My S470D (Buck) is refusing to start, and I think that I have tried all my usual tricks and am looking for suggestions.
It ran just fine 3 weeks ago, when I used it to plow after a snow for an hour or two.
We got a big storm a couple of days ago, and it would not run. It started like normal, but never rev'd up the RPM after getting going, just puttered along for maybe 1 min and then died. Fuel was good (liquid, not jelling), and I was getting white smoke so I suspect there was some fuel coming in. Charging the batt and warming the engine and IP with a heater did not help, it just would not start. So I did some more investigating and the fuel filter looked pretty dirty. So today I got a new fuel filter. cleaned out the filter bowl, made sure fuel was flowing freely from the tank to the filter bowl, and put in the new filter. I bled the fuel line at the IP, got some air out and then a solid fuel stream. Tried starting again with the same results. It ran for maybe 20 sec at slow speed then died.
I am trying to figure this one out. There were a couple things I had thought of:
1. I didn't bleed the fuel lines enough. I was getting a solid stream of fuel at the IP bleeder, but maybe there is still air in there. I was thinking of putting some clear vinyl line in there temporarily to check.
2. Second thing I had thought of was perhaps the governor broke, and even though I pull back the throttle level, the engine isn't being set for more fuel. Any easy way to check this?
3. One other less likely thing is perhaps glow plugs. It was ~ 40F when I was trying to start it, warm enough that it should have caught even without the GPs working. But who know.
These engines are pretty simple, but I can't really think of much more that could be going wrong here. I suppose I could check compression but given that it was running fine 3 weeks ago seem unlikely that it suddenly lost compression just sitting.
Any other thoughts on what might be the problem here? Things to check?
TIA
It ran just fine 3 weeks ago, when I used it to plow after a snow for an hour or two.
We got a big storm a couple of days ago, and it would not run. It started like normal, but never rev'd up the RPM after getting going, just puttered along for maybe 1 min and then died. Fuel was good (liquid, not jelling), and I was getting white smoke so I suspect there was some fuel coming in. Charging the batt and warming the engine and IP with a heater did not help, it just would not start. So I did some more investigating and the fuel filter looked pretty dirty. So today I got a new fuel filter. cleaned out the filter bowl, made sure fuel was flowing freely from the tank to the filter bowl, and put in the new filter. I bled the fuel line at the IP, got some air out and then a solid fuel stream. Tried starting again with the same results. It ran for maybe 20 sec at slow speed then died.
I am trying to figure this one out. There were a couple things I had thought of:
1. I didn't bleed the fuel lines enough. I was getting a solid stream of fuel at the IP bleeder, but maybe there is still air in there. I was thinking of putting some clear vinyl line in there temporarily to check.
2. Second thing I had thought of was perhaps the governor broke, and even though I pull back the throttle level, the engine isn't being set for more fuel. Any easy way to check this?
3. One other less likely thing is perhaps glow plugs. It was ~ 40F when I was trying to start it, warm enough that it should have caught even without the GPs working. But who know.
These engines are pretty simple, but I can't really think of much more that could be going wrong here. I suppose I could check compression but given that it was running fine 3 weeks ago seem unlikely that it suddenly lost compression just sitting.
Any other thoughts on what might be the problem here? Things to check?
TIA
