CRANKSHAFT AND MAIN BEARINGS—H.2of the one with the tag (see Fig. H.2).Note: If the original bearings are to berefitted, identify each bearing half to itsrespective position.5.If the thrust washers require removal, it isnecessary to remove the center main bearing cap.Remove the two bottom half thrust washers fromthe recesses in the center main bearing cap. Thetwo top half thrust washers should be removed bysliding round from one side, using a suitable pieceof thin hard wood, until withdrawal can be effected.Identify each thrust washer half to its relativeposition.To Refit Main Bearings and Thrust Washers1.Refit the main bearing half to the bearing caplocating it in the tag slot. Liberally oil the other halfof the bearing, insert it plain end first and slide itaround the crankshaft journal until the locating taglocates in its slot. Oil the cap half of the bearingand refit the cap securing with the two setscrewsand shim washers. Tighten the setscrews to atorque setting as given on Page B.1.Note: Make sure that the bearing caps arefitted to their original positions. Each capis numbered to correspond with its engineposition commencing with No. 1 at thefront of the engine. Each cap is alsomarked with a serial number as stampedon the cylinder block bottom face. Theseshould read in line (see Fig. H.3).2.Tighten the setscrews on the remainder of thebearing caps, which were slackened off, ensuringthey are tightened to the correct torque setting.3.To refit the thrust washers, liberally oil the twoupper halves with lubricating oil and slide them intothe recesses provided on either side of the mainbearing housing. The steel side of the thrustwashers should be towards the bearing housingand the cap. Position the two lower halves oneither side of the bearing cap and refit the cap.Secure with the setscrews tightened to the torquesetting given on Page B.1.4.Check the crankshaft end float to ensure that aclearance of 0.004/0.015 in (0.102/0,38 mm) exists.5.Refit the rear main bearing bridge piece togetherwith new joints between the cylinder block andbridge piece and new sealing rubbers at the bridgepiece ends (see Fig. H.6). Secure the bridge pieceto the cylinder block with the two recessed screwsand fit the two setscrews securing the rear mainbearing oil seal housing to the bridge piece.6.Refit the oil pump as detailed on Page L.5.7.Refit the oil delivery and suction pipes to the oilpump.8.Refit the sump strainer and sump.Fig. H.3.View of Crankcase showing Serial Numbers andIdentification Numbers.
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