YH4
GRAND
VITARA
6A2-18 ENGINE MECHANICAL (H25 ENGINE)
1. Cylinder head cover
2. Nut
3. Seal washer
4. Cylinder head cover
gasket
Left (No.1) cylinder
Area to apply sealant “A”
Right (No.2) cylinder
Area to apply sealant “A”
1. Cylinder head cover
2. Nut
3. Seal washer
4. Cylinder head cover gasket
CYLINDER HEAD COVERS
REMOVAL
1) Remove throttle body and intake manifold.
Refer to item “THROTTLE BODY AND INTAKE MANIFOLD” in
this section for removal.
2) Remove ignition coil covers.
3) Disconnect ignition coil couplers and remove ignition coils.
4) Remove cylinder head covers.
INSTALLATION
1) Clean sealing surfaces on cylinder heads and covers.
2) Remove oil, old sealant, and dust from sealing surfaces. After
cleaning, apply sealant “A” to cylinder heads sealing surface
area as shown in figure.
“A”: Sealant 99000-31150
3) Install new cylinder head cover gaskets to head covers.
4) Install cylinder head covers to cylinder heads.
5) Using new seal washers, tighten nuts to specified torque.
Tightening Torque
(a): 10.5 N
.
m (1.1 kg-m, 7.5 lb-ft)
6) Install ignition coils and connect ignition coil couplers.
7) Install ignition coil covers.
8) Install throttle body and intake manifold.
Refer to item “THROTTLE BODY AND INTAKE MANIFOLD” in
this section for installation.
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