Toyota Supra 1990 Manual page 45

ENGINE MECHANICAL - Engine Tune-Up
6. REMOVE IGNITION COIL COVER
(a) Remove the oil filler cap.
EM-13
(b) Remove the five nuts and ignition coil cover.
7.
REMOVE IGNITION COIL WITH BRACKET
(a)
(b)
(c)
(d)
(e)
Disconnect the connector and ground strap.
Remove the nut.
Remove the No.1 and No.2 high-tension cords from
ignition coil and clamp.
Remove the ignition coil with bracket and high-tension
cords.
Remove the No.1 and No.2 high-tension cords from
spark plugs.
8.
REMOVE CYLINDER HEAD COVERS
(a) Remove the accelerator link.
(b) Disconnect the No.3
PCV
hose.
(c) Remove the cylinder head covers.
9.
MEASURE VALVE CLEARANCE
(See step 5 on pages EM-8, 9)
10. ADJUST VALVE CLEARANCE
(See step 6 on pages EM-9, 10)
11. RECHECK VALVE CLEARANCE
12. INSTALL CYLINDER HEAD COVERS
(See step 4 on pages EM-55, 56)
13. INSTALL IGNITION COIL WITH BRACKET
(a) Install the No.1 and No.2 high-tension cords to spark
plugs.
(b) Install the ignition coil with bracket and high-tension
cords.
(See page IG-13)
(c) Install the No.1 and No.2 high-tension cords to igni-
tion coil and clamp.