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stin1974
stin1974, Nissan Mechanic
Category: Nissan
Satisfied Customers: 765
Experience:  16 years experiancs in Transmissions and General Repair
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How do I replace the the timing belt on a 1997 Nissan Pathfinder

Resolved Question:

How do I replace the the timing belt on a 1997 Nissan Pathfinder
Submitted: 7 years ago.
Category: Nissan
Expert:  stin1974 replied 7 years ago.
model LE, SE or XE and what motor?
Customer: replied 7 years ago.
Se V-6
Expert:  stin1974 replied 7 years ago.
Service and Repair
Notes

CAUTION:

  1. Do not bend or twist the timing belt.
  2. After removing timing belt, do not turn crankshaft and camshaft separately because valves will strike piston heads.
  3. Make sure that timing belt, camshaft sprocket, crankshaft sprocket and belt tensioner are clean and free from oil and water.
  4. Installation should be carried out when engine is cold.



REMOVAL

  1. Remove engine under cover.
  2. Drain engine coolant from radiator. Be careful not to spill coolant on drive belts.
  3. Remove radiator.
  4. Remove engine cooling fan and water pump pulley.
  5. Remove the power steering pump belt, the compressor drive belt and the alternator belt.
  6. Remove all spark plugs.
  7. Remove distributor protector.
  8. Remove compressor drive belt idler bracket.
  9. Remove fresh-air intake tube for rocker cover.
  10. Remove water hose for thermostat housing.
  11. Remove crankshaft pulley bolt.
  12. Remove crankshaft pulley with a suitable puller.
  13. Remove front upper and lower belt covers.

Timing Marks

  1. Set No. 1 piston at TDC on its compression stroke by rotating crankshaft.
  2. Align punchmark on LH camshaft sprocket with punchmark on timing belt upper rear cover.
  3. Align punchmark on crankshaft sprocket with notch on oil pump housing.
  4. Temporarily install crank pulley bolt on crankshaft so that crankshaft can be rotated.

  1. Loosen timing belt tensioner nut, turn tensioner, then remove the timing belt.



INSPECTION

  • Visually check the condition of timing belt.
  • Check the belt tensioner and tensioner spring.
  • Replace if any abnormality is found.

BELT TENSIONER AND TENSIONER SPRING

  1. Check belt tensioner for smooth turning.
  2. Check condition of tensioner spring.

INSTALLATION

  1. Confirm that No. 1 piston is set at TDC on its compression stroke.

  1. Install tensioner and tensioner spring. If the stud is ever removed, apply locking sealant to threads of stud on cylinder block side before installing.

  1. Turn tensioner fully outward with hexagon wrench, and temporarily tighten lock nut.

  1. Set the timing belt when engine is cold. Align white lines on the timing belt with punchmarks on the camshaft/crankshaft sprockets and point the arrow on timing belt toward front belt cover. NOTE: The number of timing belt teeth is 133 . The number of timing belt teeth between the LH and RH camshaft sprockets is 40 and the number of teeth between LH camshaft sprocket and crankshaft timing sprocket is 43 .

  1. Loosen tensioner lock nut, keeping tensioner steady with hexagon wrench.
  2. Turn tensioner 70 to 80 degrees clockwise with hexagon wrench, and temporarily tighten lock nut.
  3. Turn crankshaft clockwise at least 2 times, then slowly set No. 1 piston at TDC on its compression stroke.

  1. Push middle of timing belt between RH camshaft sprocket and tensioner pulley with force of 98 N (22 lb).
  2. Loosen tensioner lock nut, keeping tensioner steady with hexagon wrench.

  1. As shown, set a feeler gauge 0.35 mm (0.0138 in.) thick and 12.7 mm (0.500 in.) wide at the lower point where the tensioner and timing belt meet.

  1. Turn crankshaft clockwise until feeler gauge is positioned as shown. The timing belt will move about 2.5 teeth.
  2. Tighten tensioner lock nut, keeping tensioner steady with hexagon wrench.
  3. Turn crankshaft clockwise or counterclockwise, and remove feeler gauge.
  4. Turn crankshaft clockwise at least 2 times, then slowly set No. 1 piston at TDC on its compression stroke.

  1. Install the lower and upper belt covers.
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