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Old 28th November 2021, 23:40   #11
Arctic
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Hi Martin.
When was the fuel filter last changed out, also check the flow on the fuel pump both behind the OS wheel arch liner.

1

Have you checked the pot for water, as it as a plug you can undo to let out fuel to check if any water is present.
2

3

Regarding the injectors i note you did a full leak back test, and one was leaking so you changed it, but how did the others fair, personally when i find a injector needs changing out i prefer to pull all four, clean them then add new copper washers.


You have a clean air filter also i presume, have you tried unplugging the MAF sensor and starting the car from cold, without a sniff of easy start.

Check the fuel rail sensor plug for corrosion to the pins, spray with contact cleaner only. there is also a new lead should it be the plug that's breaking down.
https://www.island-4x4.co.uk/fuel-pr...20-p-6875.html

You could most likely make one up for less.

T4 should help with diagnosis
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Old 29th November 2021, 09:21   #12
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Mike ok thanks I will check that

Artic I will have to ask the previous owner about the fuel filter and I will check for water
I am going to do a compression test then pull the other injectors (all the same on leak off) and get them tested and yes tried no air filter and unplugged the MAF
I had assumed the pressure sensor was working as I got a live pressure reading but I will check that as well
Thanks for the advice
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Old 29th November 2021, 17:28   #13
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Bit of an update I have pulled the other injectors and No 4 is rusty down the body of the injector going to check the engine tomorrow with a bore scope
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Old 30th November 2021, 02:15   #14
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Bit of an update I have pulled the other injectors and No 4 is rusty down the body of the injector going to check the engine tomorrow with a bore scope
HI Martin
Clean the body of the injectors, you could then remove the tip and clean those out with carb cleaner so the spray pattern is the same five fine spurts.

1

2

You could go the whole hog a strip down the injectors and clean then all through, you may need new shims or O-rings you will not know until the strip down.
3

Most of the time you will get away with just cleaning the tips
4

5

6

7

8

Make sure you are super clean doing the work.

And always fit new copper washes before re-fitting the injectors, the post hole also need to be clean even if you have to suck out any debris.
9

10

11

12

13

14
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Old 30th November 2021, 15:40   #15
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Hi Artic

just tried with a spanner and they wont budge dose it need more force as I don't want to damage them
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Old 1st December 2021, 01:11   #16
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Hi Artic

just tried with a spanner and they wont budge dose it need more force as I don't want to damage them
Hi Martin.
Clamp the injector into the vice, and use a ring spanner to crack the cap cover, first clean any dirt around the top, with a nylon or brass wire brush.

1

Crack the cover 15mm ring spanner, they are quite tight, once cracked undo a little then tighten it back down with your fingers, once again clean any dirt that as risen from opening the cover, repeat this until all dirt and been cleaned.
2

keep you finger on top the the tip while doing this procedure.
3

4

5

6

as you lift the cover hold down the tip.
7

Now slowly remove the tip take great care as there are two little locating pins, and and a centre shim.
8

Do not lose any of those.
9

Place the tip on a clean piece of paper with the cover, note the centre pin.
10

You need to tap this centre pin out by just knock the edge of the body on the paper which should be on an hard surface, once it starts to come out you can grip it and pull it out fully.
11

12

Spray them with carb cleaner and wipe clean.

Then with the body in your hands spray carb cleaner through the centre so you can see the spray come out of the tip in a 5 hole spray pattern
13

14

Clean inside the cover with carb cleaner and a rag refit the pin in to the tip, make sure its free to move, you can dip it into some diesel if you like.

Re-fit in reverse of taking apart, this is the simplest way of cleaning the tips, you will now know that the spray pattern is equal.

If the injector is leaking internally due to a shim or tiny o-ring then you would need to do a full strip down which is time consuming and you need a sonic cleaner.

Once you have cleaned all the tips add new copper washers and refit to the same place they came from in the engine.

Hopefully there is no leak back and the car starts better.
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Old 1st December 2021, 16:43   #17
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Problem solved I left a cup of derv to sit overnight and this morning it smelt of petrol so I put a match to it and yes it burnt should have done that on day one as others suggested I just didnít expect it as the seller who is a engineer had spent 3 months trying to fix it for his mum I think he should asked her for the receipt when she filled up. But on the plus side I did the glow and the injectors and my son has a bargain
A really big thanks to everyone for the help
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Old 1st December 2021, 16:52   #18
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Great result as I suggested it was petrol very early on in this thread, but must just say a big thank you to Arctic for yet another excellent detailed reply to this
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Old 1st December 2021, 16:56   #19
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Yes Dave I should have listened and also I have learnt a lot from Artic with this
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Old 1st December 2021, 17:21   #20
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Yes Dave I should have listened and also I have learnt a lot from Artic with this
This is what the club is all about and we are all here to help each other where we can, Without people like Arctic with his excellent posts and pictures some of us would not dare to tackle some of the jobs they do
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