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Top of FormCylinder Head - InstallSMCS -?1100-012Bottom of FormTop of FormInstallation ProcedureTable 1Required Tools?Tool?Part Number?Part Description?Qty?A?-?Loctite Graphite 50 Anti-Seize?-?B?8T-2998?Lubricant?-?C?9S-3263?Thread Lock Compound?-?D?5P-3931?Anti-Seize Compound?-?NOTICEKeep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.Note:?A new spacer plate gasket and a cylinder head gasket must be installed when the cylinder head is removed.Illustration 1g01380021Install O-ring seal (24) onto the dowel in the cylinder block.Install a new gasket (23) onto the cylinder block.Illustration 2g01380020Install spacer plate (22) onto the cylinder block.Illustration 3g01379999Install a new gasket (21) onto the cylinder block. Install water seals (20) and oil seal (19).Illustration 4g01379996Use a suitable lifting device to install cylinder head (18). The weight of cylinder head (18) is approximately?293 kg?(645 lb).Note:?Install the cylinder head on the dowel pins on the cylinder block.Illustration 5g01379991Apply Tooling (A) to the threads of the cylinder head bolts (17) and both sides of the washers. Install bolts (17).Illustration 6g01072801Note:?The bolts that are marked "x" are?216 mm?(8.5 inch)?long: 11, 12, 13, 14, 16, 18, 20, 22, 24 and 26. The remaining bolts are?194 mm?(7.6 inch)?long.Tighten the cylinder head bolts according to the following procedure.Tighten bolts 1 through 26 to a torque of?270 ± 15 N·m?(200 ± 11 lb ft)?in a numerical sequence.Tighten bolts 1 through 26 to a torque of?450 ± 15 N·m?(330 ± 11 lb ft)?in a numerical sequence.Tighten bolts 1 through 26 again to a torque of?450 ± 15 N·m?(330 ± 11 lb ft)?In a numerical sequence.Illustration 7g01379980Position manifold (14) and install bolts (13).Install tube assemblies (12) and (16).Connect hose (15).Illustration 8g01377746Connect harness assembly (11).Illustration 9g01377737Connect harness assembly (10).Illustration 10g01377739Apply a 50/50 mixture of Tooling (B) and clean engine oil onto O-ring seal (8) and O-ring seal (9) into sealing plate (7).Illustration 11g01377738Illustration 12g01377731Install sealing plate (6).Position plate (5) and install bolts (4).Apply Tooling (C) onto the threads of bolts (1). Position adapter (3) and install thrust plate (2). Install bolts (1). Tighten bolts (1) until sealing plate (6) and the O-ring seal are seated against the cylinder head.Install bolts (1).Bottom of FormPistons and Connecting Rods - InstallSMCS -?1225-012Top of FormInstallation ProcedureTable 1Required Tools ? ?Tool ? ?Part Number ? ?Part Description ? ?Qty ? ?A ? ?9S-9082 ? ?Engine Turning Tool ? ?1 ? ?B?(1)?? ?5P-3526 ? ?Piston Ring Compressor ? ?1 ? ?B?(2)?? ?200-3914 ? ?Piston Ring Compressor ? ?1 ? ?C ? ?8T-3052 ? ?Degree Wheel ? ?1 ? ?(?1?)For use with the C15 engine.(?2?)For use with the C18 engine.NOTICEKeep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.Note:?Install the connecting rod bearings dry when clearance checks are performed. Refer to Disassembly and Assembly, "Bearing Clearance - Check". Apply clean engine oil on the connecting rod bearings for final assembly.Apply clean engine oil to the cylinder liner bore, to the piston rings, and to the outer surface of the piston.Note:?The piston and connecting rod are matched to a specific cylinder. Ensure that the connecting rod and pistons are installed in the correct cylinder.Use Tooling (A) to rotate the crankshaft until the connecting rod journal is at the bottom center.View ImageIllustration 1g01048560Note:?Be careful not to damage the cylinder liner, the crankshaft journal during installation of the piston and the connecting rod.Use Tooling (B) to install piston (3) and the connecting rod in the cylinder liner.Note:?Install the connecting rod so that the bearing tab is located on the side of the piston cooling jet.Install the upper