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Home >> Geo >> 1990 >> Metro LSi, 2D Convertible, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 14 (1.0L 3-CYL - VIN [5] & 1.0L 3-CYL Turbo - VIN [2]) >> Overhaul >> Crankshaft >> Inspection

Section 14 (1.0L 3-CYL - VIN [5] & 1.0L 3-CYL Turbo - VIN [2]): Overhaul: Crankshaft: Inspection

WARNING: This page is about a different car, the 1987 Chevrolet Sprint. However, it is still accessible from the selected car via links, so may be relevant.
  1. Inspect crankshaft for wear or damage. Measure crankshaft for out-of-round and taper with a micrometer. Out-of-round or taper must not exceed .0004" (.01 mm).
  2. Mount crankshaft in "V" blocks and measure crankshaft runout using a dial indicator on No. 2 journal. If runout exceeds .0023" (.06 mm), replace crankshaft.
  3. Position crankshaft in cylinder block with bearings and journal bearing caps installed. Using a dial indicator, measure crankshaft end play. Standard end play measurement is .004-.012" (.11-.31 mm). Maximum end play is .015" (.38 mm). If specifications are exceeded, replace thrust bearing.
  4. Inspect main bearings for pitting, scratches, wear or damage. If any of these conditions are found, replace entire set of bearings. Check oil clearance of main bearings using Plastigage method.
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