tricks to remove stuck injectors ?

[Bulletman]

Gday All

What tricks or otherwise have you used to remove stuck injectors.. i have managed to get 3 out easily , 1 not so , but i have 2 stuck and dont seem to be moving..

Cheers Bulletman

[DiscoJeffster]

Gday All

What tricks or otherwise have you used to remove stuck injectors.. i have managed to get 3 out easily , 1 not so , but i have 2 stuck and dont seem to be moving..

Cheers Bulletman

Slide hammer and smash the hell out of it. Mine took five minutes of belting. I bought super cheap slide hammer kit.

I used an old injector pipe and welded to the slide hammer attachment.

[Bulletman]

Slide hammer and smash the hell out of it. Mine took five minutes of belting. I bought super cheap slide hammer kit.

I used an old injector pipe and welded to the slide hammer attachment.

Mmm so does the electical connector come off the top of the injector somehow... ?

Cheers Bulletman

[DiscoJeffster]

Mmm so does the electical connector come off the top of the injector somehow... ?

Cheers Bulletman

???
I pulled it from the high pressure fuel connector.

[DiscoJeffster]

???
I pulled it from the high pressure fuel connector.

But the 3L you’re pulling from the top, not the side.
(Yes, I can’t weld, but it held).

https://uploads.tapatalk-cdn.com/20230706/479b26741886ac9330f531b9a7f0f8b2.jpg

[Bulletman]

The D3 injectors connect on the side not the top like the 3L.

Cheers Bulletman

[DiscoJeffster]

The D3 injectors connect on the side not the top like the 3L.

Cheers Bulletman

It’ll still a slide hammer job, just has a different adapter. Look up the manual.

[AK83]

forget brute force! Use heat.

Had to on the ol mans Pug a while ago.
I set the car hanging from the rafters via a stuck injector, and until heat was provided, injector wasn't coming off.

Wheels weren't off the ground, but also not far off it tho. No way using slide hammer would have given as much force as the cars weight.

If you can get a heat gun onto it, IIRC took about 5 or so mins at max setting, and slowly the car eased itself down from its 'Ned Kelly position'

[Graeme]

My brother's 3.6 TDV8 had a stuck injector, stuck because it had been leaking for quite some time then resealed itself with carbon. The LR tool for those injectors is a device that jack's up the injector by the retaining plate using 2 bolts so he made his own version. 6 hours later the injector was finally out.

[PerthDisco]

These are some of the best DIY mechanical tips I’ve heard in my life.

The miracle seems that Christian of LR Time got all 6 out by hand in an 05 model without manufacturing a tool.

I’d take his advice though and do the glow plugs with the head off as that would be horrific getting stuck with broken off ones trying to replace them.

[Bulletman]

My brother's 3.6 TDV8 had a stuck injector, stuck because it had been leaking for quite some time then resealed itself with carbon. The LR tool for those injectors is a device that jack's up the injector by the retaining plate using 2 bolts so he made his own version. 6 hours later the injector was finally out.

From what i have read the 2.7 and the 3.6 have the same style injector where the fuel is feed into the side not the top so the slide hammer method is likely to cause damage to the injector or the fitting which the line connects too.

I was looking at that plate last night and wondering if it strong enough to jack with.

Cheers Bulletman

[DiscoJeffster]

From what i have read the 2.7 and the 3.6 have the same style injector where the fuel is feed into the side not the top so the slide hammer method is likely to cause damage to the injector or the fitting which the line connects too.

I was looking at that plate last night and wondering if it strong enough to jack with.

Cheers Bulletman

https://uploads.tapatalk-cdn.com/20230707/ac270642bb309137c74aec9997bab6fa.jpg

[DiscoJeffster]

https://uploads.tapatalk-cdn.com/20230707/dd5d22161c1b48f782f127249729c88b.jpg

https://uploads.tapatalk-cdn.com/20230707/bac7ff3b8d29c04104a250075391d2c3.jpg

Apologies for the photos of my pc

[Airmech953]

I bought the LR special tool and it broke, the manufacturer replaced it free of charge so I guess that it I wasn't the first person to break one. It's too flimsy to remove a stuck injector. I tried soaking the injector with penetrating oil over a few days and it still didn't move. Luckily this is on a spare engine that I use to experiment on. Next time I'll try getting the injector hot before I load the tool up.

