Wizard2003

Active Member
What's the chances that injectors from an engine with head gasket failure are still good?

At least one of mine have failed, maybe 2. And I've got my hands on a full set from a failed engine. Guy swears the injectors were good and not that old.
 
What's the chances that injectors from an engine with head gasket failure are still good?

At least one of mine have failed, maybe 2. And I've got my hands on a full set from a failed engine. Guy swears the injectors were good and not that old.

Chances are they will still be good, its the gasket thats failed not the injectors. But with all 2nd hand parts its a gamble.
 
Chances are they will still be good, its the gasket thats failed not the injectors. But with all 2nd hand parts its a gamble.
Yeah well he gives me them at a good price so I think it worth the risk. When I get round to it I'll update the post.
 
What's the chances that injectors from an engine with head gasket failure are still good?

At least one of mine have failed, maybe 2. And I've got my hands on a full set from a failed engine. Guy swears the injectors were good and not that old.
Unusual for a diesel to have head gasket failure, TD4
 
Unusual for a diesel to have head gasket failure, TD4
And why take the injectors out, rather than repair the vehicle, unless there were additional issues.

What's the chances that injectors from an engine with head gasket failure are still good?

At least one of mine have failed, maybe 2. And I've got my hands on a full set from a failed engine. Guy swears the injectors were good and not that old.

My injectors aren't great, having been "reconditioned", however the injector that was in cylinder 2 with a nut bouncing about in there smashing the piston and head was absolutely fine. The spray nozzle end of an injector is increasing durable, simply because it's poking into a very inhospitable place.

Generally these injectors are good to about 100k, after which they can become unpredictable in operation, or they can go on for another 100k.
For second hand, how they're stored is important. They must not be allowed to drain or dry out internally, or they are basically ruined.
 
And why take the injectors out, rather than repair the vehicle, unless there were additional issues.



My injectors aren't great, having been "reconditioned", however the injector that was in cylinder 2 with a nut bouncing about in there smashing the piston and head was absolutely fine. The spray nozzle end of an injector is increasing durable, simply because it's poking into a very inhospitable place.

Generally these injectors are good to about 100k, after which they can become unpredictable in operation, or they can go on for another 100k.
For second hand, how they're stored is important. They must not be allowed to drain or dry out internally, or they are basically ruined.
I have 155000 miles on my engine and most likely original injectors. Thanks for letting me know they have to stay "wet" I didn't know that.

Gonna do the glow plugs as well so hopefully it'll be like a new engine 😊
 
FL1 - 2005
Great so we now know, that we are dealing with an FL1 they may just need the tips cleaned, so the spray pattern is good.

Small wire brush.
RXGYrCwl.jpg
1a

Nqy5qI1l.jpg
1

Undo the end a little.
YjvFBJkl.jpg
2

bKN37FSl.jpg
3

Do the above a few times slowly so all the grime comes to the top to be cleaned off, before taking the tip and cap off.
PIo4Yuwl.jpg
4

6k3REggl.jpg
5

keep a keen eye out for any shims or pins.
CQUWK1sl.jpg
6

kMVO1VUl.jpg
7

Now the tip is off you need to get the needle out by tapping the edge into your palm of your hand or use a small magnet, the needle should slide out easy, unless it is stuck by a load of carbon.
CxXlPfYl.jpg
8

149u9GTl.jpg
9

Spray and clean the needle with some carb cleaner, let it dry on a lint free cloth or paper towel.

You can now spray out the tip with it's 5 holes for the spray pattern, use carb cleaner with the straw attached.
RX12Qful.jpg
10

2rARgRzl.jpg
11

Lubricate the needle and inside the tip with a small amount of diesel and put the needle back into the tip it should slide in and out freely without sticking.

Then replace the tip with needle back on the injector, always fit new copper washers when refitting the injector back into the car.

You could go the whole hog and clean the whole injector but it is labour intensive, and needs to be done in a clean area, there is a small ball bear which no bigger than a pin head so do not lose that if you do it's game over.
QTaqzqyl.jpg
12

XDjUmi6l.jpg
13
 
Great so we now know, that we are dealing with an FL1 they may just need the tips cleaned, so the spray pattern is good.

