Crankshaft Polishing

Arguably, the crankshaft is the most important piece in the engine, not only is it the largest moving piece in your engine but also almost every moving part in the engine is in some way attached to the crankshaft. This requires close attention to any crankshaft’s condition before returning it to service.

The crankshaft does not turn directly on the bearings but on the thin film of oil trapped between the surfaces. An inpection for cracks within your crankshaft will be the first stage as the slightest crack here can cause a complete engine failure. If there are no cracks we will either complete a crankshaft polish or grind. A crankshaft polish is required when the crank journals are still round but need smoothed to allow the oil film to form properly.

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