connecting rod bearing in the connecting rod.Note:?Ensure that the connecting rod bearing is installed so that the bearing tab fits into the notch in the connecting rod.Lubricate the connecting rod bearing with clean engine oil and pull the connecting rod onto the crankshaft journal.Install the lower connecting rod bearing in the connecting rod bearing cap.Note:?Ensure that the connecting rod bearing is installed so that the bearing tab fits into the notch in the connecting rod.View ImageIllustration 2g01016640Position connecting rod bearing cap (2) on the connecting rod.Note:?Ensure that the number on the side of the connecting rod bearing cap is on the same side as the number on the connecting rod. The bearing tabs of the connecting rod bearing cap and the connecting rod are located on the side of the piston cooling jet.Lubricate the threads of bolts (1) with clean engine oil and install bolts (1) .Tighten bolts (1), as follows:Tighten Bolt (A) and Bolt (C) to a torque of 70 ± 4 N·m (50 ± 3 lb ft).Tighten Bolt (B) and Bolt (D) to a torque of 70 ± 4 N·m (50 ± 3 lb ft).Turn Bolt (B) and Bolt (D) for an additional 60 ± 5 degrees (1/6 turn).Note:?If Tooling (C) is not used, place an index mark on each bolt.Tighten Bolt (A) and Bolt (C) to a torque of 70 ± 4 N·m (50 ± 3 lb ft).Turn Bolt (A) and Bolt (C) for an additional 60 ± 5 degrees (1/6 turn).Note:?If Tooling (C) is not used, place an index mark on each bolt.Rotate the crankshaft in order to ensure that the crankshaft turns freely.Bottom of FormCrankshaft Main Bearings - InstallSMCS -?1203-012Top of FormInstallation ProcedureTable 1Required Tools?Tool?Part Number?Part Description?Qty?A?2P-5518?Bearing Tool?1?B?8T-5096?Dial Indicator?1?C?8T-3052?Degree Wheel?1?NOTICEKeep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.Note:?Install the main bearings dry when clearance checks are performed. Refer to Disassembly and Assembly, "Bearing Clearance - Check". Apply clean engine oil on the main bearings for final assembly.Note:?Ensure that the main bearings are installed so that bearing tabs fit into the notch in the cylinder block. The upper halves of the main bearings have the oil groove and the oil hole.View ImageIllustration 1g01020300Position the new upper main bearing (3) on the crankshaft. Insert the end of the upper main bearing that does not have the tab into the cylinder block. Install Tooling (A) in the oil hole of the crankshaft. Carefully rotate the crankshaft in order to push the upper main bearing into the cylinder block.Note:?Push the upper main bearing from the side of the bearing tab with Tooling (A). If the crankshaft is turned in the wrong direction, the tab on the bearing will be pushed between the crankshaft and the bearing area of the cylinder block. This can result in damage to the cylinder block and/or the crankshaft.View ImageIllustration 2g01134355Install thrust plates (4) on each side of the No. 4 main bearing.Note:?Install the thrust plates with the words "Block Side" toward the cylinder block.Install the lower halves of the crankshaft main bearings in the main bearing caps.Note:?Ensure that the main bearings are installed so that bearing tabs fit into the notch in the main bearing caps.View ImageIllustration 3g01018383Position main bearing caps (2) on the crankshaft.Note:?Ensure that the numbers on the main bearing caps match the numbers on the cylinder block. Also ensure that the "FRONT" on the main bearing cap is installed toward the front of the cylinder block.Lubricate the threads of bolts (1) with clean engine oil. Install the bolts.Tighten bolts (1) for the main bearing caps, as follows:Tighten Bolt (A) to a torque of?258 ± 14 N·m?(190 ± 10 lb ft).Note:?Bolt (A) is on the bearing tab side of the main bearing cap.Tighten Bolt (B) to a torque of?258 ± 14 N·m?