Toyota 4-Runner 1985 Repair Manual page 90

ENGINE MECHANICAL - Cylinder Block EM-61
Mark ---~
Compression Oil Ring
Ring No.1 and /-_~~==:-
. . . . .
Lower Side Rail
Expander
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Front. ',' " :
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Oil Ring .... - /' Compression
Upper Side Rail Ring No.2
GENERAL ASSEMBLY NOTE:
Thoroughly clean all parts to be assembled. Before installing
parts, app\y
new engine oi\ to a\\ s\\d\ng and Totat\ng
SUftdC.~b.
ASSEMBLY OF PISTON AND CONNECTING
ROD ASSEMBLY
1 . ASSEMBLY PISTON AND CONNECTING ROD
(a) Install a new snap ring on one side of the piston pin
hole.
(b) Heat the piston in hot water to about 80°C (176°F).
(c) Align the notch on the piston with the mark on the
rod and push the piston pin in with your thumb.
(d) Install a new snap ring on the other side of the pin.
2. PLACE RINGS ON PISTON
(a) Using a ring expander, install the top two compres-
sion rings with the code marks facing upward.
(b) Position the piston rings so that the ring end gaps are
in the shaded area as shown.
CAUTION:
Do not align the
end
gaps.
3. INSTAll BEARING INSERTS
(a) Install the bearing inserts in the connecting rods and
rod caps.
(b) Lubricate the face of the bearings with engine oil.