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Home >> Volvo >> 1967 >> 142 Eng CD B18D >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> VOLVO Engines - (4 Cylinder) >> 1963-73 VOLVO B 18B, B 18D & B 20 (544, 122, 140 & P-1800 Series) 4 Cylinder >> Main & Connecting Rod Bearings >> Removal & Installation

Removal & Installation

  1. Remove oil pan and related parts. See OIL PAN REMOVAL . Identify and mark connecting rod caps and main bearing caps to ensure correct replacement.
  2. Remove connecting rod caps and push pistons to top of cylinders. Remove main bearing caps and thoroughly clean all bearing surfaces.
  3. Measure all journals using suitable micrometer. Out-of-roundness on connecting rod bearings should not exceed 0.003" (.076 mm), and main bearings must not exceed 0.002" (.051 mm). If values obtained are close to, or in excess of, wear limits, crankshaft must be removed and reground to undersize.
  4. If all journals check out to standard size, refit with replacement bearings. Reinstall main bearing caps, refit connecting rods to crankshaft and tighten all nuts and bolts to specifications. Reassemble engine in reverse order of removal.
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