fearofweapons Posted February 14, 2023 Share Posted February 14, 2023 Hello! I recently removed and cleaned all four injectors from my 200TDi Defender engine. I've put it back together and it started! So I already feel I'm winning 😉 When reassembling I tightened up the retaining plate/fork/thing on the stud that holds the injector in, but not too tight. Is there a torque setting for this or is it just 'tight'? I don't want to go too far and snap the stud.... Quote Link to comment Share on other sites More sharing options...
western Posted February 14, 2023 Share Posted February 14, 2023 Injector clamp to stud to cylinder head is 8Nm & clamp nut torque is 20Nm from Defender workshop manual. Quote Link to comment Share on other sites More sharing options...
fearofweapons Posted February 14, 2023 Author Share Posted February 14, 2023 Outstanding - many thanks Western 🙂 8 and 20 is not very much - good job I didn't go for the tighten the thing with a long handled spanner. I'll get the Torque wrench on them later and check it's tight enough / not too tight. 😉 1 Quote Link to comment Share on other sites More sharing options...
miketomcat Posted February 15, 2023 Share Posted February 15, 2023 I had to tighten two of mine down a fair bit more to get them to seal. No idea of torque as I just kept nipping till compression/diesel stopped getting out. Mike Quote Link to comment Share on other sites More sharing options...
monkie Posted February 15, 2023 Share Posted February 15, 2023 Shine a light into the hole in the head to check there is no dirt, soot or old copper washer in there that might prevent a good seating of the injector. Make sure the injector is clean and has a new copper washer fitted. Refit the injector making sure the washer is in place correctly, fit the clamp, making sure the threads on the stud are clean and then tighten carefully to the correct torque. Quote Link to comment Share on other sites More sharing options...
TSD Posted February 15, 2023 Share Posted February 15, 2023 There's quite a variation in aftermarket injector washers I've seen for tdis. Some slightly thicker solid ones probably require a bit more clamping force before they deform and seal. Used ones probably need annealing too. But like Mike despite careful prep, I've sometimes needed a couple of extra nips to get a seal. Old engines, used heads etc. Quote Link to comment Share on other sites More sharing options...
Nonimouse Posted February 15, 2023 Share Posted February 15, 2023 Err 4261 if I recall correctly When I fettid my hybrid injectors, I got all flustered when I had a sealing issue, but I did a 'Mike' and all was fine Quote Link to comment Share on other sites More sharing options...
Peaklander Posted February 15, 2023 Share Posted February 15, 2023 I wonder if new injector washers should be annealed as a matter of course, just in case they have been on a shelf somewhere for ages? I don't know how long 'ages' is though. Quote Link to comment Share on other sites More sharing options...
western Posted February 15, 2023 Share Posted February 15, 2023 Also make sure the new injector washers are actually copper [non magnetic] & NOT copper plated steel. 2 Quote Link to comment Share on other sites More sharing options...
hurbie Posted February 15, 2023 Share Posted February 15, 2023 6 hours ago, Peaklander said: I wonder if new injector washers should be annealed as a matter of course, just in case they have been on a shelf somewhere for ages? I don't know how long 'ages' is though. "pure" copper doesn't age harden , so no need to anneal the washers ... i think the quality of the washers has more impact on how they perform .. (for this reason i use original landrover washers for the injectors (and so far they still seal)) Quote Link to comment Share on other sites More sharing options...
Stellaghost Posted February 15, 2023 Share Posted February 15, 2023 6 minutes ago, hurbie said: "pure" copper doesn't age harden , so no need to anneal the washers ... i think the quality of the washers has more impact on how they perform .. (for this reason i use original landrover washers for the injectors (and so far they still seal)) It does'nt age harden but it does work harden, compressing the copper washer every time it is tightened up is work hardening, annealing the washer will soften it to allow it to compress easier again regards Stephen 1 Quote Link to comment Share on other sites More sharing options...
hurbie Posted February 15, 2023 Share Posted February 15, 2023 45 minutes ago, Stellaghost said: It does'nt age harden but it does work harden, compressing the copper washer every time it is tightened up is work hardening, annealing the washer will soften it to allow it to compress easier again regards Stephen yep , that's the only thing copper does ...work harden .. the "original" injector seals have a small ridge pressed in to the washer , this flattens when torqued. so no sence in trying to anneal these ... Quote Link to comment Share on other sites More sharing options...
Nonimouse Posted February 20, 2023 Share Posted February 20, 2023 I just buy washers form my diesel injection specialist (who sadly is about to close), with the compression ridge Quote Link to comment Share on other sites More sharing options...
Arjan Posted February 21, 2023 Share Posted February 21, 2023 Are 2.5 N/A injectors and 200 Tdi injectors swoppable ? Quote Link to comment Share on other sites More sharing options...
Nonimouse Posted February 21, 2023 Share Posted February 21, 2023 37 minutes ago, Arjan said: Are 2.5 N/A injectors and 200 Tdi injectors swoppable ? I honsetly don't know. I don't think so, because 200 injectors are two stage Quote Link to comment Share on other sites More sharing options...
Retroanaconda Posted February 21, 2023 Share Posted February 21, 2023 They’re very different. Quote Link to comment Share on other sites More sharing options...
monkie Posted February 21, 2023 Share Posted February 21, 2023 1 hour ago, Arjan said: Are 2.5 N/A injectors and 200 Tdi injectors swoppable ? No, they are not. The pre-Tdi engines are indirect injection so have the stubby, smally injectors made by CAV. The Tdi engines are direct injection so have the longer, thinner injectors made by Bosch. Quote Link to comment Share on other sites More sharing options...
Arjan Posted February 21, 2023 Share Posted February 21, 2023 Too bad... Friend just received several 2.5 N/A ones.... Quote Link to comment Share on other sites More sharing options...
western Posted February 21, 2023 Share Posted February 21, 2023 2 hours ago, Arjan said: Are 2.5 N/A injectors and 200 Tdi injectors swoppable ? No, n/a is indirect Lucas CAV & 200Tdi is all direct injection Bosch. The Older injectors are much bigger. Quote Link to comment Share on other sites More sharing options...
Arjan Posted February 21, 2023 Share Posted February 21, 2023 Thank You ! Quote Link to comment Share on other sites More sharing options...
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