How should burrs be removed from the crankshaft oil holes and what steps should be taken to ensure the crankshaft is in good condition on Nissan Quest?

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Remove all burrs from the crankshaft oil holes using a stone, file, or scraper to ensure sharp edges do not gouge or scratch the new bearings. Clean the crankshaft with solvent and dry it with compressed air, ensuring the oil holes are cleaned with a stiff brush and flushed with solvent. Check the main and connecting rod bearing journals for uneven wear, scoring, pits, and cracks, and inspect the rest of the crankshaft for cracks and other damage, which should be magnafluxed by an automotive machine shop to reveal hidden issues. Measure the diameter of the main and connecting rod journals with a micrometer at several points to detect taper and out-of-round conditions, comparing the results to the specified limits. If the journals are damaged, tapered, out-of-round, or worn beyond acceptable limits, have the crankshaft reground by an automotive machine shop, ensuring the correct size bearing inserts are used if reconditioned. Check the oil seal journals at each end of the crankshaft for wear and damage, as worn grooves or nicks may cause new seals to leak; an automotive machine shop may repair the journal with a thin sleeve, or a new crankshaft may be necessary if repair is not feasible. Finally, examine the main and rod bearing inserts.

Genuine Nissan Quest Crankshaft

7 Crankshafts found

Nissan Quest Crankshaft Assembly

Nissan Quest Crankshaft Assembly

Nissan Quest Crankshaft Assembly

Nissan Quest Crankshaft Assembly

Nissan Quest Crankshaft Assembly

Nissan Quest Crankshaft Assembly

Nissan Quest Crankshaft Assembly

Nissan Quest Crankshaft

Nissan Quest Crankshaft Parts Questions & Experts Answers

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