Engine Body; Cylinder Block; Half-Floating Head Cover - wsm wg972-e4 Workshop Manual

WG972-E4, WSM

1. ENGINE BODY

[1] CYLINDER BLOCK

[2] HALF-FLOATING HEAD COVER

The engine has a high durability tunnel-type cylinder
block in which the crank bearing component is a
constructed body. Furthermore, liner less type, allow
effective cooling, less distortion, and greater wear
resistance. The noise level is reduced to a minimum
because each cylinder has its own chamber.
To increase the rigidity of the cylinder block, parts of
engine block which support main bearing case has
thicker rib for additional rigidness to improve noise and
vibration.
The rubber packing is fitting in to keeping the head
cover 0.5 mm (0.02 in.) or so off the cylinder head. This
arrangement helps reduce noise coming from the
cylinder head.
(1) Cylinder Head Cover
1-M1
ENGINE
9Y1211108ENM0001US0
(2) Rubber Packing
9Y1211108ENM0002US0
KiSC issued 07, 2015 A