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WSG-1068 Engine

The WSG-1068 is a 10-cylinder engine. It powers generator sets from Cummins/Onan, including the GGHH-1514756.

Also known as: WSG-1068

10
Cylinders

Engine specifications

Cylinders10

Generator sets powered by this engine

1
Cummins/Onan GGHH-1514756

Maintenance schedule

ItemSpecCapacityPart #Interval
Oil filter—
OilSuper Premium SAE 5W30 Motor Oil D9AZ-19579-A or equivalent meeting Ford specification WSS-M2C153-GD9AZ-19579-A Amazon

Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.

Service specifications

11
TypeItemValueUnitCondition
OtherMetal surface cleanerF4AZ-19A536-RAFord specification WSE-M5B292-A
OtherSilicone Gasket and SealantF6AZ-19562-AFord specification WSE-M4G323-A6
OtherSilicone gasket and sealantF6AZ-19562-AAFord specification WSE-M4G323-A6; contact within 4 min, torque within 15 min
TorqueCrankshaft rear oil seal retainer plate bolts8-12NmStage 1 (71-107 lb/in)
TorqueCylinder head bolts37-43NmStage 1 (27-32 lb/ft)
TorqueCylinder head bolts85-95degreesStage 2 additional angle
TorqueOil drain plug11-16Nm(98-143 lb/in)
TorqueOil pan bolts2NmStage 1 (18 lb/in)
TorqueOil pan bolts20NmStage 2 (15 lb/ft)
TorqueOil pan bolts60degreesStage 3 additional angle
TorqueOil pan bolts with retainer plate14-20NmStage 2, then additional 90 degrees (10-15 lb/ft)

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Recommended fluids

FluidGradeStandardAmbientCapacityNotes
Engine oilMotorcraft Engine Oil XO-5W30-QSPFord specification WSS-M2C153-Gor equivalent
Engine oilSuper Premium SAE 5W30 Motor Oil D9AZ-19579-AFord specification WSS-M2C153-Gor equivalent

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Procedures

12
Crankshaft Rear Oil Seal (with retainer plate) - Installation installation

⚠ Mating parts must make contact to each other within 4 minutes and connecting bolts must be torqued within 15 minutes after applying sealant.

Tools: Rear Crankshaft Seal Replacer, Rear Crankshaft Seal Adapter, Rear Crankshaft Slinger Replacer

  1. CAUTION: Mating parts must make contact to each other within 4 minutes and connecting bolts must be torqued within 15 minutes after applying sealant.
  2. Use silicone gasket and sealant F6AZ-19562-AA or equivalent meeting Ford specification WSE-M4G323-A6.
  3. Use metal surface cleaner F4AZ-19A536-RA or equivalent meeting Ford specification WSE-M5B292-A.
  4. Apply a bead of silicone around the rear oil seal retainer sealing surface. Use Silicone Gasket and Sealant F6AZ-19562-A or equivalent meeting Ford specification WSE-M4G323-A6.
  5. NOTE: If the rear main oil seal is still in place and being reinstalled, be sure the lip is not folded over or wrinkled during the retainer plate installation. The seal lip must start squarely on the
  6. Position the crankshaft rear oil seal and retainer (6K301), install the bolts. Then install the oil pan and the two bolts. Tighten in two stages.
  7. Stage 1: Tighten retainer plate bolts to 8-12 Nm (71-107 lb/in).
  8. Stage 2: Tighten oil pan bolts to 14-20 Nm (10-15 lb/ft) then tighten an additional 90 degrees.
  9. Use the Rear Crankshaft Seal Replacer and Rear Crankshaft Seal Adapter to install the crankshaft rear oil seal.
  10. With the Rear Crankshaft Seal Adapter still installed, use the Rear Crankshaft Slinger Replacer and Rear Crankshaft Seal Replacer to install the crankshaft oil slinger.
  11. Install the flywheel; refer to Flywheel.
  12. Connect the battery ground cable.
Crankshaft Rear Oil Seal - Installation installation

⚠ Mating parts must make contact to each other within 4 minutes and connecting bolts must be torqued within 15 minutes after applying sealant.

Tools: Rear Crankshaft Seal Replacer, Rear Crankshaft Seal Adapter, Rear Crankshaft Slinger Replacer

  1. CAUTION: Mating parts must make contact to each other within 4 minutes and connecting bolts must be torqued within 15 minutes after applying sealant.
  2. Use silicone gasket and sealant F6AZ-19562-AA or equivalent meeting Ford specification WSE-M4G323-A6.
  3. Use metal surface cleaner F4AZ-19A536-RA or equivalent meeting Ford specification WSE-M5B292-A.
  4. Using the Rear Crankshaft Seal Replacer and the Rear Crankshaft Seal Adapter, install the crankshaft rear oil seal.
  5. With the Rear Crankshaft Seal Adapter still installed, use the Rear Crankshaft Slinger Replacer and the Rear Crankshaft Seal Replacer to install the rear main seal slinger.
  6. Install the flywheel; refer to Flywheel.
  7. Connect the battery ground cable.
Cylinder Head - Installation installation

⚠ Mating parts must make contact to each other within 4 minutes and connecting bolts must be torqued within 15 minutes after applying sealant.

