service ISUZU TF SERIES 2004 Repair Manual

ISUZU TF SERIES 2004 Repair Manual TF SERIES 2004 ISUZU ISUZU https://www.carmanualsonline.info/img/61/57180/w960_57180-0.png ISUZU TF SERIES 2004 Repair Manual

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ISUZU TF SERIES 2004 Repair Manual 6A – 36  ENGINE MECHANICAL 
GENERAL DESCRIPTION 
 
 
 
 
 
 
 
 
 
 RTW46AMF000401 
 
The 4J series automotive diesel engine has special designed combustion chambers in the piston. This design 
prov

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ISUZU TF SERIES 2004 Repair Manual 6A – 72  ENGINE MECHANICAL 
  
 
 012RY00022  
A mark was stamped on the upper side of the cylinder block 
during production to indicate the correct liner. 
The liner grade (i.e.1.2.3.4) is indicate

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ISUZU TF SERIES 2004 Repair Manual 6A – 74  ENGINE MECHANICAL 
  
 
 
 
 
 
 
 
 
 
 Piston Grade Selection 
Measure the cylinder liner bore after installing the cylinder liner. 
Then select the appropriate piston grade for the insta

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ISUZU TF SERIES 2004 Repair Manual ENGINE MECHANICAL   6A – 75 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
2.  Measure the piston diameter. 
 
 
Piston Measuring Point  mm (in)
4JA1T(L) 
4JA1

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ISUZU TF SERIES 2004 Repair Manual ENGINE MECHANICAL   6A – 85 
  CRANKSHAFT PILOT BEARING 
Check the crankshaft pilot bearing for excessive wear and 
damage and replace it if necessary. 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 Crankshaft Pi

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ISUZU TF SERIES 2004 Repair Manual 6B  – 8   ENGINE COOLING 
  Draining and Refilling Cooling System 
Before draining the cooling system, inspect the system and 
perform any necessary service to ensure that it is clean, does
not leak

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ISUZU TF SERIES 2004 Repair Manual 6C – 28   FUEL SYSTEM 
 
REASSEMBLY AND ADJUSTMENT PROCEDURE  
1 
First nozzle opening pressure adjustment   Adjust the first nozzle opening pressure using the shim. 
    
2 
Full needle valve lift

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ISUZU TF SERIES 2004 Repair Manual 6C – 34   FUEL SYSTEM 
 
 
 2.  Read the needle valve “pre-lift” point from the dial 
gauge indication (once the needle valve has 
descended when the second spring has stopped 
operating). 
Pre-

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ISUZU TF SERIES 2004 Repair Manual FUEL SYSTEM    6C – 37 
 
 4.  Set the nozzle holder to the nozzle tester and check 
first nozzle opening pressure, spray condition, seat oil 
tightness and each part for oil leaks. 
5.  When replac

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ISUZU TF SERIES 2004 Repair Manual 4JA1/4JH1 ENGINE DRIVEABILITY AND EMISSIONS 6E–1
ENGINE
CONTENTS
4JA1/4JH1 ENGINE DRIVEABILITY AND EMISSIONS
ABBREVIATION CHARTS  ........................ 6E-9
4JA1-TC ..............................