No fuel coming out of injectors

[MonkeyFella95]

Hi, hope someone here can help point me in the right direction, this is driving me crazy.

I've recently replaced all injectors, fuel lines and put in a professionally rebuilt fuel distributor. I jumped the RPM relay to test it, put the injectors in jars and pushed down on the intake and... nothing. After about a minute of the fuel pump running one of the fuel lines for the accumulator ruptured... F***.

So after replacing the fuel lines there, and put in a new accumulator while I was at it, I'm back to trying to figure out why the injectors aren't spraying at all. I've ran the pump since then (making sure not to leave it running for long this time so I don't explode the new fuel lines) and the same thing. Clearly I'm not getting low pressure from the pump because it had enough pressure to rupture the fuel line, but I'm totally at a loss for how to figure out why not enough pressure is getting to the injectors. I can feel the resistance when pressing down on the air intake when the pump is running and I know fuel is getting to the distributor.

When I got the car the engine ran but had an over-fueling issue because of the distributor being stuck in the fully open position. Clearly I've messed something up here but I have no idea how to diagnose what the issue is. Any help would be appreciated!

[82DMC12]

Probably have the lines backwards with the check valve blocking flow

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[MonkeyFella95]

Probably have the lines backwards with the check valve blocking flow

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Thanks for the reply. I've not replaced the lines at the fuel pump (yet) where the check return valve is, the fuel pump was clearly serviced at some point in the 2000's so isn't original and worked a year ago so there's no chance I've messed that up unless I'm not understanding something

[Bitsyncmaster]

So this is the first time you tried the new fuel distributor? Since your line ruptured, my guess would be a problem with the PPR not releasing any back flow. That would also explain why your not getting any flow at the injectors (it can't prime the FD).

[MonkeyFella95]

So this is the first time you tried the new fuel distributor? Since your line ruptured, my guess would be a problem with the PPR not releasing any back flow. That would also explain why your not getting any flow at the injectors (it can't prime the FD).

Yes this is the first time I’ve tried the new distributor. I’d assumed this was something I’d caused as the distributor was professionally rebuilt and supposedly tested before receiving it. I’ll look into the PPR. Really appreciate your reply.

I’ve been reading to try and understand exactly how the PPR works, it sounds like your saying that the regulator isn’t opening to allow fuel to return to the tank causing pressure to build up between the pump and the distributor which makes sense but I’m not clear on why that would cause the distributor to not prime, would that be because air is stuck in the system? Do you have any idea what might be causing the PPR to not be releasing any flow back? Sorry for all the questions, really appreciate you taking the time to reply to my post.

[MonkeyFella95]

Taken out the PPR and all looks okay

IMG_4009.jpg

Then I put a endoscope in to see if I could see anything, and this doesn’t look right to me. I’m not sure what that is in the end there but it doesn’t look like it should be there.

IMG_4010.jpg

[Bitsyncmaster]

That endoscope photo does look like something is broken off in the FD. The PPR photo does look normal as far as I can remember.

[MonkeyFella95]

Well time to complain to DeLorean GO about this. Anyone reading this my advice is do not ever buy a rebuilt distributor from them!

[Bitsyncmaster]

Well time to complain to DeLorean GO about this. Anyone reading this my advice is do not ever buy a rebuilt distributor from them!

If you have a compressor, try to blow it out with air into the return port.

[MonkeyFella95]

Well time to complain to DeLorean GO about this. Anyone reading this my advice is do not ever buy a rebuilt distributor from them!

I retract that completely. After emailing Arran from DeLorean GO he replied within minutes, on a Sunday, saying he will send out a new unit tomorrow for me.