(190 ± 10 lb ft).Note:?Bolt (B) is on the opposite side of the bearing tab of the main bearing cap.Tighten Bolt (B) for an additional 120 ± 5 degrees (2 flats).Note:?If Tooling (C) is not used, place an index mark on the bolt and the main bearing cap.Tighten Bolt (A) for an additional 120 ± 5 degrees (2 flats).Note:?If Tooling (C) is not used, place an index mark on the bolt and the main bearing cap.Rotate the crankshaft in order to ensure that the crankshaft turns freely.Use Tooling (B) to check the crankshaft end play. Ensure that Tooling (B) is against a machined surface. The end play is controlled by the thrust plates of No. 4 main bearing (center). Refer to Specifications, "Crankshaft" for the crankshaft end play.Bottom of FormValve Actuator (Variable) - InstallSMCS -?1105-012Top of FormInstallation ProcedureTable 1Required Tools?Tool?Part Number?Part Description?Qty?A?5P-3975?Rubber Lubricant?-?NOTICEKeep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.View ImageIllustration 1g03462843Note:?If necessary, install the studs called out in Illustration 1.Install studs (11). Tighten studs (11) to a torque of?50 ± 5 N·m?(37 ± 4 lb ft). Turn studs (11) for an additional 45 ± 5 degrees.Install stud (9) and tighten stud (9) to a torque of?65 ± 10 N·m?(48 ± 7 lb ft). Install support (10) over stud (9).Install studs (8). Tighten studs (8) to a torque of?47 ± 9 N·m?(35 ± 7 lb ft).View ImageIllustration 2g01261951View ImageIllustration 3g03462898Install valve actuator (7).Install nuts (6). Install bolt (5). Install nuts (4).Tighten nuts (6), bolt (5), and nuts (4) in the sequence that is shown in Illustration 3.Tighten bolt (5) and nuts (6) to a torque of?105 ± 20 N·m?(77 ± 15 lb ft).Tighten nuts (4) to a torque of?47 ± 9 N·m?(35 ± 7 lb ft).View ImageIllustration 4g01261947Install the O-ring seals in engine oil connector (1). Apply Tooling (A) on the mounting surface of the variable valve actuator and the engine oil connector.Install engine oil connector (1).Connect harness assembly (2). Connect harness assemblies (3).View ImageIllustration 5g01261994Adjust the lash for the variable valve actuators. Refer to Testing and Adjusting, "Variable Valve Actuators - Inspect/Adjust" for more information on adjusting the variable valve actuators. Tighten jam nut (8) to a torque of?50 ± 10 N·m?(37 ± 7 lb ft).Adjust the lash for the compression brake. Refer to Testing and Adjusting, "Compression Brake Lash - Adjust" for more information on adjusting the lash for the compression brake. Tighten jam nut (9) to a torque of?15 ± 3 N·m?(11 ± 2 lb ft).Bottom of FormRocker Arm and Shaft - InstallSMCS -?1102-012Top of FormInstallation ProcedureTable 1Required Tools?Tool?Part Number?Part Description?Qty?A?124-2946?Lifting Bracket?1?NOTICEKeep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.View ImageIllustration 1g01262841Use Tooling (A) to install rocker arm shaft assembly (2).View ImageIllustration 2g01259735View ImageIllustration 3g03721962Valve rocker arms and unit injector rocker arms can move on the shaft after the bolts have been removed. The shaft should be kept level when removed from the cylinder head. To avoid possible personal injury, keep fingers clear of the valve rocker arms and the unit injector rocker arms when lifting the assembly from the cylinder head.Install studs (1) onto rocker arm shaft assembly (2). Torque studs (1) in the correct order shown. Refer to 3. Tighten studs (1) to a torque of?50 ± 5 N·m?(37 ± 4 lb ft). Turn the studs by an additional 45 ± 5 degrees.Adjust the electronic unit injectors. Refer to Testing and Adjusting, "Electronic Unit Injector - Adjust" or Testing and Adjusting, "Engine Valve Lash - Inspect/Adjust".Adjust the engine valve lash. Refer to Testing and Adjusting, "Engine Valve Lash - Inspect/Adjust".End By:Install the variable valve actuator. Refer to Disassembly and Assembly, "Valve Actuator (Variable) - Install".Bottom of FormElectronic Unit Injector - InstallSMCS -?1290-012Top of FormInstallation ProcedureTable 1Required Tools?Tool?Part Number?Part Description?Qty?B?8T-2998?Lubricant?