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Образование CRANKCASE AND CRANKSHAFT ENG
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G-8

CRANKCASE AND CRANKSHAFT ENG

CRANKCASE AND CRANKSHAFT CRANKSHAFT REMOVAL

1. Remove:

• Crankshaft assembly

• Timing chain Ø

NOTE:

Before removing the crankshaft assembly, remove the timing chain from the crankshaft sprocket.

If the timing chain hooks to the crankshaft sprocket, the crankshaft cannot be removed.

CRANKSHAFT INSPECTION

1. Measure:

• Crankshaft run-out

Out of specification —( replace crankshaft and/or bearing.

NOTE:

Measure the crankshaft run-out with the crankshaft assembly running slowly

Run-out limit: 0.03mm

2. Measure

  Order   Job name/part name   Quantity     Remarks  
Timing chain guide (intake)       Refer to “CRANKSHAFT INSTALLA-  
Screw  
Crankcase (right)  
      TION” section  
Dowel pin      
 
Crankshaft assemtly Refer to “CRANKSHAFT REMOVAL/  
Timing chain INSTALLATION“ section  
Crankcase (left)      
Oil seal    
Reverse the removal procedure for  
installation  
Big end side clearance

Out of specification —( replace big end bearing, crank pin and/or connecting rod.

Big end side clearance: 0.15 ~ 0.45 mm

3. Measure

• Crank width

Out of specification —( replace crankshaft

Crank width:


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