GENE RAL I :'ol FOR M ATIO N 3 1 6. Read each procedure completely while looki ng at the actual parts before starting a job. Make sure you thor- oughly understand what is to be don e and then caref ully follow the procedure, step by step. NOT E Some of theprocedures or service specifica- tions in this manual may not be accurate if the engine has been modified or if it has been equipped with after-market equipment. Ifinstalling after-market equipment or if the engine has been modified.file all pr intedin- structions or technical information regard- ing the new equipment in a folder or notebook for fu ture reference. If the engine was purchased used.
the previous Olmer may have modified it or installed non-stock parts. If necessary: consult with a dealer or the accessory manufacturer on ser- vice-related changes. in excess oft hosc for which they were designed. The bear- ing or rotating part can disintegrate and cause serious in- jury and damage. Hold the inner bearing race by hand to prevent bearing damage when using compressed air. 7. Recommendations are occasionally made to ref er ser- vice or maintenance to a marine dea lership or a specialist in a particular field. In these cases, the work will be done more quickly and economically than performing the work at home . 8. In procedural steps.
the term replace means to discard a defective part and replace it with a new or exchange unit. Overhaul means to remove, disassembl e, inspect, mea- sure. repair or replace defective parts , reassemble and in- stall major systems or pans. 9. Som e operations requ ire the use of a hydraulic press. It would be wiser to have these ope rations perf ormed by a shop equipped for such work, rather than to try to do the job you rself with makeshi ft equipment that may damage the machine. SERV ICE HI NTS Most of the service procedures covered are straightfor- ward and can be pcrfo nn ed by anyone reasonably handy with lools. It is suggested.
however, that you consider your capabilities ca refully before attempting any opera- tion involving major disassemb ly. I. When disassembling engine or drive components, mark the parts for location and mark all pans that male to- gether. Small parts. such as bolls, can be identified by placing them in plastic sandwich bags (Figure 3). Sea l the bags and label them. I freassemb ly will take place imme- diately, an accepted practice is to place nuts and bolts in a cupcake tin or egg carton in the orde r of disassembly. Be- cause many types or ink fade if appli ed to tape, use a per- manent ink pen. 2. Protect finished surfaces from physical d amag e or cor- rosion.
Keep gasoline off painted surfaces. 3. Use penetrating oil on frozen or tight bolts, then strike the bolt head a few times with a hammer and pun ch (usc a screwdriver on screws). Av oid the usc of heat where pos- sible. as it can warp. melt or affect the t emper of pan s. Heat also damages finishes, especially paint and plastics. 4. No parts rem ove d or installed (other than bushings and bearings) in the procedures described in this manual should require unusual force dur ing disassembly or as- sembly. If a part is difficult to remove or install, find out why before proceeding. 5.
C over all openings after removing parts or compo- nent s to prevent contaminants and small tool s from falling m. 10. Repairs go much faster and easier if the machine is clean befo re begi nning work. There are many special cleaners on the market for washing the engine and related parts. Follow the manufacturer's directions on the con- tainer f or the best results. Clean all oily or greasy parts with cleaning solvent as they are re mov ed. WAR.NIN G Never use gasoline as a cleaning agent. Be sure to work in a well-ventilated area when using cleaning solvent. Keep a fi re extin- guisher.ratedfor gasoline fi res, on hand. 11.
Much of the labor charges for repairs made by dealers are for the time involved in the removal, disassembly, as- sembly and reinstallation of other parts in order to reach the defective part. It is often possible 10 perform the pre - liminary operations and then take the defective unit to the dealer for repair at considerable sav ings.