-?C?1U-5718?Vacuum Pump?1?169-7372Fluid Sampling Bottle?-?4C-4057Tube7.9 mm?(0.31 inch)?OD?-?D?4C-5552?Large Bore Brush?1?E?8T-7765?Surface Reconditioning Pad?-?F?N/A?Nyogel 760G?1?NOTICEKeep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.Use Tooling (C) to remove the fuel and oil from the cylinder. Evacuate as much fuel and oil as possible from the cylinder before installing the electronic unit injector. Several evacuations may be necessary.Use Tooling (D) to clean the carbon deposit from the inside of the electronic unit injector sleeve.Use Tooling (E) to clean the carbon from the seat area that is inside of the electronic unit injector sleeve.View ImageIllustration 1g01259809Install O-ring seals (7) on electronic unit injector (6). Lubricate the top two O-ring seals with a 50/50 mixture of clean engine oil and Tooling (B).View ImageIllustration 2g06493097Apply Tooling (F) to the four terminals of electronic unit injector (6).View ImageIllustration 3g01259759NOTICEWhen an electronic unit injector is replaced, the new electronic injector code must be programmed into the engine's personality module software by using the calibration menu on the Electronic Service Tool. If the new electronic injector code is not entered, the characteristics of the previous electronic unit injector is assumed.If it is not possible to immediately reprogram the electronic injector code into the personality module software, the engine will not be severely harmed. The new electronic injector code should be reprogrammed as quickly as possible in order to optimize engine performance.Install electronic unit injector (6) and clamp (5) into the original location in the cylinder head.Install spacer (4) and bolt (3). Tighten bolt (3) to a torque of?55 ± 10 N·m?(41 ± 7 lb ft).View ImageIllustration 4g01259747View ImageIllustration 5g06579483Use Tooling (G) to connect harness assembly (2).Note:?The stop pin in Tooling (G) will prevent crushing the connector and reduce the chance for damage to wiring. Refer to "Electronic Unit Injector - Test" for more instructions.Install valve bridges (1).Note:?Make sure that the slotted ends of the valve bridges are positioned toward the rocker arm shaft.Remove the air from the fuel system. Refer to Testing and Adjusting, "Fuel System - Prime".End By:Install the rocker arms and the rocker arm shaft. Refer to Disassembly and Assembly, "Rocker Arm and Shaft - Install".Bottom of FormPiston Cooling JetSMCS -?1331Part Number -?276-4637Top of FormView ImageIllustration 1g02991456Table 1Specification for?276-4637?Oil Jet Tube As?Item?Qty?Part?Specification Description?1?-?-?Tighten the bolt to?40 ± 8 N·m?(30 ± 6 lb ft).?View ImageIllustration 2g02991457Table 2Item?Qty?Part?Specification Description?2?-?-?Diameter of the oil jet tube assembly is?1.83 mm?(0.072 inch).?-?-?-?Use compressed air in order to check the oil jet tube assembly for plugging.?-?-?-?Visually inspect the oil jet tube assembly for damage or distortion. If there is any damage or distortion, replace the oil jet tube assembly.?-?-?-?Note: The proper orientation of the oil jet tube assembly is essential to ensure correct cooling and lubrication of the piston. When you remove the oil jet tube assemblies from the engine, be sure to handle the oil jet tube assemblies in a manner that the jets will not become damaged.?View ImageIllustration 3g02991458Table 3Item?Qty?Part?Specification Description?-?-?-?Dimension (A) is?53.27 ± 0.25 mm?(2.097 ± 0.010 inch).?Dimension (B) is?3.15 ± 0.25 mm?(0.124 ± 0.0010 inch).Dimension (C) is?63.37 ± 0.25 mm?(2.495 ± 0.010 inch).Dimension (D) is?250.00 ± 0.25 mm?