Can crankshaft be machined?
In respect to this, how much does it cost to get a crankshaft machined?
Turning a crank around here is about $150. They turn and polish it, check it for straightness, and straighten if needed.
Secondly, do I need to polish my crankshaft? If a used crank checks out OK and you intend to re-use it (with no need to re-grind), each journal can be polished on a crankshaft belt polisher, using 400 grit, stepped up to 600 grit. The journals should not be “mirror” polished, since microscopic scratches are needed to provide oil cling.
Likewise, people ask, when should I grind my crankshaft?
The main reason crankshaft grinding is done is because the crank wears over time. Over thousands miles the end play between the crankshaft and the bearings increases. When the “fit” between the bearings and the crank isn't perfect it lowers oil pressure and decreases lubricity.
How do I know if my crankshaft is bad?
Symptoms of a Bad Crankshaft Position Sensor
- Your “Check Engine” Light is Blinking.
- It's Difficult to Get Your Vehicle to Start.
- Your Vehicle is Stalling and/or Backfiring.
- The Engine is Making Your Vehicle Vibrate.