Reasons for Lack of Power After Engine Overhaul

1 Answers
MacAlaina
07/29/25 3:42pm
Here are the reasons for lack of power after engine overhaul: 1. Non-standard repair and assembly processes: For example, not using specialized tools when disassembling the crankcase, but instead using hammers to strike and screwdrivers to pry open the case, resulting in deep scratches or deformation on the crankcase mating surfaces, leading to crankcase air leaks; poor concentricity of the crankshaft after the left and right crankcases are joined, increased friction of moving parts, engine overheating, and reduced power performance. 2. Failure to inspect the engine's lubrication system after vehicle repair: The process of replacing the cylinder block and crankshaft requires cleaning the old cylinder gasket. If the cylinder gasket in the crankcase is not thoroughly cleaned, the oil passages can easily be blocked by debris such as gasket material and sealant, preventing the lubrication system from functioning properly.
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