(9.842 ± 0.010 inch).Bottom of FormEngine Valve Lash - Inspect/AdjustSMCS -?1102-025Top of FormTo prevent possible injury, do not use the starter to turn the flywheel.Hot engine components can cause burns. Allow additional time for the engine to cool before measuring valve clearance.This engine uses high voltage to control the fuel injectors.Disconnect electronic fuel injector enable circuit connector to prevent personal injury.Do not come in contact with the fuel injector terminals while the engine is running.Note:?Valve lash is measured between the rocker arm and the valve bridge. All measurements and adjustments must be made with the engine stopped and the valves fully closed.Valve Lash CheckAn adjustment is NOT NECESSARY if the measurement of the valve lash is in the acceptable range. Check the valve lash while the engine is stopped. The range is specified in Table 1.Table 1Valve Lash?? ?Valves ? ?Acceptable Range for Valve Lash ? ?Inlet ? ?0.38 ± 0.08 mm (0.015 ± 0.003 inch) ? ?Exhaust ? ?0.76 ± .08 mm (0.030 ± 0.003 inch) ? ?If, the measurement is not within this range adjustment is necessary. Refer to Testing and Adjusting, "Valve Lash Adjustment".Valve Lash AdjustmentView ImageIllustration 1g03429646(A) Inlet valves(B) Exhaust valves(C) Left side of the engine(D) Cylinder number(E) Front of the engine(F) Flywheel end of the engine(G) Right side of the engineView ImageIllustration 2g01023432Typical view(1) Valve adjustment locknut(2) Exhaust adjustment screw(3) Valve adjustment locknut(4) Inlet adjustment screw(5) Place for feeler gaugeTable 2Valve Lash?? ?Valves ? ?Lash Setting ? ?Inlet ? ?0.38 mm (0.015 inch) ? ?Exhaust ? ?0.76 mm (0.030 inch) ? ?Adjust the valve lash while the engine is stopped. Use the following procedure in order to adjust the valves:Note:?For the SDP engines, it is not necessary to remove the variable valve actuators.Put the No. 1 piston at the top center position. See Testing and Adjusting, "Finding Top Center Position for No. 1 Piston" for further details.Note:?If the engine is equipped with an engine compression brake, loosen the adjustment screw for the lash on the slave piston for the compression brake prior to adjusting the engine valve lash. Refer to the Testing and Adjusting, "Slave Piston Lash - Adjust" topic in order to adjust the slave piston lash.With No. 1 piston at the top center position of the compression stroke, an adjustment can be made to the valves.Before any adjustments are made, lightly tap each rocker arm at the top of the adjustment screw. Use a soft mallet to ensure that the lifter roller seats against the camshaft base circle.Adjust the valve lash on the inlet valves for cylinders 1, 2, and 4.Loosen valve adjustment locknut (3) .Place the appropriate feeler gauge (5) between the inlet rocker arm and the inlet valve bridge. Turn inlet adjustment screw (4) while valve adjustment locknut (3) is being held from turning. Adjust the valve lash until the correct specification is achieved. Refer to Table 2.After each adjustment, tighten valve adjustment locknut (3) while valve adjustment screw (4) is being held from turning. Tighten to a torque of 30 ± 7 N·m (22 ± 5 lb ft). Recheck each adjustment.Adjust the valve lash on the exhaust valves for cylinders 1, 3, and 5.Loosen valve adjustment locknut (1) .Place the appropriate feeler gauge (5) between the exhaust rocker arm and the exhaust valve bridge. Turn exhaust adjustment screw (2) while valve adjustment locknut (1) is being held from turning. Adjust the valve lash until the correct specification is achieved. Refer to Table 2.After each adjustment, tighten valve adjustment locknut (1) while valve adjustment screw (2) is being held from turning. Tighten to a torque of 30 ± 7 N·m (22 ± 5 lb ft). Recheck each adjustment.Remove the timing bolt, and turn the flywheel by 360 degrees in the direction of engine rotation. Turning the flywheel 360 degrees will position the No. 6 piston at the top center on the compression stroke. Install the timing bolt in the flywheel.Adjust the valve lash on the inlet