The front of the engine has a set of gears that drive(from the crankshaft to the cam shaft, then to the side where the hydraulic pump (If it has a live hydraulic system, meaning that it will raise the bucket with the clutch pushed in) and distributor are located The cam shaft is driven by a keyway that locates the lobes in relation to the pistons. If the system wears the gear and keyway, it can fail with backfiring as a result. Other causes can also happen in the distributor system. Do a compression check. Buy or borrow a compression tester (make sure it fits the larger size spark plugs. Open the throttle all the way open, spark plugs all out, Ignition off, and fuel turned off. Crank the engine for at least 5 fill compression cycles. and read the gauge. It should be more than 120PSI. do the remainder, and tell us what the reading is. We will go from there. JimN
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Today's Featured Article - A Farmall Story - by Ed Meadors. The year was 1978. Our young family had recently moved to rural Chesapeake, Virginia to a plot of land which would finally allow us to realize our dreams of a huge garden, critters and more lawn and pasture than we would ever use! We needed a TRACTOR; not a riding mower or tractor wannabe, but a real TRACTOR. The answer to our needs materialized in the form of a '44 Farmall A, complete with cultivators, discs, single plow, a 5ft.Woods belly mower and one, mounted spare 9.00x24 rear wheel.
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