Small wire brush.
RXGYrCwl.jpg
1a

Nqy5qI1l.jpg
1

Undo the end a little.
YjvFBJkl.jpg
2

bKN37FSl.jpg
3

Do the above a few times slowly so all the grime comes to the top to be cleaned off, before taking the tip and cap off.
PIo4Yuwl.jpg
4

6k3REggl.jpg
5

keep a keen eye out for any shims or pins.
CQUWK1sl.jpg
6

kMVO1VUl.jpg
7

Now the tip is off you need to get the needle out by tapping the edge into your palm of your hand or use a small magnet, the needle should slide out easy, unless it is stuck by a load of carbon.
CxXlPfYl.jpg
8

149u9GTl.jpg
9

Spray and clean the needle with some carb cleaner, let it dry on a lint free cloth or paper towel.

You can now spray out the tip with it's 5 holes for the spray pattern, use carb cleaner with the straw attached.
RX12Qful.jpg
10

2rARgRzl.jpg
11

Lubricate the needle and inside the tip with a small amount of diesel and put the needle back into the tip it should slide in and out freely without sticking.

Then replace the tip with needle back on the injector, always fit new copper washers when refitting the injector back into the car.

You could go the whole hog and clean the whole injector but it is labour intensive, and needs to be done in a clean area, there is a small ball bear which no bigger than a pin head so do not lose that if you do it's game over.
QTaqzqyl.jpg
12

XDjUmi6l.jpg
13
Wow! Thanks so much Artic2 for such a detailed explanation. This will help me a lot.

Would that be ok doing 1 at a time? As in, say I do 1 a week because of time restraints. Or would it be better doing them all at once?
 
Great so we now know, that we are dealing with an FL1 they may just need the tips cleaned, so the spray pattern is good.

Small wire brush.
RXGYrCwl.jpg
1a

Nqy5qI1l.jpg
1

Undo the end a little.
YjvFBJkl.jpg
2

bKN37FSl.jpg
3

Do the above a few times slowly so all the grime comes to the top to be cleaned off, before taking the tip and cap off.
PIo4Yuwl.jpg
4

6k3REggl.jpg
5

keep a keen eye out for any shims or pins.
CQUWK1sl.jpg
6

kMVO1VUl.jpg
7

Now the tip is off you need to get the needle out by tapping the edge into your palm of your hand or use a small magnet, the needle should slide out easy, unless it is stuck by a load of carbon.
CxXlPfYl.jpg
8

149u9GTl.jpg
9

Spray and clean the needle with some carb cleaner, let it dry on a lint free cloth or paper towel.

You can now spray out the tip with it's 5 holes for the spray pattern, use carb cleaner with the straw attached.
RX12Qful.jpg
10

2rARgRzl.jpg
11

Lubricate the needle and inside the tip with a small amount of diesel and put the needle back into the tip it should slide in and out freely without sticking.

Then replace the tip with needle back on the injector, always fit new copper washers when refitting the injector back into the car.

You could go the whole hog and clean the whole injector but it is labour intensive, and needs to be done in a clean area, there is a small ball bear which no bigger than a pin head so do not lose that if you do it's game over.
QTaqzqyl.jpg
12

XDjUmi6l.jpg
13
Thanks to your very detailed instructions I got the "new" injectors taken apart and cleaned and installed very easily.

Although, I changed the glow plugs as well and the last one broke! The "nut" is just spinning and glow plug itself not moving 🤦

Gonna need to drill it out, just waiting for the kit to be delivered to make it easier.
 
Thanks to your very detailed instructions I got the "new" injectors taken apart and cleaned and installed very easily.

Although, I changed the glow plugs as well and the last one broke! The "nut" is just spinning and glow plug itself not moving 🤦

Gonna need to drill it out, just waiting for the kit to be delivered to make it easier.
Ouch that is not going tom be easy and you could cause more damage, personally it may be best to leave well alone, I think Nogde would give you more insight about the glow plug situation.

But do let us know how you get on or what you do.
 
Ouch that is not going tom be easy and you could cause more damage, personally it may be best to leave well alone, I think Nogde would give you more insight about the glow plug situation.

But do let us know how you get on or what you do.
Agreed. Leave well alone.
 
Agreed. Leave well alone.
Your advice is noted 😀 but given I got some quite well into £300+ and I'm intending to keep and restore/work on this car for as long as I possibly can. I think it's worth learning new skills. If I mess up the threads it'll cost just as much to fix so.....
 
Forgot to give an update on this.

Got this set from ebay for £29 https://www.ebay.co.uk/itm/40457393...hg2a4xmrgy&var=&widget_ver=artemis&media=COPY

Was really easy following this video


Snapped off the top of the glow plug, twisted out the electrode, and drilled out the glow plug, clean the threads and installed new one. Took about 15 mins.

Alot better than the £300-500 I was being quoted to have it done!

Hi Wizard.
Sounds like you got a good result nice to hear.
 

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