tricks to remove stuck injectors ?

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Originally Posted by 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.

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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

Quote:

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Originally Posted by Bulletman

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

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https://uploads.tapatalk-cdn.com/202...9997bab6fa.jpg

https://uploads.tapatalk-cdn.com/202...249729c88b.jpg

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Apologies for the photos of my pc

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.

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

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

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Originally Posted by 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

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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?

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Originally Posted by DiscoJeffster

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?

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Attachment 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

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Originally Posted by 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.

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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.

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Originally Posted by RANDLOVER

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.

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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.