1985 OMC 65, 100 and 155 HP Models Commercial Service Manual, PN 507450-D, Page 8Get this manual
Introduction This manual covers Service Information on all current 65 thru 155 commercial modelsMuch of the information also applies to previous modelsUse this manual together with the proper Parts Catalog for part numbers and for exploded views which are valuable aid to disassembly and reassemblyThis manual presents the metric dimension first and the English dimension in parentheses)When referring to the metric dimen sion, comma is used to represent decimal point which is standard printing practice in Europe
Good Service Practice
When repairing component, the most reliable way to assure good job is to do complete overhaul on that component, rather than just replacing the bad partWear not readily apparent on other parts could cause malfunction soon after the repair jobRepair kits and overhaul kits contain all the parts needed to assure complete repair, to eliminate guesswork, and to save timeRepair time can also be minimized by the use of special toolsOMC special tools speed repair work so it can be done within flat rate timeIn some cases the use of substitute tools can actually damage the part