6A2-66 ENGINE MECHANICAL (H25 ENGINE)
Valves and Cylinder Heads
COMPONENTS
1. Cylinder block 6. Exhaust valve 11. Valve stem oil seal 16. Cylinder head bolt
(hex hole bolt)
2. RH bank cylinder head 7. Intake valve 12. Valve spring retainer Tightening Torque
3. LH bank cylinder head 8. Valve spring seat 13. Valve cotter Do not reuse
4. RH bank cylinder head gasket :
Carved lot number on cylinder head
gasket should face up (toward cylinder
head side).
9. Outer valve spring :
Be sure to position spring in place with
its bottom end (small-pitch end) facing
the bottom (valve spring seat side).
14. Valve guide Apply engine oil to
sliding surface of
each parts.
5. LH bank cylinder head gasket :
Carved lot number on cylinder head
gasket should face up (toward cylinder
head side).
10. Inner valve spring :
Be sure to position spring in place with
its bottom end (small-pitch end) facing
the bottom (valve spring seat side).
15. Cylinder head bolt
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