1963-1973 Mercruiser all Engines and Drives Service Manual Books 1 and 2, Page 567Get this manual

1963-1973 Mercruiser all Engines and Drives Service Manual Books 1 and 2, Page 567

DETERMINING UPPER DRIVE SHAFT PRELOAD .NO TE: orne mod J20-thru-888 dri shilf housings hove bellville wa.sll er under th
Preload on Drive Shaft BIn .r gca using dri vc shaft with pinio nut into upp dri ve shaf plin an an in ch lbsreadi ng rquto
ch e' prel ad to in Ibs (1.06- o Figure 11 Attaching String to Upper Drive Shaft oat lo wer seal lips with Mullipu rpoSl;
Lu brica nt befo re placin uppe driv shaft asse mbly in dr shaft housin"Ex nd end of rin drive, if fo ll wed 5Install top
ve (o wa ter pu mp 60-80-90 mo Is) witho ut" ri ngIn tall and lightco ver (or od y) screws venl whi! urning dri'e shaftImpro
per over-s hi mming wou ld be indicated by in in{; tig hte ni of drivhafl 8II re tell 'io is requ ired urn drive shafthims
mu b rem vcd from Wlde be ari ng cup in cover or pu mp baseIf sio than ec ifihims must add ed un bearin up to btain pro pr
load If ak ingnge in him thi kn ess, cove pump base again mu ue torq ued l' re eas urin dri ve sha ft bearing pr load SHIMMING