Cylinder Head Torque & Sequence

Camshaft Pulley Removal Note

1. Temporarily install the No.3 engine mount.
2. Remove the SST (engine support).
3. Hold the camshaft using a wrench on the cast hexagon as shown.

Disassembly:

Camshaft Removal Note
1. Loosen the camshaft cap bolts a few turns in the order shown.
2. Remove the camshaft cap.

Disassembly:

Cylinder Head Removal Note
1. Loosen the cylinder head bolts a few turns in the order shown.






Cylinder Head Installation Note
1. Measure the length of each bolt.
- Replace any that exceed the maximum length.
Standard length 99.2-99.8 mm {3.91-3.92 in}
Maximum length 100.5 mm {3.956 in}

Assembly:

2. Tighten the cylinder head bolts a few turns in the order shown.
Tightening torque: 17.2-22.0 N.m {1.75-2.25 kgf.m, 12.7-16.2 ft.lbf)






3. Put a paint mark on each bolt head.
4. Using the marks as a reference, tighten the bolts by turning each 85°- 95° in the sequence shown.
5. Further tighten each bolt by turning another 85°- 95°in the sequence shown.
Camshaft Installation Note
Caution:
Because there is little camshaft thrust clearance, the camshaft must be held horizontally while it is installed. Otherwise, excessive force will be applied to the thrust area, causing a burr on the thrust receiving area of the cylinder head journal. To avoid this, the following procedure must be observed.






1. Assemble camshaft onto the cylinder head, facing the cam noses at No.1 and No.3 cylinders as shown.

Note:
- Keep the camshaft sliding surface tree of sealant to prevent engine damage.
Thickness: 1.0 mm {0.04 in}
3. Apply engine oil to the camshaft and the cylinder head journals.
4. Install the camshaft caps to the positions from which they were removed.
5. