tedsmart Posted May 26, 2007 Share Posted May 26, 2007 Hi, after taking the landy to have a service for the log book & warranty, I had a talk with the mechanic who was very good as he'd fixed a loose A/C tensioner wheel that was rattling, and he has suggested having the injectors cleaned and a diesel tune up which includes re-setting the tappits and the turbo, he says that he can get a fair bit more performance out of the 300Tdi. Has anyone any knowledge of this, ie is it worth the 300 odd dollars that he said it would take to do it and is the performance better or is it a case of the emperors new clothes!!! Quote Link to comment Share on other sites More sharing options...
Ex Member Posted May 26, 2007 Share Posted May 26, 2007 IMO, these type of injectors can not be cleaned. He could increase the power by adjusting the injector pump, as it is easy to do, however, in my opinion an EGT gauge should be fitted to make sure that unsafe levels are not reached. There is nothing to do with the turbo other than increasing the boost and unless it is out, it should not be increased on a 300TDI. Quote Link to comment Share on other sites More sharing options...
JST Posted May 27, 2007 Share Posted May 27, 2007 alternatively read the tech archive on how to do it then do it yourself. Quote Link to comment Share on other sites More sharing options...
tedsmart Posted May 27, 2007 Author Share Posted May 27, 2007 alternatively read the tech archive on how to do it then do it yourself. Where abouts I can't find it! Quote Link to comment Share on other sites More sharing options...
JST Posted May 27, 2007 Share Posted May 27, 2007 just looked i cant see it immediately am sure it is in there somewhere though, hopefully Tony will be along to point us in the right direction. Quote Link to comment Share on other sites More sharing options...
JimC Posted May 27, 2007 Share Posted May 27, 2007 Yeah, I bet all that guy would do is adjust the valves and turn up the fuel. A job worth about a hundred bucks - for the valve adjustment. Quote Link to comment Share on other sites More sharing options...
Ex Member Posted May 27, 2007 Share Posted May 27, 2007 Where abouts I can't find it! http://forums.lr4x4.com/index.php?showtopic=31 Have fun Quote Link to comment Share on other sites More sharing options...
tedsmart Posted May 29, 2007 Author Share Posted May 29, 2007 http://forums.lr4x4.com/index.php?showtopic=31Have fun Thanks very much for that! PS I do know how to spell diesel honest Quote Link to comment Share on other sites More sharing options...
Ex Member Posted May 29, 2007 Share Posted May 29, 2007 Thanks very much for that! PS I do know how to spell diesel honest Nooing ow two spel s noot kneededd round heir. Quote Link to comment Share on other sites More sharing options...
AlliSport Andy Posted May 31, 2007 Share Posted May 31, 2007 As stated above, be careful of the EGT's when tuning, particularly without the use of an uprated intercooler. Quote Link to comment Share on other sites More sharing options...
white90 Posted May 31, 2007 Share Posted May 31, 2007 fit an EGT gauge (properly) first then the worlds your lobster (or some other sea creature) tech archive has some samples of EGT set ups. it is the only thing that will let you see what is happening with the engine pre/post adjustment Quote Link to comment Share on other sites More sharing options...
JimAttrill Posted May 31, 2007 Share Posted May 31, 2007 If you are going to tweak your pump an EGT gauge is a must have. I would have blown my engine to bits long ago without one. It is long uphills that get the EGT high, it doesn't have to be steep, just long. Maybe I have more of a problem here at 5000ft. The injectors can be adjusted to open at 200bar, and the tips can be changed. Not a job for your average car mechanic, though. Quote Link to comment Share on other sites More sharing options...
Abe Posted June 25, 2007 Share Posted June 25, 2007 Hi Ted If you want to get the performance & economy up go with New enlarged full-width intercooler (pump also needs slight adjusting) not only to get that performance but good economy - plus you find the motor runs cooler too if you can get away with it - away with the EGR & more importantlly the CAT (pipes are cheap to source) blankers for the EGR are also easy to source. small imporvements my be made by a K&N filter & even one of their induction kits together with putting on a electric fan hope the info helps happy trails Abe Quote Link to comment Share on other sites More sharing options...
tedsmart Posted June 26, 2007 Author Share Posted June 26, 2007 Hi TedIf you want to get the performance & economy up go with New enlarged full-width intercooler (pump also needs slight adjusting) not only to get that performance but good economy - plus you find the motor runs cooler too if you can get away with it - away with the EGR & more importantlly the CAT (pipes are cheap to source) blankers for the EGR are also easy to source. small imporvements my be made by a K&N filter & even one of their induction kits together with putting on a electric fan hope the info helps happy trails Abe Thanks for that! What intercooler will fit bearing in mind its got A/Conditioning, also where would I source one! in OZ? Quote Link to comment Share on other sites More sharing options...
JimAttrill Posted June 26, 2007 Share Posted June 26, 2007 "small imporvements my be made by a K&N filter & even one of their induction kits" you may get an imporvement, but your engine won't like it in the long run. Just check on the K&N threads on all the LR web sites. Quote Link to comment Share on other sites More sharing options...
Bush65 Posted June 26, 2007 Share Posted June 26, 2007 Don't fit a K&N filter. Stick with paper elements for Australia - too dusty for inferior filters. Australian 300Tdi's don't have egr, so it will already be blanked. People have increased the boost pressure a little with success, but the injection pump adjustments are where the power increase will come from. As everyone else has stated, fit an egt gauge. There are good units made in Australia from Thermoguard Some good technical info on Ian's site as well. 300Tdi injectors are 2 stage and the normal diesel shop can't service or calibrate the high pressure stage. They can clean and replace the tips and calibrate the 1st stage. Quote Link to comment Share on other sites More sharing options...
JimAttrill Posted June 26, 2007 Share Posted June 26, 2007 Back in the days when tdi's were serviced at the stealers, it was common for them to change the injectors. You see their point of view: 1) It is easy to do 2) It gets you (the customer) off their back as they can prove they have done something 3) they make a nice mark up on the parts But I have not personally met anyone who has noticed an improvement in anything on changing the injectors. I changed mine because I was offered some for cheap but took them out as they were worse than the old ones (this at 160k kms). I have since fitted them back and had the old ones adjusted to as-new spec. So now I have some on the garage shelf. They have come in handy to substitute for suspect ones. I wonder how long they really do last? When we recondition an engine we change lots of parts and often have the injector pump reconditioned, but leave the injectors alone. Quote Link to comment Share on other sites More sharing options...
BogMonster Posted June 26, 2007 Share Posted June 26, 2007 I changed the injectors in my old old 90 when it was about 10 yrs old and can't say I noticed any difference at all. I did it because I had been told somewhere that the useful life is about 60k miles but I know one vehicle here which has 170k miles and is still on the original injectors, it doesn't run that well but the rest of the vehicle is knackered anyway (for 170k miles here read about 400k miles in terms of wear and tear in most parts of the world) Quote Link to comment Share on other sites More sharing options...
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