pwood999

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Just been setting up to do a leak-off test on my son's 2004 TD4 FL1. Removed the leak off pipes from the injectors, and tried the ignition-on with engine off check.

No fuel coming from injectors tops, but lots coming out of the leak-off pipes ?? Surely there should not be flow from the return pipes ??

[UPDATE] Fix it by using two short loops of rubber hose !!

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Leak off test results after 1min. I'm assuming the containers are 100ml, so number 2 is 85ml after 1min. The other three about 30-40ml ??

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Hi,

The pipes should not be fully inserted in the bottle so you can see if it’s an intermittent or continuous flow.

Injector 2 has too much leakback compared to others, needs to be replaced.
 
Yes I figure injector 2 needs replacing or refurb. Started to get bits off to remove it, but got a problem with the fuel pipes. The nuts are siezed on the injector ports, so when I try to loosen the pipes the injector port turns as well. No room to get a 13mm spanner in there on the port either. This is starting to twist the pipe, so I stopped. Will re-visit when we have more time.

I also tried undoing the clamp on injector two plus the fuel rail end of the pipe. Injector seems well stuck in the head, so it's gonna need serious freeing up - probably the top off & use my slide-hammer injector puller. I have the correct fitting, but it's going nowhere with the fuel pipe attached.

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Hi,

You can try to remove the injector with the metal pipe. Replace the injector including the metal pipe. Use an injector extractor tool, injectors are a pain to remove.

Regards.
 
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That’s my plan but injector gonna need a puller. I have slide hammer injector puller but need to get the tops off first. Job for next weekend
 
Assume you have tried flat bar on cover to spread load and a pry bar under the injector fuel nut ?? Usually works. Short and sharp.
Yes tried that using a length of 4mm x 25mm bar, but injector not moving. I was gonna try loosening the clamp nuts a turn or so, and then fire it up to see if the engine ejected them. Told my son to squirt the injectors & pipe nuts with penetrating fluid each night this week after the engine cools down.

The engine eject process didn't work with the glow plug on same cylinder though. We left that one loose for 2-3 months & daily drives never spat it out. It starts ok on 3 new glow plugs though. I did a thread on here somewhere showing my home made glow puller. See here https://www.landyzone.co.uk/land-rover/glow-plug-replacement-freelander-2005-td4.300034/post-5544563

I have a set similar to this for the injectors.
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