[ChookD2]

https://www.youtube.com/watch?v=XwZOTf8vYhE

[Bulletman]

Well managed to get them out with heat but wow you have to be very patient and careful as the inlet manifolds burn very easily..

That back injector on the passenger is an absolute bastard .. i can see why everything is a body off on these cars ..

Only took 2 1/2 hrs of sheer frustration and if you have any skin left from the previous jobs you wont after this

Cheers Bulletman

[DiscoJeffster]

Well managed to get them out with heat but wow you have to be very patient and careful as the inlet manifolds burn very easily..

That back injector on the passenger is an absolute bastard .. i can see why everything is a body off on these cars ..

Only took 2 1/2 hrs of sheer frustration and if you have any skin left from the previous jobs you wont after this

Cheers Bulletman

What did you use to heat it and keep it from spreading? Also, interested in how much heat went to the top plastic connector? Is the injector reusable after heating to remove?

[Bulletman]

What did you use to heat it and keep it from spreading? Also, interested in how much heat went to the top plastic connector? Is the injector reusable after heating to remove?

186156

Yes the million $$ question is are they reusable.. as for the electrical connector i held 1 finger on the connector to ensure i could tell if it was getting hot and i would say no hotter than engine temp before i stopped... have i done damage inside time will tell..
Im in a dammed if i did dammed if i didnt situation as i need to get the inlet manifold off regardless so that was the only way i could see it happening..

Im talking 2 mins max per time with the flame on the injector base any more im guessing you would burn thru the manifold anyway..

Cheers Bulletman

[RANDLOVER]

I bought the LR special tool and it broke, the manufacturer replaced it free of charge so I guess that it I wasn't the first person to break one. It's too flimsy to remove a stuck injector. I tried soaking the injector with penetrating oil over a few days and it still didn't move. Luckily this is on a spare engine that I use to experiment on. Next time I'll try getting the injector hot before I load the tool up.

I don't think the special tool is that good or special as my mechanic mentioned he made up his own. IIRC he also said that years ago injectors were removed and serviced every 100 000 km or so, which doesn't happen now, so I wonder if that is the cause of a lot of stuck injectors, and he said the o-rings on D3's aren't a great seal and are more of an anti-vibration device.

[DiscoJeffster]

I don't think the special tool is that good or special as my mechanic mentioned he made up his own. IIRC he also said that years ago injectors were removed and serviced every 100 000 km or so, which doesn't happen now, so I wonder if that is the cause of a lot of stuck injectors, and he said the o-rings on D3's aren't a great seal and are more of an anti-vibration device.

Um. The issue is the copper washer letting carbon up the injector shaft and coking it in place. It has nothing to do with o-rings.

[RANDLOVER]

Um. The issue is the copper washer letting carbon up the injector shaft and coking it in place. It has nothing to do with o-rings.

I must've misunderstood him and thought he was talking about debris falling into the injector ports.

[josh.huber]

I must've misunderstood him and thought he was talking about debris falling into the injector ports.

He's right, it's both, not so much derbis but water, engines with better top seals are easier to get injectors out of.

[Bulletman]

Well from what i seen none of my injectors had orings on them.. there is a groove about half way down the injector body but no orings present..

Mine seemed more like they were locked from water rather than carbon but thats just based on how they looked upon removal .. especially seeing 3 came out very easy and 1 with not much more then some sideways twisting..

Cheers Bulletman

[loanrangie]

Well from what i seen none of my injectors had orings on them.. there is a groove about half way down the injector body but no orings present..

Mine seemed more like they were locked from water rather than carbon but thats just based on how they looked upon removal .. especially seeing 3 came out very easy and 1 with not much more then some sideways twisting..

Cheers Bulletman

Yep no o-rings although as you said there is a groove which suggests that they were made to take them, i had no trouble getting mine out.
Just a quick twist and they lifted out.