Fuel flooding metering head then sump

The pipe you are looking at is a breather pipe - at worst you'll get a bit of oil down it, but there is no way you'd get petrol down it.

If petrol is getting into the sump then that would suggest piston ring failure - the way to check this is with a compression tester.

For the metering head. I'd take the top of the airbox off, and have a good clean underneath of it. Take the air filter out, put some paper towel in the bottom of the air box. Disconnect the coil and turn the engine over. Check the paper towel to see if you can see any drips.

Cheers Paul sound advice for me for future

Mr P I'll be honest I wouldn't know how to check if I was getting a spark

Paceman good idea that I will try that before I test the injectors and see if/where the petrol is entering the air box section  

Even if your injectors were leaking, the fuel would get burnt, but it would run like a dog. It shouldn't really fin its way to the sump unless your rings have had it. How many miles has it done?

It's done 112k but literally just had a full head gasket seal replacement would that include the rings?
Been told the petrol can get by the cylinders even if the rings are ok? I'm mechanic so I'm way above my pay grade now trying to understand anything further than an oil change ha

*no mechanic*

Petrol can get past normally good rings. I'd not worry about the rings/compression test quite yet.

Neither would I worry about ignition/spark too much - but by all means check it if you want, for peace of mind.

It sounds 99% like there is a metering head issue which is preventing the car running properly.

Thanks Paul

Funnily enuf it had a new metering head put on before it was garaged. I chucked the old one like an idiot. Not many mechanics understand this K jet system or metering heads at all. Finding blokes local to me who are capable and willing to work on these cars are getting harder and harder.

Would absolutely love to get this car running again

golf_cab_gti said

Mr P I'll be honest I wouldn't know how to check if I was getting a spark

Do not Stick your Tounge in the HV lead end, and have your hands on the car when someone starts the engine……

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Your Private parts will be in the dirt, and you will see a blinding blue arc in your eyes….  Think Taser on steroids.   

Remove your spark wire from the plug. Insert a phillips screw driver into the wire lead and ground it to the frame when some one tries to start the car your should see a blue arc where the screwdriver is a tad bit off the ground.

Right lads I have updates if anyone can help. I've tested all 4 injectors using just the ignition and bridging the relay into plastics bottles.

As soon as the ignition was turned all 4 injectors started spirting fuel out WITHOUT me having me lift the metering plate up. All did look to be sporting in a cone shape but I know this wasnt supposed to happen. Weirdly enough the horn started going off halfway thru the 1st attempt.

What I have noticed is that the metering head plate doesnt seem to sit flush on the left hand side…seems to be there is a gap? Dont know if this is right (please see pic)

I also tried pacemans trick with paper towel in the airbox and rightly so, fuel is leaking from underneath the fuel distributor. (Also see pic)

Also took a video of the injector test hooe that loads up.

Any help with this would be greatly appreciated I do feel like I'm making progress albeit it probably not good news

Seems to be a gap where red arrow is. Shud this gap be there?

The other side with the blue arrow doesnt seem to a be a gap. Not sure of this amount of gap would make the injectors run at such a speed but was coming out pretty fast

I also had the cold start injector in a bottle but nothing came out of this. Unsure if in this kind of test that would sport anything out

5th injector should spray on the first crank
of the key from the starter motor me thinks

This test was just with ignition turned once with ignition coil disconnected and main HT lead out, there was no cracking. Would the cold start still fire fuel out in this test? With petrol getting into my oil I presume the cold start is the last of my probs tbf 🤣😫

The flap should move freely up and down, and in the lowest position no fuel should come out the main injectors.

BUT I think its a red-herring issue, because fuel is leaking into the airbox. It could also be leaking internally elsewhere, causing it to come out the injectors (too much) irrespective of where the flap is.

So I think you need to either buy a known-good working one, or get yours refurbished. K-Jet was quite popular so there should be a number of specialists around but be prepared to pay for it….

Hi Paul
Yes the flap does move freely but I didnt need to lift it to get the injectors to spirt fuel out. So I guess what I need to know is that gap in the flap I have normal? If not is that gap enough to have the injectors run at what I would call a decent speed? Would leaky/stuck injectors produce such a spray of fuel?

The leak from under the fuel distributor I can only assume is coming from the control plunger. Paceman has resealed his fuel distributor and from the video I feel I can do this. But obv I dont want to go to this time and effort if there is other issues with the metering head. There is one on Ebay at min for £200 full metering head and fuel dist and airbox in 'good working condition'

First time my daughter has ever sat in it and asked if we could go for a ride 😩 need to get this car going lol