One injector is screwed in??

[Tiny Tim 610]

Good evening all,
I've been trying to do some work on a friends Ford Transit MK7 2.2 TDCI. Three of the diesel injectors have come out absolutely fine, but the injector on the left is on a screw tread, and I can't unscrew the injector as it fouls on the rocker cover. First question, is this threaded injector normal manufacture? Second question, how do I remove this injector?
Many thanks for your help and suggestions.
Regards,
Tim.

[Stumble]

What year ?
How do you know its on a thread ?
Farr as I know it shouldn't be

[Altransit]

Mk7 injectors are all push fit, and held down with clamps and bolts. It may be that you've had a blowing injector seal and the injector is locked in place with the build up of carbon deposits

[Stumble]

And or that one has the copper seal stuck on it
Should still come through the rocker rubber, if not prise rubber seal up

[Tiny Tim 610]

The injector turns freely anticlockwise but then locks tight when turning clockwise. There is plenty of movement in the injector for it to pull free, but something is definitely holding it there.

[Altransit]

As I said, it's probably being held in by carbon deposits, my No3 injector was the same. It needed a couple of hours turning side to side whilst applying upward pressure, and it eventually came out. Having another pair of hands helps

You need to be careful not to damage the injector too

[Tiny Tim 610]

Just to confuse matters, I believe the van is 2006, but it's not the original engine!

[Tiny Tim 610]

As I said, it's probably being held in by carbon deposits, my No3 injector was the same. It needed a couple of hours turning side to side whilst applying upward pressure, and it eventually came out. Having another pair of hands helps

You need to be careful not to damage the injector too

Have left to soak for 24hrs and have had two pairs of hands on the job! As mentioned, it turns anticlockwise beautifully until it can't turn anymore due to fouling rocker cover. Turning it back clockwise, it just goes solid.

[Tiny Tim 610]

I've had a thought, and it hurt!
Darkness has stopped play for now, but I'll have a look tomorrow and let you know!!

[dumper]

If you take the rocker box off will it turn a full 360 degrees may help if possible this is just a guess .

[Tiny Tim 610]

As promised, here's the update.

The injector was refusing to come out, and we couldn't remove the rocker cover with an injector still in place, so we decided to sacrifice the rocker cover to get a better look. Once the rocker cover was out of the way, we were able to keep turning anti-clockwise until a 'threaded' injector came out in pieces. After a little head scratching (Lack of knowledge, but I do love a learning curve), we realized there was still more injector inside the cylinder head, so screwing the injector back together, spraying carb cleaner and gently persuading a clockwise turn, the whole injector came free.


Basically we weren't able to get enough clockwise turning with the rocker cover in place, and when turning anti-clockwise, the injector was just unscrewing but not loosening the carbon build up.

So, just waiting for the spare parts, and the putting back together can begin.

Thanks to those who shared there advice.

[knobby1]

As promised, here's the update.

The injector was refusing to come out, and we couldn't remove the rocker cover with an injector still in place, so we decided to sacrifice the rocker cover to get a better look. Once the rocker cover was out of the way, we were able to keep turning anti-clockwise until a 'threaded' injector came out in pieces. After a little head scratching (Lack of knowledge, but I do love a learning curve), we realized there was still more injector inside the cylinder head, so screwing the injector back together, spraying carb cleaner and gently persuading a clockwise turn, the whole injector came free.


Basically we weren't able to get enough clockwise turning with the rocker cover in place, and when turning anti-clockwise, the injector was just unscrewing but not loosening the carbon build up.

So, just waiting for the spare parts, and the putting back together can begin.

Thanks to those who shared there advice.

Make sure all the old injectors go back in the same cylinders they came out of...and then when the "new" one is fitted, you need to "code it in" and then do the learns.

Lord Knobrot

[Tiny Tim 610]

As promised, here's the update.

The injector was refusing to come out, and we couldn't remove the rocker cover with an injector still in place, so we decided to sacrifice the rocker cover to get a better look. Once the rocker cover was out of the way, we were able to keep turning anti-clockwise until a 'threaded' injector came out in pieces. After a little head scratching (Lack of knowledge, but I do love a learning curve), we realized there was still more injector inside the cylinder head, so screwing the injector back together, spraying carb cleaner and gently persuading a clockwise turn, the whole injector came free.


Basically we weren't able to get enough clockwise turning with the rocker cover in place, and when turning anti-clockwise, the injector was just unscrewing but not loosening the carbon build up.

So, just waiting for the spare parts, and the putting back together can begin.

Thanks to those who shared there advice.

Make sure all the old injectors go back in the same cylinders they came out of...and then when the "new" one is fitted, you need to "code it in" and then do the learns.

Lord Knobrot

Thanks for that info Lord Knobrot. I'll be knocking on your door for advice

[Punto443]

id have just taken the clamp off, put a towel over the injector and cranked the engine, probably would have spat it out with the engine compression.

bit late now though? like being asked if your alright after a kick in the stones

[knobby1]

I'll be knocking on you door for advice

LOL...I doubt that very much...unless you can swim rather well...!

Lord Knobrot