Posted by trucker40 on January 29, 2009 at 19:43:43 from (69.149.165.81):
In Reply to: Engine miss posted by rrlund on January 29, 2009 at 11:33:27:
Misses under a pull then smooths out.Well its probably not a valve because if it was a burned valve it would miss all the time.Might sound better without a pull on it,but its not going to hit without compression.Cracked intake or blown intake gasket might make it miss worse pulling.Distributor cap,wire,or distributor shaft being loose,low compression on that cylinder,are all things it could be.You didnt say what kind of tractor it is.If its overhead valves it would miss bad with a broken valve spring.Need to do a compression check if its not cap or wires.My H was doing that but it was worn out and had those resistor wires on it when I got it.Changing wires helped that but it was so worn out it would foul plugs out.I would try to rig up some way to check how its firing like a spark plug clamped on it somewhere that you can hook the wires to one at a time when it does it and see if its not a wire,or cap and which one.
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