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Home >> Mitsubishi >> 1985 >> Montero Base >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 2.6L 4-CYL - VIN [E] & 2.6L 4-CYL Turbo - VINS [H,N] >> Removal & Installation >> Valve Clearance Adjustment

Valve Clearance Adjustment

  1. Ensure timing marks on camshaft sprocket and chain are aligned. With head assembly installed, adjust valves in 1-3-4-2 cylinder sequence, according to following procedure.
  2. At TDC on compression stroke, for cylinder being adjusted, loosen rocker arm nuts. Turn adjusting screw to adjust valve clearance to specification.
  3. Complete engine assembly and temporarily install rocker cover. Warm engine until coolant temperature is 170-180°F (77-82°C). With piston at TDC on compression stroke, back intake valve adjusting screw off 2 or more turns.
  4. Adjust jet valve clearance, intake valve clearance, and finally exhaust valve clearance. Assure that all adjusting screw lock nuts are securely tightened.
NOTE: Jet valve spring is comparatively weak and must not be forced in when making adjustment. Final valve clearance should be adjusted after cylinder head bolts have been tightened to specification.
VALVE CLEARANCE

Application Cold In. (mm) Hot In. (mm)
Intake .003 (.07) .006 (.15)
Exhaust .007 (.17) .010 (.25)
Jet Valve .007 (.17) .010 (.25)
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