Trashistreasure
New member
- 21
- 10
- 3
- Location
- 02814
Hello all new to the site like to start with the thanks for any help I get.
recently acquired a MEP002a from a well-known acquaintance (I am his go to generator mechanic, most of my knowledge learned on the job fixing his generator as he lives off grid) it was taken out of service due to troubles with the master control switch from vibrations. I replaced master control switch and it should have been a turnkey task from there. Not to my surprise with my shit for luck it kind of started barely running lots of smoke some of which was coming back out the intake manifold along with some fuel (at this time I have the intake air heaters out waiting on replacements as they burnt out due to the preheater contacts getting stuck on from the master switch Failure). I Immediately started with the basics of cleaning fuel pump strainers and replacing fuel filters as the unit sat for about two years prior to me acquiring it, no fuel in the day tank as it was set up running from a 55 gallon drum, so I was starting from fresh clean fuel in the tank, no change. Next i removed dismantled and cleaned the injectors Detaching spinning 180° reattaching and testing before dismantling had a spray that looked more like a spray bottle squirting a stream. After cleaning in rechecking appeared to be more of a mist like I thought it should be, reinstalled tried running again still no difference. I went through a process of flow testing the injector pump to check for correct timing through the process to the best of my ability confirms that number one cylinder is closing the injector port precisely on the PC timing mark so it appears the injector pump timing is still correct from this point I believe the number one cylinder should have been in the compression stroke so I moved to the letter A timing mark and set the valves according to manual spec tried starting still no difference there is exhaust coming out the intake acting like it’s running out of Time. Again this unit had been running making power eight hours a day at an off grid property and was only taken out of service because the master control switch problem was noticed due to Heavy duty intake tube ($80 for 1 foot “Turbo Hose”) melting off the intake manifold. I am now several hundred dollars into what should have been a simple fix and very frustrated.
recently acquired a MEP002a from a well-known acquaintance (I am his go to generator mechanic, most of my knowledge learned on the job fixing his generator as he lives off grid) it was taken out of service due to troubles with the master control switch from vibrations. I replaced master control switch and it should have been a turnkey task from there. Not to my surprise with my shit for luck it kind of started barely running lots of smoke some of which was coming back out the intake manifold along with some fuel (at this time I have the intake air heaters out waiting on replacements as they burnt out due to the preheater contacts getting stuck on from the master switch Failure). I Immediately started with the basics of cleaning fuel pump strainers and replacing fuel filters as the unit sat for about two years prior to me acquiring it, no fuel in the day tank as it was set up running from a 55 gallon drum, so I was starting from fresh clean fuel in the tank, no change. Next i removed dismantled and cleaned the injectors Detaching spinning 180° reattaching and testing before dismantling had a spray that looked more like a spray bottle squirting a stream. After cleaning in rechecking appeared to be more of a mist like I thought it should be, reinstalled tried running again still no difference. I went through a process of flow testing the injector pump to check for correct timing through the process to the best of my ability confirms that number one cylinder is closing the injector port precisely on the PC timing mark so it appears the injector pump timing is still correct from this point I believe the number one cylinder should have been in the compression stroke so I moved to the letter A timing mark and set the valves according to manual spec tried starting still no difference there is exhaust coming out the intake acting like it’s running out of Time. Again this unit had been running making power eight hours a day at an off grid property and was only taken out of service because the master control switch problem was noticed due to Heavy duty intake tube ($80 for 1 foot “Turbo Hose”) melting off the intake manifold. I am now several hundred dollars into what should have been a simple fix and very frustrated.
