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3) Install exhaust manifold stiffener (1).
Tighten exhaust manifold stiffener bolts to specified torque.
Tightening torque
Exhaust manifold stiffener bolts
(a) : 50 N·m (5.0 kg-m, 36.5 lb-ft)
4) Install exhaust manifold cover (1).
5) Connect heated oxygen sensor coupler (2) and fit coupler to
bracket securely (if equipped).
6) Connect negative cable at battery.
7) Check exhaust system for exhaust gas leakage.
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INSPECTION
Check oil seal (1) lip for fault or other damage.
Replace as necessary.
Special tool
(A) : 09913-75520
INSTALLATION
Reverse removal procedure to install timing chain cover, noting
the following points.
1) Apply sealant “A” to mating surface of cylinder and cylinder
head and “B” to mating surface of timing chain cover as
shown in figure.
“A” : Sealant 99000-31140
“B” : Sealant 99000-31150
Sealant amount for timing chain cover
Width “a” : 3 mm, 0.12 in.
Height “b” : 2 mm, 0.08 in.
2) Apply engine oil to oil seal lip, then install timing chain cover
(1) and water outlet pipe (2).
Tighten bolts and nut to specified torque.
Tightening torque
Timing chain cover bolts and nut
(a) : 23 N·m (2.3 kg-m, 17.0 lb-ft) NOTE:
When installing new oil seal, tap it in until its surface is
flash with edge of timing chain cover (2).
To install oil seal, use special tool (Bearing installer).
NOTE:
Before installing timing chain cover, check that pin is
securely fitted.
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2) Remove outer rotor (1) and inner rotor (2).
3) Remove relief valve (1), spring (2) and retainer (3) by remov-
ing circlip (4).
INSPECTION
Check oil seal lip for fault or other damage. Replace as nec-
essary.
Special tool
(A) : 09913-75520
NOTE:
When installing new oil seal (1), press-fit it till its end face
is flush with oil pump case (2) end face.
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Check outer (1) and inner rotors (2), rotor plate, and oil pump
case for excessive wear or damage.
Check relief valve (1) for excessive wear or damage and
operates smoothly.
MEASUREMENT
Radial clearance
Check radial clearance between outer rotor (1) and case (2),
using thickness gauge (3).
If clearance exceeds its limit, replace outer rotor or case.
Limit on radial clearance between outer rotor and case for
oil pump
0.310 mm (0.0122 in.)
Side clearance
Using straight edge (1) and thickness gauge (2), measure side
clearance.
Limit on side clearance for oil pump inner rotor
0.15 mm (0.0059 in.)
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ASSEMBLY
1) Wash, clean and then dry all disassembled parts.
2) Apply thin coat of engine oil to inner and outer rotors, oil seal
lip portion, and inside surfaces of oil pump case and plate.
3) Install outer (1) and inner rotors (2) to oil pump case.
4) Install relief valve component (1) to rotor plate (2).
5) Install rotor plate and tighten all bolts to specified torque.
After installing plate, check to be sure that rotors turn
smoothly by hand (0.3 N·m (0.03 kg-m, 0.25 lb-ft) torque or
below).
Tightening torque
Oil pump rotor plate bolts (a) : 11 N·m (1.1 kg-m, 8.0 lb-ft)
INSTALLATION
For installation referring to “Timing Chain Cover” in this section.
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INSPECTION
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.
Timing chain No.1 guide
Check shoe (1) for wear or damage.
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INSTALLATION
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 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 mark (2) on camshaft timing sprocket and then
aligning dark blue plate (3) and triangle mark (4) as shown in
figure.
4) Fit crankshaft timing sprocket to timing chain by aligning gold
plate (5) of timing chain and mark (6) 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 figure.
Tighten guide bolts to specified torque.
Tightening torque
Timing chain No.1 guide bolts
(a) : 9 N·m (0.9 kg-m, 6.5 lb-ft) CAUTION:
After timing chain is removed, never turn crankshaft and
camshafts independently more than such an extent (“a”,
“b”) as shown in figure.
If turned, interference may occur between piston and
valves and valves themselves, and parts related to piston
and valves may be damaged.
“a” :90°5. Crankshaft allowable turning range.
By key on crankshaft, within 90° from top on both right and left.
“b” :15°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.
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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) : 22 N·m (2.2 kg-m, 16.0 lb-ft)
7) Check that match marks (1) on intake and exhaust camshaft
timing sprockets are in match with dark blue plates (2) of tim-
ing 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 timing chain tensioner
adjuster (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 bolts
(a) : 11 N·m (1.1 kg-m, 8.0 lb-ft)
221
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