Toyota Celica 1993 Service Manual page 37

end of cylinder head, located on exhaust camshaft side of cylinder
head. Before installing gasket and valve cover, apply sealant at front
and rear valve cover areas on cylinder head. See Fig. 3.
12) Using NEW gasket, install valve cover. Install grommets
in original location with marking on grommet in aligned in designated
area. See Fig. 4. Install and tighten valve cover nuts to
specification. See TORQUE SPECIFICATIONS.
13) If installing distributor, install NEW "O" ring on
distributor. Coat "O" ring with engine oil. Rotate crankshaft
clockwise so cylinder No. 1 is at TDC on compression stroke. Cylinder
No. 1 is front cylinder at timing belt end of engine.
14) Ensure slot area on intake camshaft is vertically
positioned. Rotate cutout on coupling so it is aligned with alignment
mark on distributor housing. See Fig. 26.
15) Install distributor so center of flange on distributor is
aligned with bolt hole on cylinder head. Install distributor hold-down
bolts. Adjust ignition timing.
BALANCE SHAFTS (CAMRY)
NOTE: Following procedure must be used when servicing balance
shaft assembly with engine in the vehicle. Perform
preliminary inspection before removing balance shaft
assembly to ensure proper gear backlash exists. If balance
shaft assembly is being serviced with engine removed from
vehicle and cylinder block inverted (oil pan area facing
upward) special procedure must be used. See BALANCE SHAFTS
(CAMRY) under OVERHAUL.
Preliminary Inspection
1) Remove oil pan. See OIL PAN under REMOVAL & INSTALLATION.
Gear backlash between crankshaft gear and No. 1 balance shaft must be
checked. Gear backlash varies with rotation of No. 1 balance shaft
gear and crankshaft gear. Gear backlash must be checked with
crankshaft gear and No. 1 balance shaft gear at 4 different points.
2) Rotate crankshaft 3 full revolutions to ensure proper
seating of all gears. Rotate crankshaft clockwise so cylinder No. 1 is
at TDC on compression stroke. Cylinder No. 1 is front cylinder at
timing belt end of engine.
3) Ensure timing mark on crankshaft pulley aligns with "0"
mark on timing belt cover. Ensure punch mark "C" on both balance
shafts align with grooves on housing of balance shaft assembly.
Perform STEP 1. See Fig. 40.