Suzuki Grand Vitara JB416 / JB420. Manual - part 89

1D-24 Engine Mechanical: For M16A Engine with VVT

Installation

CAUTION

!

 

After timing chain is removed, never turn 
crankshaft and camshafts independently 
more than such an extent (“a”, “b”) as shown 
in the figure.
If turned, interference may occur between 
piston and valves and valves themselves, 
and parts related to piston and valves may be 
damaged.

 

1) Check that match marks (1) on intake and exhaust 

camshaft timing sprockets are in match with notches 
(2) on cylinder head as shown in the figure.

2) Set key (3) and turn crankshaft to position key on 

upside of crankshaft.

3) Install timing chain by aligning dark blue plate (1) of 

timing chain and triangle mark (2) on camshaft 
timing sprocket as shown in the figure.

4) Fit crankshaft timing sprocket to timing chain by 

aligning gold plate (3) of timing chain and circle mark 
(4) on crankshaft timing sprocket. Then install 
crankshaft timing sprocket fitted with chain to 
crankshaft.

5) Apply engine oil to sliding surface of timing chain 

No.1 guide (1) and install it as shown in the figure.
Tighten guide bolts to specified torque.

Tightening torque
Timing chain No.1 guide bolt (a):  11 N·m (1.1 
kgf-m, 8.0 lb-ft)

“a”: 90

°

4. Camshaft (IN and EX) allowable turning range.

By marks on camshaft timing sprocket within 15

° from notches 

on cylinder head on both right and left.

“b”: 15

°

5. Crankshaft allowable turning range.

By key on crankshaft, within 90

° from top on both right and left.

“a”

“b”

“b”

“b”

“b”

“a”

1

1

2

4

3

5

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[A]: View A

1

1

2

2

3

4

Approx. 
      60˚

Approx. 
      30˚

A

[A]

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Engine Mechanical: For M16A Engine with VVT 1D-25

6) Apply engine oil to sliding surface of chain tensioner 

(1) and install chain tensioner and spacer.
Tighten tensioner bolt to specified torque.

Tightening torque
Timing chain tensioner bolt (a):  25 N·m (2.5 kgf-
m, 18.0 lb-ft)

7) Check that match marks (1) on intake and exhaust 

camshaft timing sprockets are in match with dark 
blue plates (2) of timing chain and match mark (3) on 
crankshaft timing sprocket is in match with gold plate 
(4) of timing chain.

8) Screw in plunger (1) by turning body (2) in arrow 

direction and install a retainer (3) (wire) to hold 
plunger in place.

9) Install timing chain tensioner adjuster assembly (1) 

with a retainer (2).
Tighten adjuster bolts to specified torque and then 
remove a retainer from chain tensioner adjuster 
assembly.

Tightening torque
Timing chain tensioner adjuster bolt (a):  11 N·m 
(1.1 kgf-m, 8.0 lb-ft)

[A]: View A

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2

2

1

1

3

4

Approx. 
      60˚

Approx. 
      30˚

A

[A]

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1D-26 Engine Mechanical: For M16A Engine with VVT

10) Apply engine oil to timing chain and then turn 

crankshaft clockwise by 2 revolutions and check that 
match marks (1) on intake and exhaust camshaft 
timing sprockets are in match with notches (2) on 
cylinder head and key (3) is in match with notch (4) 
on cylinder black as shown in the figure.
If each marking chain and each match mark are no 
matches, adjust each sprockets and timing chain.

11) Install timing chain cover referring to “Timing Chain 

Cover Removal and Installation: For M16A Engine 
with VVT”.

12) Perform Steps 3) to 8) of “Installation” of “Timing 

Chain Cover Removal and Installation: For M16A 
Engine with VVT”.

Timing Chain and Chain Tensioner Inspection

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Timing Chain No.1 Guide
Check shoe (1) for wear or damage.

Timing Chain Tensioner
Check shoe (1) for wear or damage.

Crankshaft Timing Sprocket
Check teeth of sprocket for wear or damage.

Timing Chain
Check timing chain for wear or damage.

Timing Chain Tensioner Adjuster
Check that tooth surface (1) are free from damage.

1

1

2

3

4

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Engine Mechanical: For M16A Engine with VVT 1D-27

Camshaft, Tappet and Shim Components

S5JB0A1416020

Camshaft, Tappet and Shim Removal and 
Installation

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CAUTION

!

 

• Keep working table, tools and hands clean 

while overhauling.

• Use special care to handle aluminum parts 

so as not to damage them.

• Do not expose removed parts to dust. 

Keep them always clean.

 

Removal

1) Remove timing chain cover referring to “Timing 

Chain Cover Removal and Installation: For M16A 
Engine with VVT”.

2) Remove timing chain referring to “Timing Chain and 

Chain Tensioner Removal and Installation: For M16A 
Engine with VVT”.

3) With hexagonal section (1) of intake camshaft (2) 

held stationary with spanner or the like, loosen 
mounting bolt of intake cam timing sprocket 
assembly (3) and remove it.

CAUTION

!

 

Never attempt to loosen mounting bolt with 
intake cam timing sprocket assembly held 
stationary. Failure to follow this could result 
in damage to lock pin.
Do not loosen bolt “a” because intake cam 
timing sprocket assembly is not serviceable.

 

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1. Intake camshaft

 5. Shim

: Shim No. on it faces tappet side.

 9. Upper camshaft bearing

: Install a bearing half with some holes to upper side of intake 
camshaft No.1 bearing.

2. Intake camshaft sprocket assembly

6. Tappet

: 60 N

⋅m (6.0 kgf-m, 43.5 lb-ft)

3. Intake camshaft sprocket bolt

7. Camshaft housing

: 11 N

⋅m (1.1 kgf-m, 8.0 lb-ft)

4. Exhaust camshaft

8. Camshaft housing bolt

: Apply engine oil to sliding surface of each part.

3

“a”

1

2

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