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HOMESERVICE MANUALSNISSAN-DATSUN2003FRONTIER BASE, STANDARDREPAIR AND DIAGNOSISENGINE MECHANICALENGINE MECHANICAL (KA24DE)TIMING CHAININSTALLATIONLOWER TIMING CHAIN
2003 Nissan-Datsun Frontier Base, Standard

Lower Timing Chain

2003 Nissan-Datsun Frontier Base, StandardSECTION Lower Timing Chain
  1. Install crankshaft sprocket.
    • Make sure that the mating marks of crankshaft sprocket face the front of the engine.
      Fig 1: Identifying Crankshaft Sprocket Installing Position (Lower Timing Belt)
      G02102252Courtesy of NISSAN MOTOR CO., U.S.A.
  2. Install the idler sprocket and lower timing chain using the mating marks and the paint marks made during the removal process.
    CAUTION: Be careful not to tear or damage the cylinder head gasket.
  3. Install the chain guide and the chain tension arm.
    Fig 2: Installing Chain Guide And Chain Tension Arm
    G02102253Courtesy of NISSAN MOTOR CO., U.S.A.
  4. Install the lower chain tensioner and remove the pin securing the piston in the tensioner body.
  5. Install the front cover and oil seal.
    • Using a scraper or other suitable tool remove all traces of liquid gasket from the cylinder block and front cover mating surfaces.
    • Install a new crankshaft seal in the front cover.
    • Apply a continuous bead of Genuine Silicone RTV Sealant or equivalent, to the front cover. Refer to , "Recommended Fluids and Lubricants".
      Fig 3: Installing Crankshaft Seal In Front Cover
      G02102254Courtesy of NISSAN MOTOR CO., U.S.A.
    • Install a new front oil seal using a suitable tool. Refer to "FRONT OIL SEAL ".
      Fig 4: Installing Front Oil Seal Using Tool
      G02102255Courtesy of NISSAN MOTOR CO., U.S.A.
    • Apply Genuine Silicone RTV Sealant on the head gasket surface. Refer to "RECOMMENDED CHEMICAL PRODUCTS AND SEALANTS ".
    • Install the front engine cover.
  6. Install oil strainer and oil pan. Refer to "INSTALLATION ".
  7. Install the oil pump and distributor drive shaft.
    • Make sure the flat side of the distributor drive shaft is facing the engine. Failure to do so will result in the distributor being out of time.
  8. Install the crankshaft pulley and crankshaft pulley bolt. Refer to "REMOVAL AND INSTALLATION ".
    Fig 5: Locating Distributor Drive Shaft Flat Side
    G02102256Courtesy of NISSAN MOTOR CO., U.S.A.
  9. If installed, remove Tool.

    Tool number: - (J-45499) 

    Fig 6: Removing Tool (J-45499)
    G02102257Courtesy of NISSAN MOTOR CO., U.S.A.
  10. Install the rear plate.

    Rear plate bolts 

    10 mm hex: 3 - 4 N.m (0.3 - 0.4 kg-m, 32 - 35 in-lb) 

    14 mm hex: 16 - 22 N.m (1.6 - 2.2 kg-m, 12 -16 ft-lb) 

    Fig 7: Installing Rear Plate
    G02102258Courtesy of NISSAN MOTOR CO., U.S.A.
  11. Install the A/C compressor and idler pulley bracket. Refer to "REMOVAL AND INSTALLATION FOR COMPRESSOR ".
  12. Install the radiator shroud and cooling fan with coupling. Refer to "REMOVAL AND INSTALLATION ".
  13. Install the A/C compressor, generator, and power steering pump drive belts. Refer to , "Checking Drive Belts".
  14. Install the intake air duct.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.