Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Celica 1988-1989.1993-1994.2000 Approved Toyota Celica 1993 ADJUSTME

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ADJUSTME


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                                D - ADJUSTMENTS - 4-CYL

                                      1993 Toyota Celica




         1993 ENGINE PERFORMANCE
         Toyota 4-Cylinder On-Vehicle Adjustments

         Celica

    ENGINE MECHANICAL
         Before performing any on-vehicle adjustments to fuel or
ignition systems, ensure engine mechanical condition is okay.

    VALVE CLEARANCE
NOTE:    Adjust valve clearance with engine cold.

NOTE:    If valve cover uses grommets below retaining nuts or bolts,
         keep grommets in order so they are installed in original
         locations during reassembly.

         1) Remove valve cover(s) and gasket(s). Rotate crankshaft so
timing mark on crankshaft pulley aligns with "0" mark on front cover
and cylinder No. 1 (front cylinder) is at TDC of compression stroke.
         2) Ensure valves on cylinder No. 1 are closed. With cylinder
No. 1 at TDC, check clearance on specified valves. See VALVE CLEARANCE
ADJUSTMENT SEQUENCE table. See Fig. 1.




Fig. 1: Valve Arrangement ID
Courtesy of Toyota Motor Sales, U.S.A., Inc.

         3) Using feeler gauge, measure and record clearance between
valve lifter and camshaft. Ensure valve clearance is within
specification. See VALVE CLEARANCE SPECIFICATIONS table.
         4) To check remaining valves, rotate crankshaft 360 degrees
(one full revolution) until cylinder No. 4 is at TDC of compression
stroke. Measure valve clearance on specified valves. See VALVE
CLEARANCE ADJUSTMENT SEQUENCE table.
         5) If valve clearance requires adjustment, rotate crankshaft
so camshaft lobe on valve to be adjusted is facing upward, away from
valve lifter. Rotate valve lifter so notch on valve lifter is toward
spark plug.
         6) Press valve lifter downward using Valve Clearance Adjuster
(SST 09248-55020) and SST (A). See Fig. 2. Install SST (B) between
camshaft and valve lifter. Remove SST (A).
         7) Using small screwdriver and magnet, remove adjusting shim.
Measure thickness of adjusting shim removed. Using measured clearance
and adjusting shim thickness, determine correct thickness of adjusting
shim to be used. Shim thickness can be determined by using the
following formula: N = T + A.

           *     N = Thickness of adjuster shim required.
           *     T = Thickness of adjuster shim removed.
           *     A = Measured clearance minus valve clearance specification.

                     See appropriate SHIM THICKNESS table for proper shim
required.

NOTE:            Before installing valve cover gasket, apply sealant at
                 camshaft bearing caps-to-cylinder head surfaces where valve
                 cover gasket seals.

         8) Install valve cover and gasket. Reverse removal procedure
to install remaining components.




Fig. 2: Removing Valve Clearance Adjusting Shim
Courtesy of Toyota Motor Sales, U.S.A., Inc.

VALVE CLEARANCE ADJUSTMENT SEQUENCE TABLE



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