Valve and Cylinder Head Removal and Installation
Valve and Cylinder Head Removal and InstallationRemoval
1) Remove engine assembly from vehicle.
2) Remove cylinder head cover.
3) Remove generator bracket.
4) Remove timing chain cover.
5) Remove 2nd timing chain (bank 1), timing chain tensioner adjuster No.1, timing chain tensioner No.1 and timing chain guide No.1.
6) Remove 2nd timing chain (bank 2), timing chain tensioner adjuster No.3, timing chain tensioner No.2 and timing chain guide No.3.
7) Loosen cylinder head bolts No.1 and No.2 in numerical order ("1" - "10") as shown in figure, and remove cylinder head bolts No.1 and No.2.
8) If necessary, remove exhaust manifold.
9) If necessary, remove valve lash adjusters, valve rocker arms, intake and exhaust camshafts.
10) Remove cylinder head.
Installation
1) Clean mating surface of cylinder head and cylinder block.
2) Install dowel pins (1) to cylinder block.
3) Install new cylinder head gaskets (2) to cylinder block.
4) Install cylinder head as follows.
CAUTION:
Do not apply engine oil to cylinder head bolts No.1 and No.2.
a) Tighten cylinder head bolts No.1 to 30 Nm (3.1 kgf-m, 22.5 lbf-ft) in numerical order ("1" - "8") shown in figure evenly and gradually.
b) In the same manner as Step a), retighten them to +150 degrees.
c) Tighten cylinder head bolt No.2 to 15 Nm (1.5 kgf-m, 11.0 lbf-ft) in numerical order ("9" - "10") shown in figure evenly and gradually.
d) In the same manner as Step c), retighten them to +75 degrees. Tightening torque
Cylinder head bolt No.1 bolt* (a): 30 Nm -> +150 degrees (3.1 kgf-m -> +150 degrees, 22.5 lbf-ft -> +150 degrees)
Cylinder head bolt No.2 bolt* (a): 15 Nm -> +75 degrees (1.5 kgf-m -> +75 degrees, 11.0 lbf-ft -> +75 degrees)
5) Install 2nd timing chain (bank 2), timing chain tensioner adjuster No.3, timing chain tensioner No.2 and timing chain guide No.3.
6) Install 2nd timing chain (bank 1), timing chain tensioner adjuster No.1, timing chain tensioner No.1 and timing chain guide No.1.
7) Install timing chain cover.
8) Install generator bracket.
9) Install cylinder head cover.
10) Install engine assembly from vehicle.