Suzuki Grand Vitara JB416 / JB420 / JB419. Manual — part 125

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

S6JB0A1416018

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

S6JB0A1416019

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.

I4RS0A140013-01

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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1D-28 Engine Mechanical: For M16A Engine with VVT

4) Loosen camshaft housing bolts in such order as

indicated in the figure and remove them.

5) Remove camshaft housings.
6) Remove intake and exhaust camshafts.
7) Remove camshaft bearing (1).

8) Remove tappets (2) with shims (1).

Installation

1) Install tappets and shims to cylinder head.

Apply engine oil around tappet and then install it to
cylinder head.

NOTE
When installing shim, make sure to direct
shim No. side toward tappet.

2) Install camshaft bearing (1) to cylinder head.

CAUTION

!

Do not apply engine oil to camshaft bearing
back.
Only a upper half bearing of intake camshaft
bearing No.1 has some holes. Other
bearings.

“12” “13” “20” “21” “16” “17” “8” “9”

“2”

“5”

“3”

“4”

“1”

“10” “11” “18” “19” “14” “15” “6” “7”

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1

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Engine Mechanical: For M16A Engine with VVT 1D-29

3) Install intake camshaft (1) and exhaust camshaft (2).

Align knock pin (3) and match mark (4) with notches
(5) as shown in the figure.

NOTE
Before installing camshafts, turn crankshaft
until key position faces upward.
Refer to “Timing Chain and Chain Tensioner
Removal and Installation: For M16A Engine
with VVT”.

4) Apply engine oil to sliding surface of each camshaft

and camshaft journal then install them as shown in
the figure.

5) Install camshaft housing pins (1) as shown in the

figure.

6) Check position of camshaft housings.

Embossed marks are provided on each camshaft
housing, indicating position and direction for
installation. Install housings as indicated by these
marks.

7) After applying engine oil to housing bolts, tighten

them temporarily first. Then tighten them by the
numerical order in the figure. Tighten a little at a time
and evenly among bolts and repeat tightening
sequence two or three times before they are
tightened to specified torque.

Tightening torque
Camshaft housing bolt (a): 11 N·m (1.1 kgf-m,
8.0 lb-ft)

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

held stationary with spanner or the like, tighten bolt
of intake cam timing sprocket assembly (3) to
specification.

Tightening torque
Intake cam timing sprocket bolt (a): 60 N·m (6.0
kgf-m, 43.5 lb-ft)

“a”: Approx. 30

°

1

2

3

4

5

“a”

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A: I: Intake side or E: Exhaust side
B: Position from timing chain side

C: Pointing to timing chain side

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“10” “9”

“2” “1”,(a) “6”

“5”

“14” “13”

“20”

“17”

“19”

“18”

“21”

“12” “11” “4”

“3”

“8”

“7”

“16” “15”

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1

2

3

(a)

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