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ENGINE 42 OVERHAUL Crankshaft - inspection 1. Clean crankshaft, ensure all oilways are clear. 2. Check crankshaft journals for wear and ovality, make three checks at 120 ° intervals in centre of journals. CAUTION: Crankshaft journals may not be big-end bearings are only available in one size 3. Check thrust washers for wear and scoring, replace as necessary: Crankshaft - refit CAUTION: If crankshaft end-float 1. Clean main bearing shell locations in cylinder block, clean main bearing caps. 2. Check that ring dowels are fitted in main bearing cap locations and that bolt holes are 3. Check threads of main bearing cap bolts for damage, renew bolts in pairs. 4. Lubricate new upper main bearing shells with engine oil and ensuring that they are centrally NOTE: These bearing shells are grooved. 5. Lubricate thrust washers with engine oil and fit, oil groove side outwards to each side of centre 6. Lubricate crankshaft journals with engine oil and using assistance, position crankshaft in CAUTION: Ensure thrust washers are not 7. Lubricate new main bearing shells with engine oil and fit to main bearing caps. NOTE: These bearing shells are plain. 8. Fit main bearing caps ensuring that they are correctly orientated and in their fitted order. CAUTION: Do not apply sealant to grooves |