tweetyduck Posted November 26, 2020 Share Posted November 26, 2020 I got some DTP nozzles. I don't have access to a pop tester (yet). We are working on that. I mechanically minded friend in South Africa is going to buy one and i will pay half. Which bits/parts set the pressure in this injector? There doesn't seem to be anything in the 300Tdi holder to set up. Normally its a shim i think but they don't have one if i recall. There's two pressures listed in the book. 2940PSI Initial and 4120PSI Secondary. I've not idea what the two figures mean. Don't they normally open and spray at one pressure so which one is it? Seems strange there's two.... If you can point me at any info as i've googled and there's some generic bench strip, cleaning and rebuild but i'd like to know what i'm doing in a little more depth. I'd also like to test it properly. The nozzles are like £17 so its worth buying a pop tester if you only do one injector ! Quote Link to comment Share on other sites More sharing options...
tweetyduck Posted November 26, 2020 Author Share Posted November 26, 2020 i think i've got to an answer on the first bit. The Initial pressure is the one the POP tester will show and you need a super expensive electronic one to test the other figure. Still wondering how you adjust anything !? Quote Link to comment Share on other sites More sharing options...
Sigi_H Posted November 27, 2020 Share Posted November 27, 2020 (edited) As far as I know, you only adjust the first stage with shims. Second stage results from that and you can't influence it. Injectors from 200 Tdi adjustment (german) Edited November 27, 2020 by Sigi_H Quote Link to comment Share on other sites More sharing options...
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