Cylinder Head Installation
Install the cylinder head in the reverse order of removal:NOTE:
- Always use a new head gasket.
- Cylinder head and cylinder block surface must be clean.
- "UP" mark on the camshaft pulleys should be at the top.
- Do not use the middle cover and lower cover for storing removed items.
- Clean the middle cover and lower cover before installation.
- Replace the washer when damaged or deteriorated.
1. Cylinder head dowel pins and the oil control orifice must be aligned.
NOTE:
- When handling a metal gasket, care should be taken not to fold it or damage the contact surface of the gasket.
- Clean the oil control orifice when installing.
Cylinder Head Bolts Torque Sequence:
2. Tighten the cylinder head bolts in two steps. In the first step tighten all bolts, in sequence, to about 29 Nm (3.0 kgf.m, 22 ft. lbs.); in the final step, tighten in the same sequence to 85 Nm (8.7 kgf.m, 63 ft. lbs.)
NOTE:
- Apply engine oil to the cylinder head bolts and the washers.
- Use the longer bolts at positions No. 1 and No. 2 as shown.
3. Install the intake manifold and tighten the nuts in a crisscross pattern in 2 or 3 steps, beginning with the inner nuts.
CAUTION: Check for folds or scratches on the surface of the gasket. Replace with a new gasket if damaged.
4. Tighten the intake manifold bracket bolts.
5. Install the exhaust manifold and tighten the new self-locking nuts in a crisscross pattern in 2 or 3 steps, beginning with the inner nuts.
- Use new self-locking nuts.
CAUTION:
- Make sure that the keyways on the camshafts are facing up and No. 1 piston is at top dead center (TDC) .
- Replace the rocker arms in their original positions.
6. Place the rocker arms on the pivot bolts and the valve stems.
7. Install the camshafts, then install the camshaft seals with the open side (spring) facing in.
8. Apply liquid gasket to the head mating surfaces of the No. 1 and No. 6 camshaft holders, then install them, along with No. 2, 3, 4, and 5.
NOTE:
- "1" or "E" marks are stamped on the camshaft holders.
- Do not apply oil to the holder mating surface of camshaft seals.
- Apply liquid gasket to the shaded areas.
- The arrows marked on the camshaft holders should point to the timing belt.
- Clean and dry the cylinder head mating surfaces before applying liquid gasket.
9. Tighten the camshaft holders temporarily.
- Make sure that the rocker arms are properly positioned on the valve stems.
10. Tighten each bolt in two steps to ensure that the rockers do not bind on the valves.
NOTE: Wipe off the excess of liquid gasket from No. 1 and No. 6 camshaft holder with a shop towel.
11. Align the marks on the cylinder head plug to the cylinder head upper surface, then install the cylinder head plug in the cylinder head to the end.
12. Install the back cover.
13. Install keys into camshaft grooves.
NOTE: To set the camshafts at TDC position for No. 1 piston, align the holes in the camshafts with the holes in No. 1 camshaft holders and insert 5.0 mm pin punches in the holes.
14. Push camshaft pulleys onto camshafts, then tighten the retaining bolts to the torque specified.
15. Install the timing belt.
16. Adjust the valve clearance.
17. Install the rubber seal in the groove of the cylinder head cover. Seat the seal in the recesses for the camshaft first, then work it into the groove around the outside edges.
NOTE:
- Before installing the rubber seal, thoroughly clean the seal and the groove.
- When installing, make sure the seal is seated securely in the corners of the recesses with no gap.
18. Apply liquid gasket to the rubber seal at the eight corners of the recesses.
NOTE:
- Use liquid gasket, Part No. 08718 - 0001 or 08718 - 0003.
- Check that the mating surfaces are clean and dry before applying liquid gasket.
- Do not install the parts if 5 minutes or more have elapsed since applying liquid gasket. Instead, reapply liquid gasket after removing old residue.
- After assembly, wait at least 30 minutes before filling the engine with oil.
19. When installing the cylinder head cover, hold the rubber seal in the groove by placing your fingers on the camshaft holder contacting surfaces (top of the semicircles).
Once the cylinder head cover is on the cylinder head, slide the cover slightly back and forth to seat the rubber seal.
NOTE:
- Before installing the cylinder head cover, clean the cylinder head contacting surfaces using a shop towel.
- Do not touch the parts where liquid gasket was applied.
20. Tighten the nuts in 2 or 3 steps. In the final step, tighten all nuts, in sequence, to 9.8 Nm (1.0 kgf.m, 7.2 ft. lbs.).
21. After installing, check that all tubes, hoses and connectors are installed correctly.