Fuel Pump Issues

[Sideways]

For those that will remember I'm am completely stripping a 1994 Elite for track use. I've (finally) gotten to the stage of starting the engine after around 10 months and I have no fuel pressure.

The reason for this is that originally I have not voltage at the fuel pump so I "hot wired it straight of the ignition so I've got about 11.5v. No when I turn the ignition on (before turning the engine over etc) the fuel pump will turn but very slowly and it's getting VERY hot.

Have I done something wrong, is there a better way of doing this, will Batman save the day?

Your thoughts, as always would be hugely appreciated.

Thanks,

[TheBoy]

Does sound as if the pump has started seizing, and I suspect it already blew the fuse to fuel pump relay.  I wouldn't run it straight through ignition, as it will probably cause that to fail.

Possible, as well as pump seizing, could just be a blockage?

[Sideways]

So what would you suggest?

Which spool should I run it off and how does one check for blockages as it's a sealed unit?

Incidentally the fuse if fine so can only assume it's a prob a ECU.

[TheBoy]

So what would you suggest?

Which spool should I run it off and how does one check for blockages as it's a sealed unit?

Incidentally the fuse if fine so can only assume it's a prob a ECU.

I doubt it will be an ECU issue.  As said, more likely fuse (as it sounds like motor stalling) or fuel pump relay.  Assuming, of course, that the mice haven't been at the car whilst parked up.

Blockage wise, thinking along lines of jellified petrol in the pipes or pick up, though not sure if you can disconnect pipes near pump, as never looked...

[Sideways]

So what would you suggest?

Which spool should I run it off and how does one check for blockages as it's a sealed unit?

Incidentally the fuse if fine so can only assume it's a prob a ECU.

I doubt it will be an ECU issue.  As said, more likely fuse (as it sounds like motor stalling) or fuel pump relay.  Assuming, of course, that the mice haven't been at the car whilst parked up.

Blockage wise, thinking along lines of jellified petrol in the pipes or pick up, though not sure if you can disconnect pipes near pump, as never looked...

Thanks for that.

I've traced the wires back to the ECU and can't see any problems. The pump was spinning without a problem last week when I immersed it in water as a test, just doesn't want to spin now. Fickle thing!

Not being an electrician, any ideas what info I should be looking for at the pump (volts, amps etc)?

What is the fuel pump relay and what should I check to ensure it's working as it should?

Cheers again for your help mate.

[TheBoy]

I wonder if the water has caused corrosion in the bearings?

[Sideways]

That's a very good point!

I wondered at the time what drawbacks there could be when I did it and that never crossed my mind.

Is it a new pump job or can it be salvaged?

[TheBoy]

That's a very good point!

I wondered at the time what drawbacks there could be when I did it and that never crossed my mind.

Is it a new pump job or can it be salvaged?

No idea, sorry. Hopefully someone else will know...

[Sideways]

That's a very good point!

I wondered at the time what drawbacks there could be when I did it and that never crossed my mind.

Is it a new pump job or can it be salvaged?

No idea, sorry. Hopefully someone else will know...

That's fine mate. I'll go and soak it in WD40.

Cheers again

[Marks DTM Calib]

Thats what I would do....