KG4PAM wrote:Hi- I am having trouble starting the 4JG2 I am swapping into a Trooper. The engine is currently sitting on a pallet in my garage. I have loosened the lines at the injectors and cranked the engine over until fuel seeped out. I still cannot get the engine to run. I have power to the shutoff solenoid (obviously, or I wouldn't get fuel at the injector union). I can get the engine to fire if I spray a quick whiff of starting fluid. I have tried running the glow plugs for ~30 seconds, but it still wont start. Any ideas? I have tried everything I know to try with my limited diesel experience. The procedure I have described worked just fine with the 4JB1 I installed in my Jeep. I have read that the 4JG2 is slightly more finicky due to the indirect injection. I am beginning to wonder if the injectors may be completely stopped up- which would explain why I have fuel to the them, but no beans when trying to start. I have yet to remove one to see what it looks like.
Thanks for any help you can provide!
KG4PAM wrote:I am getting fuel to the pump by using a gravity feed container sitting on top of the engine. I have another container under the bypass to catch return fuel. It does seem like there is an excessive amount of fuel coming out of the return when cranking- when i 'bench tested' by 4JB1, the return didn't flow that much. On this engine, there is a very steady stream coming out of the return- almost like the fuel is just running straight through the injection pump and out the bypass.
What is the best way to clean the injectors, assuming that is the issue (seems most likely to me)? Can I just remove them from the head and soak in Marvel Mystery Oil or kerosene? This has to be what the issue is- it will run for a second or two with a bit of starting fluid, then die. I obviously don't want to try much starting fluid very often, but at least it helps troubleshoot the issue.
KG4PAM wrote:(aluminum gasket between injector and "leak off pipe")