Cylinder Head
Camshaft
The camshaft is a cast piece. By improving dimensional accuracy, it became possible to achieve minimum space be-
tween cams, thus allowing a more compact cylinder head. Each camshaft is supported on four bearing journals with forc-
ed lubrication. On the right end of each camshaft is a driven pulley. The exhaust and intake cycles require a total of 36
cam lobes to open and close the valves.
FRONT BANK
No. 6 No. 5 No. 4
S M P S M P S M P
P M S P M S P M S
EXHAUST INTAKE
S M P S M P S M P
P M S P M S P M S
REAR BANK
No. 3 No. 2 No. 1
No. 3 No. 2 No. 1No. 6 No. 5 No. 4
INTAKE EXHAUST
P: PRIMARY
M:MID
S: SECONDARY
: Intake valve open
: Exhaust valve openManual Transmission
Automatic Transmission
Low-speed valve timing High-speed valve timing
Camshaft
The camshaft is a cast piece. By improving dimensional accuracy, it became possible to achieve minimum space be-
tween cams, thus allowing a more compact cylinder head. Each camshaft is supported on four bearing journals with forc-
ed lubrication. On the right end of each camshaft is a driven pulley. The exhaust and intake cycles require a total of 36
cam lobes to open and close the valves.
FRONT BANK
No. 6 No. 5 No. 4
S M P S M P S M P
P M S P M S P M S
EXHAUST INTAKE
S M P S M P S M P
P M S P M S P M S
REAR BANK
No. 3 No. 2 No. 1
No. 3 No. 2 No. 1No. 6 No. 5 No. 4
INTAKE EXHAUST
P: PRIMARY
M:MID
S: SECONDARY
: Intake valve open
: Exhaust valve openManual Transmission
Automatic Transmission
Low-speed valve timing High-speed valve timing