Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual — part 591

FUEL SYSTEM 6C – 23

INJECTION PUMP CALIBRATION DATA

INJECTION VOLUME ADJUSTMENT

TEST CONDITIONS

Item Condition

Injection nozzle

Injection nozzle holder

Injection nozzle opening pressure

kg/cm

2

(psi/kPa)

Injection line dimensions

mm (in)

Inside

diameter

Outside

diameter

Length

Fuel delivery pressure

kg/cm

2

(psi/kPa)

Test fuel

Test fuel temperature

°C (°F)

Identification numbers

ZEXEL Part No.: 105780-0060

Bosch Type No.: DNOSD1510

ZEXEL Part No.: 105780-2150

133 (1,891/13,000)

2 (0.079)

6 (0.236)

450 (17.7)

0.2 (2.84/19.6)

Bosch Diesel Fuel OL61V11

SAE Standard Test Diesel Fuel (SAE967D)

45 – 50 (113 – 122)

104746-6192

104746-6162

IDENTIFICATION PLATE AND NUMBER

Use the data following the injection pump identification
number to adjust the injection volume.

6C – 24 FUEL SYSTEM

INJECTION VOLUME AND GOVERNOR PERFORMANCE DIAGRAM

Engine: 4JB1T

Identification Numbers: 104746-6152 (ISUZU Part Number 8-97132-678-2)

Test Fuel: Standard Diesel Fuel SAE J967D (or ISO 4113)

Governor Adjustment

Timer and Pump Case Pressure

Pump speed

rpm

Timer piston

stroke mm

Pump case pressure

kpa (kg/cm

2

)

Boost pressure

kpa (kg/cm

2

)

Reference

750 Below

0.5

73.3

(0.75)

1600

(2.2 ± 0.4)

73.3 (0.75)

1900

4.5 ± 0.2

618 ± 20 (6.3 ± 0.2)

73.3 (0.75)

Base

2300 7.0

+0.4

73.3

(0.75)

Timer Performance Diagram

-0.3

FUEL SYSTEM 6C – 25

INJECTION VOLUME AND GOVERNOR PERFORMANCE DIAGRAM

Engine: 4JA1T

Identification Numbers: 104746-6501 (ISUZU Part Number 8971884490)

Test Fuel: Standard Diesel Fuel SAE J967D (or ISO 4113)

Governor Adjustment

Timer Performance Diagram

Cold Advancer Performance Diagram

6C – 26 FUEL SYSTEM

INJECTION VOLUME AND GOVERNOR PERFORMANCE DIAGRAM

Engine: 4JA1

Identification Numbers: 104746-6192

Test Fuel: Standard Diesel Fuel SAE J967D (or ISO 4113)

Governor Adjustment

Timer Performance Diagram

Cold Advancer Performance Diagram