2007 ISUZU KB P190 Workshop Repair Manual

Page 881 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 6A – 76  ENGINE MECHANICAL 
  Tappet Outside Diameter 
Measure the tappet outside diameter with a micrometer.  
If the measured value is less than the specified limit, the tappet  
must be replaced.

Page 882 of 6020

ISUZU KB P190 2007  Workshop Repair Manual ENGINE MECHANICAL   6A – 77 
   
 
   CAMSHAFT 
Visually inspect the journals, the cams, the oil pump drive gear,  
and the camshaft bearings for excessive wear and damage. 
The camshaft and the cam

Page 883 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 6A – 78  ENGINE MECHANICAL 
 Camshaft and Camshaft Bearing Clearance 
Use an inside dial indicator to measure the camshaft bearing  
inside diameter.  
   
Crankshaft Bearing Inside Diameter mm  (in

Page 884 of 6020

ISUZU KB P190 2007  Workshop Repair Manual ENGINE MECHANICAL   6A – 79 
   
 
 
 
 CRANKSHAFT AND BEARING 
Inspect the surface of the crankshaft journals and crankpins for  
excessive wear and damage.  
Inspect the oil seal fitting surfaces

Page 885 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 6A – 80  ENGINE MECHANICAL 
 
 Crankshaft Journal and Crankpin Diameter 
1.  Use a micrometer to measure the crankshaft journal 
diameter across points 1 - 1 and 2 - 2. 
2.  Use the micrometer to me

Page 886 of 6020

ISUZU KB P190 2007  Workshop Repair Manual ENGINE MECHANICAL   6A – 81 
 
 Connecting Rod Bearing Inside Diameter 
1.  Install the bearing to the connecting rod big end.  
2.  Tighten the bearing cap to the two step of anglar tightening  met

Page 887 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 6A – 82  ENGINE MECHANICAL 
   
 
 
  
 
  
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 9.  Compare the width of the Plastigage attached to either the 
crankshaft or the bearing a

Page 888 of 6020

ISUZU KB P190 2007  Workshop Repair Manual ENGINE MECHANICAL   6A – 83 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 6.  Remove the bearing cap.  
7.  Compare the width of the Plastigage attached to either the  crankshaft