Search results

Nope. Won't know until next season when I tear it down. I am betting on a burned exhaust valve. I have driven it all over the ranch here, routinely take it up to elevation on some of the roughest back country trails you ever saw. Does a commendable job at 75% power. Fuel mileage is awful...

Engine runs pretty darn good on 3.... just lacks some power and sounds like a Harley at idle. I was concerned about compression, as #1 showed only 75lbs. But then we checked #2 and it showed only about 60lbs. I lost faith in the gauge at that point, as I think 90lbs is normally considered...

This is interesting. Neighbor that is pretty good mechanic said same thing. We swapped plugs between 1 & 2 and the misfire stayed on #1. But still may pick up a new set of plugs. Any reason you suggest swapping 1 & 4?

Thanks for the forum, already got some good advice on an M274A mule here. Any help with this old Willys would be appreciated. Flat top four, think it is a 1952 or there about. This engine runs about as well as one can, with a dead miss on #1. Pulled the plug, not fouled or wet. Firing...