AlbionWood
Silver Member
Ford NH 1920 with Shibaura N844 engine, has always started and run smoothly, but just recently began running a little rough, like one cylinder is occasionally missing. Hoped it was just bad fuel or moisture in the sediment bowl, so I cleaned the bowl and drained out the fuel tank, put Seafoam in the sediment bowl and new fuel in the tank. Starts fine and idles fine, but at 1500-2000 rpm it still misses just a little. I tried loosening the injector compression nuts one by one, bleeding each line, but that didn't seem to change anything. The engine isn't misfiring on every revolution, so that operation didn't indicate whether one injector was causing the problem. My question is whether this sounds like a faulty injector, or something else?
If it's an injector problem I will try to get a new set and replace them all at once - they don't look that expensive, the tractor has been cheap to run for many years, and I can't imagine life without it now. But I'd like to know if there is more I can do to diagnose the problem.
If it's an injector problem I will try to get a new set and replace them all at once - they don't look that expensive, the tractor has been cheap to run for many years, and I can't imagine life without it now. But I'd like to know if there is more I can do to diagnose the problem.
