Mitsubishi S12A2 User Manual

10-21
Chapter 10 COOLING SYSTEM
2.3 Tension Pulley - Disassemble and Inspect (Water pump side PTA2 spec)
Tension Pulley - Disassemble and Inspect (Water pump side PTA2 spec)
2.3.1 Tension Pulley - Inspect
Measure the bearing fit in tension pulley and on shaft. If abnormal wear or damage is shown, replace the bearing, pulley or ten-
sion bracket.
Belt groove wear
Replace
Rotation
Lip surface wear,
flaw, deterioration
Crack, flaw,
deflection of shaft,
oil hole clogging
PTA2 spec
1
2
3
4
5
6
7
8
9
Disassembling Sequence
1 Bearing cover
2 Snap ring
3 Ball bearing
4 Plain washer
5 Ball bearing
6 Tension pulley
7 Oil seal
8 Oil seal sleeve
9 Bracket
Item Standard value Standard value
Inside diameter of tension pulley bearing fit ø90 [3.54] 89.972 to 89.994 mm [3.5422 to 3.5431 in.]
Bearing
Outside diameter ø90 [3.54] 89.985 to 90.000 mm [3.5427 to 3.5433 in.]
Inside diameter ø40 [1.57] 39.988 to 40.000 mm [1.5743 to 1.5748 in.]
Outside diameter of bracket bearing fit ø40 [1.57] 39.984 to 40.000 mm [1.5742 to 1.5748 in.]

Mitsubishi S12A2 Specifications

General

Brand	Mitsubishi
Model	S12A2
Category	Engine
Language	English