valves 3, 5, and 6.Loosen valve adjustment locknut (3) .Place the appropriate feeler gauge (5) between the inlet rocker arm and the inlet valve bridge. Turn inlet adjustment screw (4) while valve adjustment locknut (3) is being held from turning. Adjust the valve lash until the correct specification is achieved. Refer to Table 2.After each adjustment, tighten valve adjustment locknut (3) while valve adjustment screw (4) is being held from turning. Tighten to a torque of 30 ± 7 N·m (22 ± 5 lb ft). Recheck each adjustment.Adjust the valve lash on the exhaust valves 2, 4, and 6.Loosen valve adjustment locknut (1) .Place the appropriate feeler gauge (5) between the exhaust rocker arm and the exhaust valve bridge. Turn exhaust adjustment screw (2) while valve adjustment locknut (1) is being held from turning. Adjust the valve lash until the correct specification is achieved. Refer to Table 2.After each adjustment, tighten valve adjustment locknut (1) while valve adjustment screw (2) is being held from turning. Tighten to a torque of 30 ± 7 N·m (22 ± 5 lb ft). Recheck each adjustment.Remove the timing bolt from the flywheel after all valve lash adjustments have been made.Refer to the Testing and Adjusting, "Slave Piston Lash - Adjust" topic for information on adjusting the slave piston lash.Note:?The engine valve lash must be adjusted before you adjust the compression brake.The lash must also be adjusted on the electronic unit injector. Refer to Testing and Adjusting, "Electronic Unit Injector - Adjust" for more information.Bottom of FormElectronic Unit Injector - AdjustSMCS -?1290-025Top of FormNote:?For the SDP engines, it is not necessary to remove the variable valve actuators.View ImageIllustration 1g01192268Injector Mechanism(1) Rocker arm(2) Adjustment screw(3) LocknutTo make an adjustment to the unit injectors on cylinders 3, 5, and 6 use the following procedure:Put the No. 1 piston at the top center position on the compression stroke. Refer to Testing and Adjusting, "Finding Top Center Position for No. 1 Piston".Turn unit injector adjustment screw (2) clockwise until contact with the unit injector is made.Tighten the adjustment screw to an additional 2 turns.Turn the adjustment screw counterclockwise for 2.5 turns.Turn the adjustment screw until the screw makes contact with the electronic unit injector.Turn unit injector adjustment screw (2) clockwise for an additional 180 degrees.Hold the adjustment screw in this position and tighten locknut (3) to a torque of 100 ± 10 N·m (74 ± 7 lb ft).To make an adjustment to the unit injectors on cylinders 1, 2, and 4, remove the timing bolt. Turn the flywheel by 360 degrees in the direction of engine rotation. The direction of engine rotation is counterclockwise, as the engine is viewed from the flywheel end. This will put the number 1 piston at the top center position on the exhaust stroke.Repeat Steps 5 through 7.Remove the timing bolt from the flywheel after all the unit injector adjustments have been made. Reinstall the valve mechanism cover.Bottom of FormVariable Valve Actuators - Inspect/AdjustSMCS -?1105-025; 1105-040Top of FormNOTICEDo not disassemble the Variable Valve Actuator. There are no components of the Variable Valve Actuator that are serviceable. If the Variable Valve Actuator is disassembled, the warranty will be void.View ImageIllustration 1g06527056(1) Adjustment screw locknutPut the No. 1 piston at the top center position on the compression stroke. Refer to Testing and Adjusting, "Finding Top Center Position for No. 1 Piston".Loosen adjustment screw locknut (1) and back out the adjustment screw until the actuator rod is not in contact with the intake rocker arm.Note:?During this procedure, ensure that the intake rocker arm is in full contact with the valve bridge.Place the appropriate feeler gauge between the actuator rod and the intake rocker arm. Turn the adjustment screw in a clockwise direction. Slide the feeler gauge between the actuator rod and the intake rocker arm. Continue turning the adjustment screw until there is slight drag felt on the feeler gauge. Remove the feeler gauge. Set the clearance to?0.50 ± 0.08 mm?