Mitsubishi S12A2 - Inner Ball Bearing - Insert; Outer Ball Bearing - Insert; Tension Pulley - Assemble; Tension Pulley - Insert

10-16
Chapter 10 COOLING SYSTEM
2.1.2 Tension pulley - Assemble
(1) Apply engine oil to the fitting faces of bearing and ten-
sion pulley.
(2) Fabricate a special press-fitting jig. Fit the bearing in
the tension pulley using the jig and a hand-press.
Note: The bearing is a grease-filled type. Do not wash the
bearing.
Inner ball bearing - Insert
(3) Fit the inner ball bearing onto the bracket using a hand-
press.
Tension pulley - Insert
(4) Install the spacer.
(5) Screw two bolts into the extracting bolt holes in the
bracket from the inside to hold the tension pulley
lightly.
Spacer and Bolt - Install
(6) Fit the outer ball bearing into the tension pulley using
the special jig and a hand-press.
Outer ball bearing - Insert
Special jig
Bearing
Unit: mm [in.]
Tension pulley
ø78 [3.07]
54
[2.13]
ø38
[1.5]
Special jig
Bracket
Bolt
M12×1.25 (2 pcs.)
Spacer
Special jig