Tools: Lifting Handles

  1. NOTE: Do not turn the crankshaft until otherwise instructed.
  2. Install the head gasket over the dowel pins.
  3. NOTE: Sealant must be removed and area cleaned with solvent.
  4. CAUTION: Mating parts must make contact within 4 minutes and connecting bolts must be torqued within 15 minutes after applying sealant.
  5. Use silicone gasket and sealant F6AZ-19562-AA or equivalent meeting Ford specification WSE-M4G323-A6.
  6. Use metal surface cleaner F4AZ-19A536-RA or equivalent meeting Ford specification WSE-M5B292-A.
  7. Rotate the crankshaft (6303) to position the keyway at 12 o'clock.
  8. NOTE: Head bolts are torque to yield and must be replaced whenever cylinder head is removed.
  9. Install the cylinder head on the head gasket and loosely install new bolts.
  10. NOTE: Be sure to tighten the bolts in three stages.
  11. Stage 1: Tighten to 37-43 Nm (27-32 lb/ft).
  12. Stage 2: Tighten an additional 85 degrees to 95 degrees.
  13. Stage 3: Tighten an additional 85 degrees to 95 degrees.
  14. Install the timing chains; refer to Drive Components.
  15. Install the intake manifold; refer to Intake Manifold - Variable Resonance Induction System (VRIS).
Oil Level Indicator Tube - Installation installation
  1. Follow the removal procedure in reverse order.
  2. Replace and lubricate the O-rings with Super Premium SAE 5W30 Motor Oil D9AZ-19579-A or equivalent meeting Ford specification WSS-M2C153-G.
  3. Replace oil level indicator (oil dipstick).
Oil Pan - Installation installation

⚠ Mating parts must make contact to each other within 4 minutes and connecting bolts must be torqued within 15 minutes after applying sealant.

  1. Install the oil pump screen cover and tube.
  2. CAUTION: Mating parts must make contact to each other within 4 minutes and connecting bolts must be torqued within 15 minutes after applying sealant.
  3. Use silicone gasket and sealant F6AZ-19562-AA or equivalent meeting Ford specification WSE-M4G323-A6.
  4. Use metal surface cleaner F4AZ-19A536-RA or equivalent meeting Ford specification WSE-M5B292-A.
  5. NOTE: Be sure to tighten the bolts in three stages.
  6. Replace oil pan and bolts. Tighten the bolts in the sequence shown.
  7. Stage 1: Tighten to 2 Nm (18 lb/in).
  8. Stage 2: Tighten to 20 Nm (15 lb/ft).
  9. Stage 3: Tighten an additional 60 degrees.
  10. Install oil drain plug 11-16 Nm (98-143 lb/in).
  11. Tighten the front engine support insulators.
  12. Connect the battery ground cable.
  13. Fill the engine with oil. Use Motorcraft Engine Oil XO-5W30-QSP or equivalent meeting Ford specification WSS-M2C153-G.
  14. Fill the cooling system.
Oil Pump - Installation installation
  1. Clean and inspect the mating surfaces.
  2. Position the oil pump and loosely install the bolts. Tighten the bolts in the sequence shown.
  3. Install the oil pan; refer to Oil Pan.
  4. Install the timing chain (6268); refer to Timing Drive Components.
  5. Connect the battery ground cable.
Crankshaft Rear Oil Seal (with retainer plate) - Removal repair

Tools: Rear Crankshaft Slinger Remover, Impact Slide Hammer, Rear Crankshaft Seal Remover

  1. Disconnect the battery ground cable (14301).
  2. Remove the flywheel (6375); refer to Flywheel.
  3. Use the Rear Crankshaft Slinger Remover and the Impact Slide Hammer to remove the crankshaft oil slinger (6310).
  4. Use the Rear Crankshaft Seal Remover and the Impact Slide Hammer to remove the crankshaft rear oil seal (6701).
  5. Remove the oil pan; refer to Oil Pan.
  6. Remove the crankcase bolts and the crankshaft rear oil seal retainer plate.
Crankshaft Rear Oil Seal - Removal repair

Tools: Rear Crankshaft Slinger Remover, Slide Hammer, Rear Crankshaft Seal Remover, Impact Slide Hammer

  1. Disconnect the battery ground cable (14301).
  2. Remove the flywheel (6375); refer to Flywheel.
  3. Use the Rear Crankshaft Slinger Remover and the Slide Hammer to remove the crankshaft oil slinger (6310).
  4. Use the Rear Crankshaft Seal Remover and the Impact Slide Hammer to remove the crankshaft rear oil seal (6701).
Cylinder Head - Removal repair

⚠ DO NOT SMOKE OR CARRY LIGHTED TOBACCO OR OPEN FLAME OF ANY TYPE WHEN WORKING ON OR NEAR ANY FUEL-RELATED COMPONENTS. HIGHLY FLAMMABLE MIXTURES ARE ALWAYS PRESENT AND CAN BE IGNITED, RESULTING IN POSSIBLE PERSONAL INJURY.

