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Crankshaft Main Bore Resurfacing – Why and When is it Needed?
What is Crankshaft Main Bore Resurfacing?
The crankshaft is one of the most critical engine components, and its main bore housings must be perfectly aligned to ensure smooth operation. Over time, wear and deformation can cause:
❌ Increased engine vibration.
❌ Power loss and unstable performance.
❌ Premature bearing wear.
❌ Oil leaks and pressure loss in the lubrication system.
How is Crankshaft Bore Resurfacing Performed?
🔹 Inspection and measurement – assessing deformation levels.
🔹 Precision machining – restoring factory specifications.
🔹 Finishing process – eliminating micro-irregularities.
🔹 Final testing – ensuring proper bearing fit.
When is Crankshaft Main Bore Resurfacing Necessary?
✔ During a full engine overhaul.
✔ If excessive vibration or knocking occurs.
✔ When replacing the crankshaft.
✔ After engine overheating.
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