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Home >> Jeep >> 1990 >> Cherokee Base, 2D Utility, 2.5 E, 4WD, Automatic >> Repair and Diagnosis >> Engine Performance >> Remove, Overhaul & Install >> Engine Controls - Remove/Install/Overhaul >> Ignition System >> Distributor R & I (4.2L & 5.9L) >> Installation (Engine Rotated After Removal)
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Installation (Engine Rotated After Removal)

  1. Clean distributor mounting area of cylinder block. Install a replacement distributor gasket. Remove No. 1 spark plug and hold finger over spark plug hole. Rotate engine until compression pressure is felt.
  2. Slowly continue to rotate engine until timing index on vibration damper pulley aligns with TDC mark on timing degree scale. Reinstall spark plug and tighten to 27 ft. lbs. (37 N.m). Turn distributor shaft until rotor tip points in direction of No. 1 terminal in distributor cap. Turn rotor 1/8 turn counterclockwise past No. 1 terminal.
  3. Slide distributor shaft into engine and position distributor vacuum advance mechanism housing in approximately the same location (in relation to other engine components) as when removed.
  4. Align scribe mark on distributor housing with corresponding scribe mark on cylinder block. It may be necessary to rotate oil pump shaft with a long, flat blade screwdriver to engage oil pump drive tang, but rotor should align with position No. 1 terminal when distributor shaft is in place. Install distributor hold-down bolt and clamp. Tighten bolt to 17 ft. lbs. (23 N.m). Install distributor cap.
    CAUTION: If distributor cap is incorrectly positioned on distributor housing, cap or rotor may be damaged when engine is rotated with starter.
  5. Ensure pick-up coil wire rubber grommet in distributor housing aligns with depression in distributor cap and that cap fits on rim of housing.
    NOTE: Two different diameter screws are used to retain distributor cap.
  6. Apply silicone dielectric compound to connector terminal blades and cavities. Connect distributor primary wiring connector. Connect vacuum hose to vacuum advance mechanism.
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