santalars Posted January 27, 2010 Share Posted January 27, 2010 The 300tdi takes ages to fire up after standing over night. This problem gradually became worse. It's not the glow plugs or other electrics. I have changed the lift pump without improvement. After it started once it starts on the first turn as usual all the day, even if cold. I think that there is air getting in somewhere. There is no loss of power. Could anyone please give me a hint where to look first. It's damn cold here (-15) and I would like to spend as less time as possible outside searching for the cause. Many thanks for ideas. Quote Link to comment Share on other sites More sharing options...
jbs Posted January 27, 2010 Share Posted January 27, 2010 I once read in a mag- I think it was kev baldwin who wrote about having trouble starting his 300 TDI disco he got the advice from one of the diesel tuners he advanced his one by adjusting the fuel injection pulley through the hole in the timing case by advancing it This apparently sorted his problem out HTH John Quote Link to comment Share on other sites More sharing options...
Retroanaconda Posted January 27, 2010 Share Posted January 27, 2010 My 200Tdi does something similar when left for a few days. I believe it's fuel getting in through the drain-back lines off the injectors. If it was in the high-pressure lines I'm sure there would be a leak due to the ridiculous PSIs in the injector lines. I have to prime the fuel pump manually if I want it to start up straight away Quote Link to comment Share on other sites More sharing options...
santalars Posted January 27, 2010 Author Share Posted January 27, 2010 Thanks for the replies. Today at - 15 there was no chance of getting it started. Only after preheating the entire engine with a gas heater he fired up. Ok, I do understand that -15 might be on the tight side anyway for a diesel, but hard starting after standing for a while was a problem even at temperetures around +10 degrees. I have tried to prime the system manually, but this didn't help.So I think that the leak in the fuel delivery system is ruled out. At the moment I'm really considering that the timing might be slightly out. However, a quick check with the timing pins showed that at least the pump-flywheel timing is correct. Any other suggestions are much appreciated? Quote Link to comment Share on other sites More sharing options...
LandyLee Posted January 27, 2010 Share Posted January 27, 2010 only two faults we get in the garage with a non starting DI diesel (first thing in morning) is it loosing prime or timing very slightly out. Quote Link to comment Share on other sites More sharing options...
Andrew Chua Posted January 28, 2010 Share Posted January 28, 2010 your landie parked on flat ground? sometimes, the fuel flows back into the tank and it just won't crank. try parking head down and see. Quote Link to comment Share on other sites More sharing options...
santalars Posted January 28, 2010 Author Share Posted January 28, 2010 Many thanks It's parked on flat ground. Pre-Priming by hand didn't help, so I guess that there is only one thing left. I will check the timing accurately over the weekend. Hope this will solve it. I will give an update after it's done. Quote Link to comment Share on other sites More sharing options...
Maverik Posted January 28, 2010 Share Posted January 28, 2010 Have you changed your fuel filter recently? Quote Link to comment Share on other sites More sharing options...
Retroanaconda Posted February 4, 2010 Share Posted February 4, 2010 Did you get this fixed in the end? Solved mine today by tightening the banjo unions on the injector leak-back pipes, three out of four were loose and turned by hand! Quote Link to comment Share on other sites More sharing options...
defender dave Posted February 4, 2010 Share Posted February 4, 2010 hi i had the same happen to me and found it to be the fuel return pipes that run from each injector to the next one must have had a pin hole in and the fuel was draining back try changing them only a couple of £ Quote Link to comment Share on other sites More sharing options...
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