21048297 Volvo.Penta Cylinder block

Overhaul Considerations
If you elect to perform an overhaul yourself, without having a Caterpillar dealer perform the overhaul for you, then you should be aware of the following.Rebuild or Exchange
Cylinder Head Assembly, Connecting Rods, Pistons, Cylinder Walls, Piston Pins, Turbocharger, Oil Pump, Fuel Transfer Pump, Damper and GovernorThese 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 Guidelines 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.If your parts comply with the established visual, dimensional, etc., inspection specifications expressed in the reusable parts guideline, then they should be reused. Parts complying with the specifications outlined in the reusable parts guideline will give an additional service life.If your parts are not within specification, then they should be salvaged, repaired or replaced. Failure to salvage, repair or replace out-of-spec parts will result in unscheduled downtime and could result in costly repairs caused by potential damage to other engine parts.Furthermore, the use of out-of-spec parts can reduce your engine's efficiency and increase fuel consumption. Reduced engine efficiency and increased fuel consumption translates into higher operating costs for you. Therefore, Caterpillar recommends that you salvage, repair or replace your out-of-spec parts.Install New
Piston Rings, Main Bearings, Rod Bearings and Crankshaft SealsIn most probability, your piston rings, main and rod bearings and crankshaft seals will not last until your second overhaul. Therefore, Caterpillar recommends the installation of these new components at each overhaul period.Inspect
Crankshaft, Camshaft, Camshaft Followers and Bearings, Fuel System Linkage, Gear Train, Gear Train Bushings, and Driven Unit AlignmentThe ideal time for inspecting these items is while your engine is disassembled for overhaul. Inspect each component for potential damage according to the following information.* Crankshaft - Inspect for deflection, journal damage and bearing material seized to the journal. At the same time, check the taper and profile of the crankshaft journals by interpreting your main and rod bearing wear patterns. If the crankshaft is removed for any reason, use the magnetic particle inspection process to check the crankshaft for cracks.* Camshaft - Inspect the camshaft for journal damage and lobe damage. If the camshaft is removed for any reason, use the magnetic particle inspection process to check the camshaft for cracks.* Camshaft Followers and Bearings - Inspect the cam bearings for fatigue and wear.* Dampers (If Equipped) - It is our recommendation to replace dampers for any of the reasons that follow. For Steps 1 through 3, the inspection must be made during overhaul.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.4. Inspection shows slippage (movement) between the inner and outer member of rubber dampers.5. Inspection shows rubber deterioration because of cracking, spalling, splitting, etc..6. Leaks, cracks or physical damage to visconic dampers.If none of the above conditions is found, dampers can be used again at overhaul, providing the damper is not damaged.* Gear Train and Gear Train Bushings - Inspect for worn gear teeth, unusual fits and unusual wear.* Driven Unit Alignment - Upon reassembly of the drive line and driven unit check alignment as outlined in LEBH9324, the Agricultural and Material Handling Application and Installation Guide, and SEHS7654, Alignment-General Instructions. For additional information regarding these items, contact your local Caterpillar dealer for assistance.Clean/Test
Oil Cooler and Aftercooler Cores
Caterpillar recommends that the oil cooler and aftercooler cores be removed, cleaned and pressure tested at Overhaul.
Do not use caustic cleaners to clean the core. Caustic cleaners will attack the internal metals of the core and cause leakage.
This cleaning procedure may be used for both the oil cooler and the aftercooler cores.1. Remove the core. Turn the core upside down to remove debris from the inlet.2. Back flush internally with cleaner to loosen foreign substances and to remove oil. Caterpillar recommends the use of Caterpillar Hydrosolv Liquid Cleaners. The following chart lists part numbers and quantities of recommended cleaners available from your Caterpillar dealer. 3. Steam clean the core to remove cleaner film. Flush the aftercooler core fins. Remove any other trapped debris.4. Wash the core with hot, soapy water. Rinse thoroughly with clean water.5. Dry the core with compressed air. Blow air in reverse direction of the normal flow. Use all necessary safety equipment while working with compressed air.6. Inspect the system to ensure cleanliness. The core should be pressure tested. Test and repair the core as necessary. Install the core.For more information on cleaning the cores, contact to your Caterpillar dealer.Dealer Exchange Components
This cost cutting service permits exchanging worn engine components for quality Cat dealer rebuilt components on an over-the-counter basis. When needed, these parts are ready for a substantial savings in both time and money. Caterpillar Remanufactured Components - Manufacturing techniques and processes are used to restore components to "like-new" performance capabilities and are exchanged for existing parts. The processes used result in an end product that conforms to the manufacturer's original functional specifications.The following is a list of remanufactured components currently being offered by Caterpillar in many countries.* Short block* Cylinder head - bare* Cylinder head - assembly and group* Crankshaft - undersized* Crankshaft - upgrade to new* Complete turbocharger* Turbocharger cartridges* Water pump* Oil pump* Connecting rods* Compressors* Alternator* Starting motorCaterpillar parts books list Note columns before Part Number columns. An "R" in the Note column indicates that a remanufactured part may be available. If the component you need is not listed, contact your Caterpillar dealer to see if it is offered under a dealer exchange component program. Caterpillar Remanufactured Engine - When downtime is