Posted by papaw8 on November 17, 2019 at 09:21:06 from (75.107.157.250):
In Reply to: Chevy Truck 250 update posted by courtland1949 on November 16, 2019 at 19:00:29:
As said below most likely fuel starvation. Set timing with vacuum advance line plugged.speed engine up and watch timing marks with timing light to check centrifugal advance. With engine speeded up plug vacuum line on and mark should advance further if vacuum advance is working. Vacuum advance will not cause it to loose power only works at light load for increased mileage.centrifugal advance will affect power. May have an egr valve test with hose plugged. Also power valve in carb could be stuck or restricted exhaust. Most likely starving for fuel.
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Today's Featured Article - Fasteners: The Nuts and Bolts of Nuts and Bolts - by Curtis Von Fange. The nuts and bolts of nuts and bolts is an interesting and essential piece of knowledge that applies to our older tractors. An improperly torqued capscrew on an engine head or a shear bolt that is too hard on the driving shaft of a bushog can create havoc and make an expensive and uncalled for repair. Let�s examine the purpose and design of these fasteners in order to ensure their proper use. Fasteners are probably one of the aspects of mechanics that is given the least amount of thought.
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