Jaz's 1985 240GL K-jet wagon project

VolDan · 2021-04-11T07:46:44+00:00

Nice. Are you planning on doing the engine wiring loom while you're at it?

Jaz

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On the bench, stuck pin.

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Remembered Dan said there was another setup in the boot, dug around and found it.

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Not stuck!

There are a couple of differences in the main body part and the part numbers, was planning on using the old lower with the new fuel distributor on it, but the part numbers are different, will it matter?

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Old is the black tag, unstuck one is the red and orange

Jaz

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Everything thing is back together in here, egr removed and blocked off.

Had issues with the fuel lines leaking and a couple were split so made some new ones up which seems to have solved a lot of the leaks, just have a slight weep on one of the crush washers so I'll grab some new ones to fix that

Fires up and runs, sits on 2.5k revs for about 5 seconds then shuts itself down. Will restart after a minute or so and do the same thing.

Fuel pump runs the whole time while cranking, running and after it's shut down.

It has a couple of vacuum leaks still so would expect the high idle but can't figure out the running issue.

ramrod

Do you lose spark when it stalls?

Jaz

ramrod no idea, what's the easy way to check?

ramrod

Take off the ignition coil lead from the distributor cap and touch it to engine ground whilst someone tries to start the engine

then if you have strong spark, test at the spark plug leads the same way

Jaz

ramrod yeah I have good enough spark cause the car will run for maybe 5 or so seconds then shut down, it isn't missing or anything while it's running

Jaz

ramrod

That sounds like running out of fuel

Jaz

ramrod yeah that was my thought, maybe the fuel filter is blocked? The pump runs the whole time so I'm assuming it's something else along those lines.

Yeah starts in starting fluid, or will start after maybe 20 seconds with the key to on and the pump running

ramrod

Does it then start on starting fluid sprayed into the inlet?

jamesinc

If you power the fuel pumps, and pull the injectors and put them into some plastic bottles, then reach into the air inlet and push up on the metering flap to open the injectors, you might see if there's any change after 5 seconds.

Maybe you have a fuel line in the wrong spot after changing the fuel distributor?

It could just be a faulty KJet relay also.

Jaz

jamesinc yeah I've got a couple of relays so I'll try that then pull intectors, it sounds fine when it's running and will start easy so I'm assuming it's nothing major

ramrod

What happens when you hold the revs up high (open the throttle) will it continue to run?

Jaz

ramrod na it stalls regardless of what I do, it will rev while it's running but still turn itself off

Jaz

Injectors are shutting down, tried 2 different relays and no difference, what's the next step?

Jaz

Opening and closing the air flow flap and not getting any fuel flowing, it will do that little spit every now and then

Jaz

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I have been running it a little and can rev it up, will still shut down after a short time but not after this amount of what feels like oil out of the intake

Jaz

ramrod

The fuel pumps need to be running full time (bypass relay) for the injectors to open upon lifting the airflow plate

Did you run the pumps permanently?

Jaz

ramrod yeah with one of the relays in it runs as soon as it's cranked and will run after cranking, the other relay only runs the pump when it's being cranked

jamesinc

ramrod < what he said.

If you had the pumps running, I'd say this is definitely a fuel delivery issue like debris in the system, blocked filter, etc. If that is the case then I would d/c the fuel delivery hose from the fuel distributor, run that into a bottle and see if it delivers fuel when the pumps are running. Unrestricted, it should pump quite a lot of fuel. If you have a coffee filter, you can pour the fuel back into the tank through the filter, and check for debris.

If the fuel delivery hose flows nicely, the restriction is in the fuel distributor/injectors. If it doesn't deliver a good stream of fuel, then either it's a pump/s issue or a fuel filter issue (or debris in the lines).

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