2007 ISUZU KB P190 Workshop Repair Manual

Page 865 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 6A – 60  ENGINE MECHANICAL 
 
   
 
 RTW36ASH001501 
Disassembly 
1.  Connecting Rod Bearing 
If the connecting rod bearings are to be reinstalled, mark  
their fitting positions by tagging each bea

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ISUZU KB P190 2007  Workshop Repair Manual ENGINE MECHANICAL   6A – 61 
 
 INSPECTION AND REPAIR 
Make the necessary adjustments, repairs, and part replacements if excessive wear or damage is discovered during  
inspection.  
 
 
 
 
 
 CYLI

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ISUZU KB P190 2007  Workshop Repair Manual 6A – 62  ENGINE MECHANICAL 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 Manifold Fitting Face Warpage 
Use a straight edge and a feeler gauge to measure the  
manifold cylinder head fitting face wa

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ISUZU KB P190 2007  Workshop Repair Manual ENGINE MECHANICAL   6A – 63 
 
 
  Measuring Method-II  
1.  Measure the valve stem outside diameter.  Refer to the Item "Valve Stem Outside Diameter". 
2.  Use a caliper calibrator or a telescoping

Page 869 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 6A – 64  ENGINE MECHANICAL 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 Valve Stem Outside Diameter 
Measure the valve stem diameter at three points.  
If the measured value is less than the specified limit, the

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ISUZU KB P190 2007  Workshop Repair Manual ENGINE MECHANICAL   6A – 65 
   
 
  
 
 
 
 
  
 
 
 
 
 
 
 
 
Valve Contact Width 
1.  Check the valve contact faces for roughness and  unevenness. Make smooth the valve contact surfaces. 
2.  Me

Page 871 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 6A – 66  ENGINE MECHANICAL 
 
 
 Valve Seat Insert Installation  
1.  Carefully place the attachment (1) (having a smaller  outside diameter than the valve seat insert) on the valve  
seat insert (2

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ISUZU KB P190 2007  Workshop Repair Manual ENGINE MECHANICAL   6A – 67 
 
   
 
 
 
 
 
 
 
 
 
 
 
 Valve Spring Free Height 
Use a vernier caliper to measure the valve spring free height.  
If the measured value is less than the specified