⚠ These bolts must be replaced with new bolts. They are tighten-to-yield designed and cannot be reused.

Tools: Lifting Handles

  1. Remove the intake manifold (9424); refer to Intake Manifold - Variable Resonance Induction System (VRIS).
  2. Remove the timing chains (6268); refer to Timing Drive Components.
  3. Compress and slide the hose clamp back and remove the evaporation water hose (18472) if equipped.
  4. Install the Lifting Handles.
  5. CAUTION: These bolts must be replaced with new bolts. They are tighten-to-yield designed and cannot be reused.
  6. Remove the bolts and the cylinder head (6049).
  7. Discard the head gasket (6051), the cylinder head bolts (6049) and clean the engine block surface.
  8. The LH is shown. The RH is similar.
Engine - Disassembly repair

⚠ Unless otherwise instructed, at no time when the timing chains are removed and the cylinder heads are installed is the crankshaft or camshaft to be rotated. Severe piston and valve damage will occur.

⚠ Make sure connecting rods and rod caps are numbered, to keep in proper orientation.

⚠ Do not scratch the cylinder walls or the crankshaft journals with the connecting rod.

Tools: Crankshaft Damper Remover, Front Cover Seal Remover, Crankshaft Holding Tool, Camshaft Holding Tools, Lifting Handles

  1. With the engine on the engine stand, remove the engine wiring harness.
  2. Remove the oil pan (6675), oil pan gasket (6710), and oil pump screen cover and tube (6622).
  3. Loosen the sixteen valve cover bolts; remove the valve cover gasket (6584).
  4. Remove the drive belt, water pump pulley (8509), water pump bolts, and water pump (8501).
  5. Remove the crankshaft pulley bolt (6A340) and crankshaft pulley (6312) using the Crankshaft Damper Remover.
  6. Remove the crankshaft front seal (6700) using the Front Cover Seal Remover.
  7. Remove the engine front cover fasteners and engine front cover (6019) from the dowels (6C002).
  8. Remove the crankshaft sensor ring, balancing shaft bearing caps, and balancing shaft.
  9. Position the crankshaft with the Crankshaft Holding Tool; install Camshaft Holding Tools.
  10. Remove the timing chain tensioners (6L266) and tensioner arms (6L253).
  11. Remove the timing chains and crankshaft sprockets; remove the timing chain guides (6K297).
  12. Remove the exhaust manifolds (9430) and gaskets (9448).
  13. Remove the oil level dipstick, bolt, and oil level indicator tube (6754); install Lifting Handles.
  14. Remove the cylinder head bolts, cylinder head, and head gasket (6051); clean the engine block surface.
  15. Remove the engine mounts, oil filter adapter (6881), oil pump (6600), lower bearing supports, connecting rod caps, pistons and rods, main bearing caps, and bearings (6333).
Engine - Removal repair

Tools: Modular Lifting Bar, Rear Crankshaft Slinger Remover, Impact Slide Hammer, Rear Crankshaft Seal Remover

  1. Disconnect the battery ground cable (14301).
  2. Remove the intake manifold (9424); refer to Intake Manifold - Variable Resonance Induction System (VRIS).
  3. Remove the radiator upper and lower radiator supports (16138).
  4. Remove the radiator (8005), fan shroud (8146) and engine cooling fan.
  5. Remove the drive belt (8620); refer to Section 05.
  6. At the oil cooler water inlet, disconnect and set aside the lower radiator hose (8286).
  7. Disconnect the engine harness.
  8. Remove exhaust pipe nuts.
  9. Drain engine oil and remove the oil bypass filter (6714).
  10. Remove the starter motor (11002); refer to Section 07.
  11. Remove the engine support insulator nuts.
  12. Install the Modular Lifting Bar.
  13. Remove the engine from the equipment.
  14. Remove the bolts, and remove the flywheel. Use the Rear Crankshaft Slinger Remover and the Impact Slide Hammer to remove the crankshaft oil slinger (6310). Use the Rear Crankshaft Seal Remover and the
  15. Mount the engine on an engine stand. Remove the Modular Lifting Bar.
Exhaust Manifold - LH - Removal repair
  1. Remove the nuts from the exhaust pipe and remove pipe.
  2. Remove the exhaust manifold nuts and the exhaust manifold (9430). Discard the exhaust manifold gaskets (9448).
  3. Clean and inspect the exhaust manifold; refer to Section 01.

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Common questions

Which generators use the WSG-1068 engine?

The WSG-1068 powers 1 generator set(s), including Cummins/Onan GGHH-1514756.