIXED!!!

I asked a mate of mine who had a 1j cresida and he played around with tranny coolers a while ago and had one sittin there which i scored for $20... Got 2.5 meters of fuel hose and mounted it up front.

The pump was allways warmish before and when it was making lots of noise it was very warm.. now after 1 hour and 30 minutes of driving the pump was COLD. cold..... interesting and it makes no loud noises at all anymore and the afr's are stable as hell.

I pulled up at the twin servo's on the freeway after 45 mins of doing 120ks an hour and it was very cold tonight and i felt the pump - cold. felt the fuel cooler and it was not as cold as the fuel pump was but it was not warm either... So i am guessing it is doing the job but it might need to be bigger.....

Weird thing is that i felt the fuel rail on the engine and it was cooler then fuel cooler at the front of the car.. I think i will leave it how it is for now and see how it goes in traffic on my normal working week this week...

So yeah im stoaked.. no more afr issues and a happy "cool" 044 pump not whinging at all! Cant complain for a $35 mod....

Here are some pics.. ignore the cable ties i will be fixing that up shortly :( ran outta time! i mounted one side properly i just gotta extend the bracket a little bit.

I tried to up the boost to 25psi and the coilpacks were dien on me so i taped up the new ones that i had purchased a few weeks ago and installed them and now every time it hits 25psi it was blowing the intercooler piping off EVERY time.. came off 4 times.. so i need to pull them all out and get them welded so they dont come out anymore! one thing after another!!

post-1240-1178453909.jpgpost-1240-1178453798.jpgpost-1240-1178453669.jpgpost-1240-1178453570.jpgpost-1240-1178453437.jpg

Guilt-Toy Grand Master

Guilt-Toy

Posted
  • Author
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that's sick! how big is that mofo? that's massive!!

hehehehhehee yeah man i still cant believe that i got it on my fuel line :( its just really overkill if you ask me.. but it works so my pump is happy... pump is happy i am happy... hehee

well done mate going to have ago at this myself

cheers mate - remember put it on the return line so you put it after the regulator as it goes back to the tank.

Cubes Grand Master

Cubes

Posted
Posted
LOL in my limited experience all things electrical, i know that motors just dont heal themselves all that well, they either work or they dont ( not sure about the pump side of this but motor i reckon i know ) if the smoke gets out of the anything electrical they dont work very well after that.

If you dont mind me saying it sounds like you have loose conection some where for it to work and then stop and then work again, no fuse blown or such foul happenings ?

and if anyone can invent a way of putting the smoke back into any electrical equipment you will make a fortune.

lol Well you don't. :(

I've had 2 fuel pumps in the past go in a similiar fashion.

One in a VN commodore and another in a VL. Both began working again once given a little time to cool.

I should mention the second VN pump (aftermarket cheapo) simply just died; unlike the first oem pump that worked then showed signs of leanout then worked again once it cooled, it wasn't long until it just stopped working.

Also had a fuel pump die in a 318is BMW. That simply went from good to nothing. Dead.

Guilt-Toy Grand Master

Guilt-Toy

Posted
  • Author
Posted
and if anyone can invent a way of putting the smoke back into any electrical equipment you will make a fortune.

Hahhahahahahaa!!!! maybe you can run a little cooler to keep the smoke temp's down so there is less chances of the smoke getting out...

Guilt-Toy Grand Master

Guilt-Toy

Posted
  • Author
Posted

yeah well i been thinking about that one.. i might have to re-locate it somewhere else later on...

Good stuff - well sorted - however - just make sure you don't have a front end crash, break the cooler, fuel everywhere, flash and goodbye car and perhaps driver.
Lunatikk Rising Star

Lunatikk

Posted
Posted

I'm going to state the obvious here & suggest you take very serious notice to the advice John from UAS gave in regards to where to mount the cooler. Do you think he went to the effort of placing it in a protected (relatively anyway) space & ran the ducting etc just for the fun of it????

BTW, nice work with the fix. Just move the cooler before it BBQ's you or someone else :(

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