M400 Pump Failure - what replacement

[andrewr]

My M400 fuel pump has failed. It draws current, but doesn't spin.

Shall I replace it with a Bosch fuel pump 0580 254 044 from ebay at £137. Do I need any additional parts to fit this pump.

Or is there a source of proper M400 pumps (for quietness) cheaper than Nobles £250?

One last question - I have half a tank of fuel, will it all flood out when I disconnect the pump?

Thanks in advance.

Regards

Andrew

Edited by andrewr on Friday 25th June 18:16

[Metalman]

You can block up the vent pipe to stop air going back into the tank when you disconnect the pump, in turn it should stop fuel from coming out but you will get some to start with. Just make sure you have a bucket to hand and and no one is smoking.

[Blu3R]

..... and you've pulled a lead from the battery

[TuxMan]

i can get you a new 044 for less then that !!! give me a shout .

[andrewr]

Simon,

is the 044 a straight replacement, or do I need piping adapters etc. All the pictures I've seen of the 044 seems to show a different input arrangement.

Thanks
Andrew

[TuxMan]

Don't know for sure but the STD pump is a straight swap for a 044 when you upgrade ,

[david.mt]

Andrew - please let me know how you get on and which pump you finally use (and any issues with connectors etc) as my pump became much louder this morning so may be on its way out.

[andrewr]

All fixed now.

When I came to fit the 044 pump the inlet port thread is a M18 / 1.5 which is larger than the M400 pump. I therefore needed to buy an adapter to fit it.

I bought:

1 off Goodridge Alloy adapter - 10JIC x IG-306-10-M18D
1 off Oil Union Straight push on -10JIC for 5/8 HEF7-10
1 off copper folded washer M-COP-M18
2 off alloy crush Washers G-CW901-M12

All parts bought from Merlin Motorsport at Castle Combe.

I also needed to find a M6 Nut and washer as the 044 pump uses a M5 and M6 for the electrical connections, whereas the M400 pump uses an M4 and M5.

The car running fine again - drove to the MOT and it passed with no problems.

Thanks to Tuxman and Dave at Jetstream for their invaluable advice.

Regards
Andrew

[TuxMan]

Well done Andrew car will be good on th 044 pump just make sure its not noisy or sounding laboured as the return can sometimes be a issue .