I have recently fitted a recon 2H engine to my old HJ47. I personally set the timing gears so am confident that they are correct but when I started the engine, black smoke with a smell of unburned diesel emerged. I made a "spill tube" and found that the injector timing was actually occurring at 11 deg BTDC (12HT timing) not at 18 deg BTDC (2H timing). So, that is 7 deg late!! That would explain the unburned diesel??? I have now removed the inj pump and intend to advance the gear by one tooth. Given that the gear has 64 teeth, that means 360/64 equals 5.6 deg. While the pump is out, I will loosen the back 2 nuts on the inj pump adjustment flange. These are very difficult to get to once installed. This will enable me to fine tune the timing once the pump is re-installed.
I think all this trouble has occurred because the new engine was a 12HT unit?? Not sure?? Are the timing gears different? ie 2H vs 12HT.
Any comments / advice on the above?
Thanks for your help.
Bill W.
I think all this trouble has occurred because the new engine was a 12HT unit?? Not sure?? Are the timing gears different? ie 2H vs 12HT.
Any comments / advice on the above?
Thanks for your help.
Bill W.