1999 Volvo Penta "WT" Models Workshop Manual, Page 203Get this manual
Installation Crankshaft bearings are the precision insert type and do not use shims for adjustmentIf clearances are excessive, new bearing will be requiredService bearings are available in standard size and 0.001 in(0,0254 mm), 0.002 in{D,050S mm}, 0.010 in(0,2540 mm), and 0.020 in(0,5080 mm) undersizeAlso 0.009 in(0,2286 mm) is available for 5.7L engines onlySelective fitting of both connecting rod and crankshaft bearings is necessary to obtain close tolerancesFor this reason you may use, for example, one half of 0.001 in(0,0254 mm) undersize bearing which will decrease the clearance 0.0005 in{D,0127 mm} from using full standard bearingUndersize Crankshaft Journals When production crankshaft cannot be precision fit by the method described previously, it is then ground 0.009 in(0,2286 mm) undersizeGRIND ONLY THOSE CRANKSHAFT JOURNALS THAT CANNOT BE PROPERLY FITTEDALL JOURNALS WILL NOT NECESSARILY BE GROUNDA 0.009 in(0,2286 mm) undersize bearing or 0.01 in(0,254 mm) undersize bearing will then be used for precision fitting in the same manner as previously describedOversize Rear Crankshaft Bearing Thrust Faces Some production engines may have rear crankshaft bearings that are 0.008 in{D,2032 mm} wider than standard across the thrust facesThe crankshaft on these engines can be identified by ".008" stamped on the rear counterweightIf the rear crankshaft bearings are replaced, they must have the proper distance between thrust faces to obtain correct crankshaft end play Important