Removal and Installation: Installation
- Before installation, remove any old Silicone RTV Sealant from component mating surfaces using a scraper.
- Remove the old Silicone RTV Sealant from the bolt holes and threads.
- Do not scratch or damage the mating surfaces.
- Before installing the front cam bracket, remove the old Silicone RTV Sealant from the mating surface using a scraper.
- Do not scratch or damage the mating surface.
- Turn the crankshaft until No. 1 piston is set at TDC on the compression stroke.
- The crankshaft key (A) should line up with the right bank cylinder center line (B) as shown, above.
- Install camshaft chain tensioners (1) on both sides of cylinder head. Refer to Exploded View .
- Install valve lifter (if removed).NOTE: Install them in original positions.
- Install exhaust and intake camshafts and camshaft brackets.
- Intake camshaft has a drill mark on camshaft sprocket mounting flange.
- Follow your identification marks made during removal or follow the identification marks that are present on the new camshafts components for proper placement and direction of the components.
Bank
INT/EXH
ID mark (A)
Drill mark
Paint marks
M1 (E)
M2 (F)
M3 (D)
RH (B)
INT
4F
Yes
Blue
No
Green
EXH
4H
No
No
Green
Green
LH (C)
INT
4G
Yes
Blue
No
Green
EXH
4K
No
No
Green
Green
- Position the camshaft dowel pins (A) as shown, below.
- Before installing camshaft brackets, apply liquid gasket to mating surface of No. 1 camshaft bracket.
: Engine front
- Use Genuine Silicone RTV Sealant or equivalent. Refer to Recommended Chemical Products and Sealants
.CAUTION:
- Installation should be done within 5 minutes after applying liquid gasket.
- Do not fill the engine with engine oil for at least 30 minutes after the components are installed to allow the liquid gasket to cure.
- Before installation, wipe off any protruding liquid gasket. Refer to Precaution for Liquid Gasket .
- Install camshaft brackets in their original positions and direction. Align the stamp marks as shown, below.
If checking and adjusting any part of valve assembly or camshaft, check valve clearance according to the reference data. Refer to Valve Clearance .
Valve clearance (cold) Intake
: 0.26 - 0.34 mm (0.010 - 0.013 in)
Valve clearance (cold) Exhaust
: 0.29 - 0.37 mm (0.011 - 0.015 in)
(A)
: Camshaft bracket ID mark
(B)
: Bank 1
(C)
: Bank 2
: Engine front
- Tighten the camshaft brackets bolts in three steps to the specified torque in the sequence shown, below.
- Cylinder head [bank 1 (1)]
(1)
1.96 N.m (0.20 kg-m, 17 in-lb)
Tighten No. 7 - 10, then tighten No. 1 - 6 in the numerical order shown, above.
(2)
5.88 N.m (0.60 kg-m, 52 in-lb)
Tighten No. 1 - 10 in the numerical order shown, above.
(3)
10.41 N.m (1.1 kg-m, 8 ft-lb)
Tighten No. 1 - 10 in the numerical order shown, above.
(A)
: Camshaft [EXH (bank 1)]
(B)
: Camshaft [INT (Bank 1)]
(C)
: Camshaft bracket
: Engine front
- Cylinder head [bank 2 (2)]
(1)
1.96 N.m (0.20 kg-m, 17 in-lb)
Tighten No. 7 - 12, then tighten No. 1 - 6 in the numerical order shown, above.
(2)
5.88 N.m (0.60 kg-m, 52 in-lb)
Tighten No. 1 - 12 in the numerical order shown, above.
(3)
10.41 N.m (1.1 kg-m, 8 ft-lb)
Tighten No. 1 - 12 in the numerical order shown, above.
- Use Genuine Silicone RTV Sealant or equivalent. Refer to Recommended Chemical Products and Sealants
.
- Measure difference in levels between front end faces of No. 1 camshaft bracket and cylinder head.
Standard
: - 0.14 to 0.14 mm (- 0.0055 to 0.0055 in)
- If measurement is outside the specified range, re-install camshaft and camshaft bracket.
- Install camshaft position sensors.
- Install the timing chains. Refer to Removal and Installation .
- Installation of the remaining components is in the reverse order of removal.