1D-8 Engine Mechanical:
2) Lift down the valve by turning crankshaft to 360°.
3) Hold tappet at that position using special tool as
a) Remove its housing bolts.
b) Check housing No. and select special tool
corresponding to housing No., referring to
"Special tool selection table".
Special tool selection table
No. on camshaft
I3, I4, I5
E3, E4, E5
A: I: Intake side or E: Exhaust side
B: Position from timing chain side
C: Pointing to timing chain side
c) Hold down the tappet so as not to contact the
shim by installing special tool on camshaft
housing with housing bolt (1) tighten housing
bolts by hand.
Embossed mark on special
4) Turn camshaft by approximately 90° clockwise and
remove shim (3).
Never put in the hand between camshaft and
1. Special tool
5) Using a micrometer (2), measure the thickness of
the removed shim (1), and determine replacement
shim by calculating the thickness of new shim with
the following formula and table.
Shim thickness specification
A = B + C – 0.20 mm (0.008 in.)
A = B + C – 0.30 mm (0.012 in.)
A: Thickness of new shim
B: Thickness of removed shim
C: Measured valve clearance
For example of intake side:
When thickness of removed shim is 2.40 mm (0.094
in.), and measured valve clearance is 0.45 mm
A = 2.40 mm (0.094 in.) + 0.45 mm (0.018 in.) – 0.20
mm (0.008 in.) = 2.65 mm (0.104 in.)
Calculated thickness of new shim = 2.65 mm (0.104