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Home >> Mitsubishi >> 1990 >> Precis Base, Automatic >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 1.5L 4-CYL - VINS [A,J,X] & 1.6L 4-CYL - VIN [Y] >> Removal & Installation >> Timing Belt >> Installation (1.6L)

Installation (1.6L)

  1. Install rear timing belt covers, spacer, flange, crankshaft sprocket, washer, and retaining bolts. Install flange and crankshaft sprocket in proper orientation. See Fig 1.
  2. Install camshaft sprockets. Tighten retaining bolts to specification while holding hexagonal area of camshaft. See TORQUE SPECIFICATIONS . Install idler pulley.
    Fig 1: Installing Flange & Crankshaft Sprocket (1.6L)
    G90I08788Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  3. Push automatic tensioner rod into tensioner housing. If plug at bottom of tensioner housing protrudes past housing, place a washer over plug to prevent plug from contacting vise when pushing rod into tensioner housing.
  4. Place tensioner assembly in a soft-faced vise. Press rod back into automatic tensioner in small increments until both rod and housing holes are aligned. See Fig 2. Insert a .055" (1.4 mm) diameter wire into holes.
    Fig 2: Retracting Automatic Tensioner Rod (1.6L)
    G90A08789Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  5. Remove automatic tensioner from vise. Install assembly with wire installed. Install tensioner arm. Install tensioner pulley onto tensioner arm, ensuring pin hole of tensioner pulley shaft is to left of center bolt. See Fig 3. Tighten center bolt.
  6. Rotate camshaft sprockets so dowel pins face up, and timing marks on sprockets align. See Figure. Outer marks on sprockets should be aligned with cylinder head surface.
    Fig 3: Installing Tensioner Pulley (1.6L)
    G90C08790Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  7. When exhaust camshaft sprocket is released, camshaft will rotate one tooth in counterclockwise direction. When installing timing belt, compensate for rotation.
  8. Rotate crankshaft to align timing marks on crankshaft and oil pump sprockets. If installing old timing belt, install it in original direction of rotation.
  9. Install timing belt onto tensioner pulley and crankshaft sprocket. Hold belt in place using left hand. Pull belt around oil pump sprocket. Pull belt around idler pulley.
  10. Install timing belt around intake camshaft sprocket. Ensure exhaust timing mark on camshaft sprocket aligns with cylinder head surface. See Figure. Using both hands, install timing belt around exhaust camshaft sprocket.
  11. Rotate tensioner pulley toward timing belt until belt does not sag. Temporarily tighten center bolt on tensioner pulley. Ensure all timing marks are aligned.
  12. To adjust belt tension, rotate crankshaft 1/4 turn counterclockwise, and then rotate clockwise until No. 1 cylinder is at TDC. Loosen center bolt on tensioner pulley.
  13. To rotate tensioner pulley, install Socket Wrench (MD998752) into pin holes offset from center of pulley. Using INCH lbs. torque wrench and socket wrench, apply torque of 23-25 INCH lbs. (2.6-2.8 N.m) to tensioner pulley. With torque applied to tensioner pulley, tighten tensioner pulley center bolt to 29-41 ft. lbs. (40-55 N.m).
    NOTE: If engine is in vehicle, it may be necessary to jack up engine slightly for clearance.
  14. Thread Set Screw (MD998738) into left engine support bracket until screw end contacts tensioner arm. See Fig 4. Turn set screw farther until wire can be removed from automatic tensioner. Remove set screw.
    Fig 4: Removing Lock Wire From Timing Belt Auto. Tensioner (1.6L)
    G90E08791Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  15. Rotate crankshaft clockwise 2 complete revolutions, and leave it in this position for approximately 15 minutes. After 15 minutes, measure distance between tensioner arm and automatic tensioner body (automatic tensioner rod extension). Distance should be .15-.18" (3.8-4.5 mm). Repeat steps  12- 15 until correct distance is obtained.
  16. An alternative method can be used if engine is in vehicle, or distance cannot be measured because of lack of clearance. Install Set Screw (MD998738) until it contacts tensioner arm.
  17. Turn set screw inward, counting number of turns until tensioner arm contacts tensioner housing. Set screw should rotate 2 1/2 - 3 turns inward if belt tension is correct. Repeat steps  12- 17 until correct number of turns is obtained.
  18. Remove set screw. Install rubber plug into rear timing belt cover. To complete installation, reverse removal procedure. Apply sealant to appropriate areas on packing and rocker cover before installation. See Figure. Install timing belt cover bolts into proper locations. See Fig 5.
Fig 5: Installing Timing Belt Cover Bolts (1.6L)
G90G08792Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
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