VictorW
Veteran Member
CK30hst, 450 hours. New oil, air, fuel, and hydro filters along with all fluids at 420 hours, (400 hour service). Started and ran perfectly for the 30 hours since service. Using same fuel with additive as I've always used. No repairs other than new hydro cooler.
Normal Winter starting for the past six years is cycle glow plugs once or twice, depending on the temp, and it starts with a few seconds of cranking and continues to run. Once in a while, you'll hear that not all three cylinders are firing but smooths out in about five seconds.
The last "two" times starting and the first it's ever had this problem, temps are 15 to 25'F, cycle glow plugs, crank, and it fires instantly, smooth with all cylinders firing, but dies after two seconds as if it ran out of fuel or you turned it off. Try starting again the same way and an instant fire with a run for two seconds. Go for the third start the same way, it starts and continues to run perfectly. Give it some warm up time and put it to work. It doesn't miss a beat and will run perfectly until you turn it off. If you do turn it off and restart after a few minutes, there isn't a problem. The problem has been identical both times.
Any ideas why the engine has this strange start problem? It's supposed to be @40'F this weekend and I will see if the temp has anything to do with it but it has never done this before. Even at -4'F, it has started fine. The throttle does respond as it always has so I assume my injector pump and rack are working properly. It runs fine at any throttle setting or rpm. Some members have mentioned changing their precharge pump when they experienced fuel problems. Would this be a possibility or not being that it runs fine once it starts? I was also thinking it might be the ignition switch which has caused many strange problems for members. When it fires, I let off the key for the run position. The next time I start it when cold, I will watch the shut off seleniod when I crank it and let off for run.
Any ideas or help is greatly appreciated.
Vic
Normal Winter starting for the past six years is cycle glow plugs once or twice, depending on the temp, and it starts with a few seconds of cranking and continues to run. Once in a while, you'll hear that not all three cylinders are firing but smooths out in about five seconds.
The last "two" times starting and the first it's ever had this problem, temps are 15 to 25'F, cycle glow plugs, crank, and it fires instantly, smooth with all cylinders firing, but dies after two seconds as if it ran out of fuel or you turned it off. Try starting again the same way and an instant fire with a run for two seconds. Go for the third start the same way, it starts and continues to run perfectly. Give it some warm up time and put it to work. It doesn't miss a beat and will run perfectly until you turn it off. If you do turn it off and restart after a few minutes, there isn't a problem. The problem has been identical both times.
Any ideas why the engine has this strange start problem? It's supposed to be @40'F this weekend and I will see if the temp has anything to do with it but it has never done this before. Even at -4'F, it has started fine. The throttle does respond as it always has so I assume my injector pump and rack are working properly. It runs fine at any throttle setting or rpm. Some members have mentioned changing their precharge pump when they experienced fuel problems. Would this be a possibility or not being that it runs fine once it starts? I was also thinking it might be the ignition switch which has caused many strange problems for members. When it fires, I let off the key for the run position. The next time I start it when cold, I will watch the shut off seleniod when I crank it and let off for run.
Any ideas or help is greatly appreciated.
Vic