Diagnose first then change parts!!!! putting parts in can create more problems compounding the fault. Easy first checks: Take the air intake hose/pipe off the carburetor, open the throttle to 1/2 open, and (safely in neutral) hold your hand over the intake while cranking the engine with the starter. There should be very strong suction. If there is none or very little, it is an indication of valve timing issues. This assumes the engine has run OK before it started to decline. If good suction, checking the fuel flow to the carb is next. It needs to flow for one minute and fill a pint or more into a clean jar. Is there Spark?, does the spark come out of the plug wires? Are the wires on the correct plugs in the firing order? are the points gapped correctly on the peak of the distributor cam? Is there play up down toward and away in the distributor shaft? is there power to the coil using a test light? Does a test light blink when touching the distributor side of the coil when cranking? All these should be able to be done with low effort. Then if the issue has not been found, do a compression check. Jim
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Today's Featured Article - Restoration Story: Fordson Major - by Anthony West. George bought his Fordson Major from a an implement sale about 18 years ago for £200.00 (UK). There is no known history regarding its origins or what service it had done, but the following work was undertaken alone to bring it up to show standard. From the engine number, it was found that this Major was produced late 1946. It was almost complete but had various parts that would definitely need replacing.
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