Pontiac GTO Evac Pump Kit - Got Vacuum For Your Hi-Po Engine?
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After an inventory of the parts, the first order of business is to remove the lower crankshaft pulley from the engine. In this case, the alternator belt is removed and a 1/2-inch socket is used to pull the four crankshaft-pulley bolts. A crankshaft drive mandrel (left) designed to be bolted to the front of the lower pulley drives the pump. The crankshaft drive mandrel is drilled to support either three- or four-bolt harmonic balancers. View Related Article
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