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Home >> Mitsubishi >> 1991 >> Precis Base, Standard >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 1.5L 4-CYL - VINS [A,J,X] & 1.6L 4-CYL - VIN [Y] >> Engine Specifications >> Cylinder Head Specifications

Cylinder Head Specifications

CYLINDER HEAD

Application In. (mm)
1.5L (Except Precis)
Cylinder Head Height 4.209-4.217 (106.90-107.10)
Maximum Warpage (1) .002 (.05)
Valve Seats
Intake Valve
Seat Angle 44°
Seat Width .035-.051 (.90-1.30)
Exhaust Valve
Seat Angle 44°
Seat Width .035-.051 (.90-1.30)
Valve Guides
Valve Guide Installed Height .670 (17.00)
Intake Valve
Valve Stem-To-Guide Oil Clearance
Standard .0008-.0020 (.020-.050)
Service Limit .004 (.10)
Exhaust Valve
Valve Stem-To-Guide Oil Clearance
Standard .0020-.0035 (.050-.090)
Service Limit .0059 (.150)
1.5L (Precis)
Maximum Warpage (1) .002 (.05)
Valve Seats
Intake Valve
Seat Angle 45°
Seat Width .035-.051 (.90-1.30)
Exhaust Valve
Seat Angle 45°
Seat Width .035-.051 (.90-1.30)
Valve Guides
Valve Guide Installed Height .539-.563 (13.7-14.3)
Intake Valve
Valve Stem-To-Guide Oil Clearance
Standard .0012-.0024 (.030-.060)
Service Limit .004 (.10)
Exhaust Valve
Valve Stem-To-Guide Oil Clearance
Standard .0020-.0035 (.050-.090)
Service Limit .0059 (.150)
1.6L
Minimum Cylinder Head Height 5.1929 (131.90)
Maximum Warpage (1) .002 (.05)
Valve Seats
Intake Valve
Seat Angle 44°
Seat Width .035-.051 (.90-1.30)
Exhaust Valve
Seat Angle 44°
Seat Width .035-.051 (.90-1.30)
Valve Guides
Valve Guide Installed Height .768 (19.5)
Intake Valve
Valve Stem-To-Guide Oil Clearance
Standard .0008-.0019 (.020-.047)
Service Limit .004 (.10)
Exhaust Valve
Valve Stem-To-Guide Oil Clearance
Standard .0020-.0033 (.050-.085)
Service Limit .0059 (.150)
(1) If deck warpage exceeds specification, machine surface. DO NOT remove more than a combined total of .008" (.20 mm) material from original surfaces of cylinder head and cylinder block.