(0.020 ± 0.003 inch).Tighten the adjustment screw locknut to?50 ± 10 N·m?(37 ± 7 lb ft).Recheck the lash setting after the adjustment screw locknut has been torqued.Make the lash setting on the following cylinders: 1, 2 and 4.Remove the timing bolt from the flywheel. Turn the crankshaft clockwise by 360 degrees. This rotation will position the No. 6 piston at the top center on the compression stroke. Install the timing bolt in the flywheel.Repeat Step 6 for the following cylinders: 3, 5 and 6.Remove the timing bolt from the flywheel.Bottom of FormCompression Brake Lash - AdjustSMCS -?1129-025Top of FormTo prevent possible injury, do not use the starter to turn the flywheel.Hot engine components can cause burns. Allow additional time for the engine to cool before measuring valve clearance.This engine uses high voltage to control the fuel injectors.Disconnect electronic fuel injector enable circuit connector to prevent personal injury.Do not come in contact with the fuel injector terminals while the engine is running.The engine valve lash and the injector lash must be within specifications prior to adjusting the lash for the CAT compression brake. Refer to Testing and Adjusting, "Engine Valve Lash - Inspect/Adjust" for the correct procedure for inspection of the engine valve lash. Refer to Testing and Adjusting, "Electronic Unit Injector - Adjust" for the proper procedure for inspection of the injector lash adjustment.Note:?Adjustment of the lash for the CAT compression brake must be performed while the engine is cold. If the engine is warm, allow the engine to cool prior to performing the following adjustments.Note:?The lash is measured between the rod for the CAT compression brake and the exhaust rocker arm. Make all adjustments while the engine is stopped and the exhaust valves are closed.Use the following procedure to adjust the slave piston lash on cylinders 1, 3, and 5:View ImageIllustration 1g01102458Exhaust rocker arm and actuator piston(1) Adjustment screw(2) Adjustment screw locknut(3) Rod for the CAT compression brake(4) Exhaust rocker armPut the No. 1 piston at the top center position on the compression stroke. Refer to Testing and Adjusting, "Finding Top Center Position for No. 1 Piston".Loosen adjustment screw locknut (2) and back out adjustment screw (1) until the CAT Compression Brake rod is not in contact with the exhaust rocker arm.Make sure that the rod for the CAT compression brake is centered in the housing. Set the lash to 0.686 ± 0.050 mm (0.0270 ± 0.0020 inch). Place the appropriate feeler gauge between the rod for the CAT compression brake and the exhaust rocker arm. Turn the adjustment screw in a clockwise direction. Slide the feeler gauge between the rod for the CAT compression brake and the exhaust rocker arm. Continue turning the adjustment screw until a slight drag is felt on the feeler gauge. Remove the feeler gauge.Torque the adjustment screw locknut. Tighten the locknut to 15 ± 3 N·m (11 ± 2 lb ft).Recheck the lash setting after you torque the locknut.Remove the timing bolt and turn the flywheel by 360 degrees in the direction of engine rotation. This will put the No. 6 piston at the top center position on the compression stroke. Install the timing bolt in the flywheel. To adjust the slave piston lash on cylinders 2, 4, and 6, perform Steps 2 through 5.Remove the timing bolt from the flywheel after all adjustments have been performed. Reinstall the timing cover.Bottom of FormTop of FormBottom of FormTop of FormBottom of FormTop of FormBottom of FormTop of FormBottom of Form ................
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