E30 Zone

I'm having a bit of a problem with my fuel pump. I modified the original intank pump to accept the s50b32 pump and got everything running fine. After a few tests it stopped working and it turned out the small rubber reducer I had used had split down the middle, presumably down to the 5bar pressure. So I replaced this with a much thicker bit of rubber tube and everything seemed fine. Finally got the car Mot'd and on the road, took it for a spin and after about 45 minutes or so of driving the fuel pump disconnected meaning I had to be towed home by the AA (long range tank was full of fuel meaning I'd of had to syphon off about 15-20 litres of fuel just to get the pump out). So after two failures I'm thinking this is not the way to go. Should I replace the original intank pump and fit a 5 bar external?
Cheers,
Alex

MrBenn wrote:Should I replace the original intank pump and fit a 5 bar external?

Others have run the B32 pump in the E30 carrier without problems. It may of just been the pumps time??

From memory, some have fitted a Walbro pump into the E30 carrier. Not because its any more reliable, but because its cheaper than a B32 pump.

the tubing your using is I presume suitable to be immersed in fuel. My first attempt failed after a short time, got some tubing out of a 5 series tank an its been fine for years.

jmc330i wrote:

MrBenn wrote:Should I replace the original intank pump and fit a 5 bar external?

Others have run the B32 pump in the E30 carrier without problems. It may of just been the pumps time??

From memory, some have fitted a Walbro pump into the E30 carrier. Not because its any more reliable, but because its cheaper than a B32 pump.

I replaced my intank fuel pump with the Walbro one. Turned out that I still have to keep the external pump because the Walbro couldn't provide enough juice. Weird.

As HenryM3 already said you NEED the right tubing material.

I didn't want to get into trouble and have just used the whole intank assembly of an E36 B32.
I needed a swirlpot anyway so I combined the two things.
Fed by the low pressure intank pump

made a swirlpot which accepts the E36 assembly



pressure tested to 2bar


and fitted in the boot with an E36 fuel filter

It turned out I had accidentally picked up a peice of servo tubing not fuel line, hence why it only lasted a few days, its since been swapped for fuel line and has been fine so far but I am aware it probably wont last and as has been said above you need proper "in tank" fuel line. Thanks for the tip of where to find some cheap Harry

UweM3 you flash sod

HenryM3 wrote:UweM3 you flash sod

only hitting 2 birds with one stone. Form follows function is my motto.