5008326 EVINRUDE Service Manual, 15-30, All Models, English

Overhaul Programs
Your Caterpillar dealer may be offering a variety of options regarding overhaul programs and Caterpillar recommends that an Overhaul be performed at this maintenance interval.Overhaul Options
Caterpillar Dealer - Contact your Caterpillar dealer to schedule a Before Failure Overhaul.Overhaul Recommendations
Overhaul programs vary from dealer to dealer. Therefore, Caterpillar recommends that you confer with your dealer to obtain specific information regarding the types of programs offered and overhaul services provided for extending the life of your engine.Exchange or RebuildVibration Damper BearingsStarting MotorsCylinder HeadWoodward ActuatorReplace the damper for any of the reasons that follow.1. The engine has had a failure because of a broken crankshaft.2. The crankshaft front bearing is badly worn.3. There is a large amount of gear train wear that is not caused by a lack of oil.If none of the above conditions is found, dampers can be used again at overhaul.ReplaceMain and Connecting Rod BearingsCamshaft BearingsRocker Arm BearingsFuel InjectorsAftercooler CoreAccessory Group BearingsCentrifugal Filter BearingsFront and Rear Gear Train BearingsCylinder Head Valves and Valve GuidesCylinder Head Valve Spring GuidesExhaust Manifold Seals and BellowsExhaust ShieldsIntake Air Lines SealsFuel Rack BearingsAir Shutoff Cylinder (If Equipped)CleanOil CoolerLube Oil Suction ScreenInspect/Replace if NecessaryPistons, Piston Rings and Piston RodsCylinder LinersCrankshaftCamshaftsValve Mechanism GroupFront and Rear Gear GroupExhaust ManifoldsShutoff Controls and AlarmsPriority ValveThe ideal time for inspecting these items is while your engine is disassembled for overhaul. Inspect each component for potential damage.* If the crankshaft is removed for any reason, use the magnetic particle inspection process to check the crankshaft for cracks.* If the camshaft is removed for any reason, use the magnetic particle inspection process to check the camshaft for cracks.* If wear is apparent at inspection of the rear gear group, replace the crankshaft and idler gears with new gears of the same part number. If a gear has failed and damaged other gears, replace the entire rear gear group with new replacement gear group.Replace Gaskets and SealsCrankcase Side Cover GroupCentral Structure Cover GroupCamshaft Front Cover GroupCamshaft Drive Gear Cover GroupFront Housing GroupGear Inspection GroupRear Housing GroupRear Structure Cover GroupPower Take-Off Cover GroupPriority Valve GroupCrankshaftValve Mechanism Cover GroupOil LinesAll Water LinesOil CoolerVibration DamperFuel LinesYour Caterpillar dealer can provide these services and components for you and ensure that they are operating within the appropriate specifications.Have your Caterpillar dealer check these components for proper operation and correct settings. He can rebuild or furnish exchange components.These components should be inspected according to the instructions found in various Caterpillar reusability publications. Refer to the Index Of Publications On Reusability Or Salvage Of Used Parts section of the Guideline For Reusable Parts and Salvage Operations, SEBF8029 to determine the reusability publications needed for inspecting your parts.The Guideline For Reusable Parts and Salvage Operations is part of an established Caterpillar parts reusability program. These guidelines were developed to assist Caterpillar dealers and customers reduce costs by avoiding unnecessary expenditures for new parts when existing parts can be used as is, repaired or salvaged. Parts complying with the specifications outlined in the reusable parts guideline will give an additional service life.