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Home >> Volvo >> 1977 >> 242 Standard Trans >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Mechanical >> 240 Series 4 Cylinder >> Crankshaft Main & Connecting Rod Bearings >> Main & Connecting Rod Bearings >> Removal & Installation

Removal & Installation

  1. Remove oil pan and related parts. See 0/7 Pan Removal. Identify and mark connecting rod caps and main bearing caps to ensure correct replacement.
  2. Remove connecting rod caps and push pistons towards top of cylinders. Remove main bearing caps (one at a time) and thoroughly clean all bearing surfaces.
  3. Measure all journals, using a micrometer. Out-of-roundness on connecting rod bearings should not exceed 0.003" (0.07 mm) and on main bearings, it should not exceed 0.002" (0.05 mm). If values obtained are close to, or in excess of wear limits, crankshaft must be reground to next suitable 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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