Sirocco Posted November 2, 2015 Share Posted November 2, 2015 Morning guys, I'm just after a few opinions. Pulled my injectors (300tdi) from the 90 yesterday and got them tested this morning at a local diesel specialist. No issues with the vehicle really, it does smoke on start up and full load at high speed, not much but it is there (probably not even the injectors). Power seems ok, Its on 159,000 miles so I thought I would get them checked. The pressures are a little down but nothing significant and the pattern looks good. The guy said they were fine. When I quizzed him on pop pressure, he said they couldn't test that. So do I: A) Clean them up myself and drop them back in with new washers. B) pay the $140 to get them ultrasonic cleaned and put them back in with new washers. C) pay $640 for a set of 4 from paddocks and get them sent over (to Australia). cheaper than a rebuild to. D) something else I might not have thought of. Thoughts? G Quote Link to comment Share on other sites More sharing options...
Boydie Posted November 2, 2015 Share Posted November 2, 2015 Option B. or if you want them to be 100% option C. Don't even try to service them yourself, the slightest perspiration on your finger tips can damage the surface of the needle, it is that finely honed, the finish is in micro's and you won't have the necessary equipment to test the hydraulic pressures being discharged, the volume if liquid and the exact spray pattern. They are possibly the most technical components in your engine along with the fuel injection pump. Leave servicing them to Bosche injector experts and ultrasonic is a good method of cleaning them. Quote Link to comment Share on other sites More sharing options...
Sirocco Posted November 2, 2015 Author Share Posted November 2, 2015 Option B. or if you want them to be 100% option C. Don't even try to service them yourself, the slightest perspiration on your finger tips can damage the surface of the needle, it is that finely honed, the finish is in micro's and you won't have the necessary equipment to test the hydraulic pressures being discharged, the volume if liquid and the exact spray pattern. They are possibly the most technical components in your engine along with the fuel injection pump. Leave servicing them to Bosche injector experts and ultrasonic is a good method of cleaning them. Thanks Boydie, I wasn't suggesting servicing them myself, just giving the outside a clean and dropping them back in. Thanks for the info though. So how important is pop pressure? and how long can injectors last? Am I going to be buying new ones in another 50,000miles? G Quote Link to comment Share on other sites More sharing options...
Boydie Posted November 2, 2015 Share Posted November 2, 2015 I installed a new set of genuine Bosch injectors when I rebuilt my engine, they have now done well over 380,000 kilometers, I had them ultrasonically cleaned and tested at around 200,000 and they were perfect. You can expect a set to last you well into 500,000 if you regularly replace your fuel filters and have them serviced every 250,000 Quote Link to comment Share on other sites More sharing options...
Tanuki Posted November 2, 2015 Share Posted November 2, 2015 Find a local Bosch injection dealer and see if they have an exchange program? [in previous times I did a lot of stuff with Bosch K-Jetronic on Ford V6 petrol engines; the local Bosch dealer offered an exchange program for injectors which was at least 25% cheaper than any of the other clean/rebuild services advertised in the usual 'performance car' magazines]. Quote Link to comment Share on other sites More sharing options...
Boydie Posted November 3, 2015 Share Posted November 3, 2015 A fair call, however my local Bosch agent does a ultrasonic clean and report on all 4 injectors for AUD$120 and that's less than the cost of 1 new injector Quote Link to comment Share on other sites More sharing options...
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