Isuzu KB P190. Manual — part 726

Engine Mechanical – V6

Page 6A1–127

Page 6A1–127

Left-hand Secondary Timing Chain Shoe

1

Inspect the front of the left-hand secondary timing
chain shoe for the following:
•

worn shoe surface (1),

•

cracked or broken shoe surface (2), and

•

cracked or damaged shoe (3).

Figure 6A1 – 137

2

Inspect the back of the shoe for a damaged, worn or
missing timing chain tensioner contact pad (1).

3

Replace a damaged shoe as required.

Figure 6A1 – 138

Left-hand Secondary Timing Chain Tensioner

Figure 6A1 – 139

1

Inspect the left-hand secondary timing chain tensioner for damaged plunger-to-shoe contact surface (1), refer to
Figure 6A1 – 137.

Engine Mechanical – V6

Page 6A1–128

Page 6A1–128

2

Inspect the tensioner for locked or binding tensioner shaft (2). Reset the plunger (3) and ensure the tensioner shaft
moves freely in and out of the body of the tensioner.

N O T E

To reset the tensioner, use a suitably sized flat
blade screwdriver or Tool No. J 45027 (4) to wind
the plunger in a clockwise direction, into the
tensioner shaft.

3

Replace a damaged tensioner as required.

Right-hand Secondary Timing Chain Guide

1

Inspect the right-hand secondary timing chain guide
for the following:
•

worn guide surface (1),

•

cracked or broken guide surface (2), and

•

cracked or damaged guide base (3).

2

Replace a damaged guide as required.

Figure 6A1 – 140

Right-hand Secondary Timing Chain Shoe

1

Inspect the front of the right-hand secondary timing
chain shoe for the following:
•

worn shoe surface (1),

•

cracked or broken shoe surface (2), and

•

cracked or damaged shoe (3).

Figure 6A1 – 141

Engine Mechanical – V6

Page 6A1–129

Page 6A1–129

2

Inspect the back of the shoe for a damaged, worn or
missing timing chain tensioner contact pad (1).

Replace a damaged shoe as required.

Figure 6A1 – 142

Right-hand Secondary Timing Chain Tensioner

Figure 6A1 – 143

1

Inspect the right-hand secondary timing chain tensioner for damaged plunger-to-shoe contact surface (1), refer to
Figure 6A1 – 141.

N O T E

To reset the tensioner, use a suitably sized flat
blade screwdriver or Tool No. J 45027 (4) to wind
the plunger in a clockwise direction, into the
tensioner shaft.

2

Inspect the tensioner for a locked or binding tensioner shaft (2). Reset the plunger (3) and ensure the tensioner
shaft moves freely in and out of the body of the tensioner.

3

Replace a damaged tensioner as required.

Engine Mechanical – V6

Page 6A1–130

Page 6A1–130

Reinstall

Left-hand Secondary Timing Chain Components – Excluding MY06 Update

1

Install the crankshaft sprocket (1) onto the
crankshaft (2) by aligning the keyway to the key on
the crankshaft.

2

Slide the crankshaft sprocket on the crankshaft until
the crankshaft sprocket contacts the step in the
crankshaft.

Figure 6A1 – 144

N O T E

Ensure that the crankshaft sprocket is installed
with the timing mark (1) visible.

Figure 6A1 – 145

CAUTION

In order to install Tool No. EN 46105 onto the
camshafts, rotate the camshafts in an anti-
clockwise direction. There should be no
need to rotate the camshaft more than 45
degrees.

Figure 6A1 – 146