11-28
CAMSHAFT
12638
● Disassembly sequence
1 Bolt
2 Camshaft assembly
3 Bolt
4 Washer
5 Camshaft gear
6 Thrust plate
7 Key
8 Camshaft
9 No.1 camshaft bushing
10 No.2 camshaft bushing
11 Sealing cap
12 No.4 camshaft bushing
13 No.3 camshaft bushing
* : Crankcase Õ P11-52
Ù : Non-reusable parts
3
Ê
-
4
1
*
-
-
-
NOTE
Do not remove camshaft gear 5 unless it is faulty.
● Assembly sequence
Follow the disassembly sequence in reverse.
Service standards Unit : mm {in.}
Standard value
Location Maintenance item Limit Remedy
(Basic diameter in [ ])
— End play of camshaft 0.05 to 0.22 {0.0020 to 0.0087} 0.3 {0.012} Inspect
8 Camshaft Difference between Inlet 7.195±0.05 {0.28±0.0020} 6.70 {0.26}
long and short
diameters
Exhaust 7.321±0.05 {0.29±0.0020} 6.82 {0.27}
Bend 0.02 {0.00079} or less 0.05 {0.0020} Replace
9, 10, Clearance between camshaft and
No.1 to No.3
[54.5] 0.03 to 0.08 0.15 {0.0059} Repair
12, 13 camshaft bushing {[2.15] 0.0012 to 0.0031} or replace
No.4 [53] 0.03 to 0.08 0.15 {0.0059}
{[2.09] 0.0012 to 0.0031}
Ê Tightening torque Unit : N·m {lbf.ft, kgf·m}
Location Parts to be tightened Tightening torque Remarks
3 Bolt (Camshaft gear mounting) 175 {130, 18} Wet
Long diameter
47.105 {1.85}
Short diameter
39.910 {1.57}
Long diameter
46.979 {1.84}
Short diameter
39.658 {1.56}
7
Ù
-
Replace
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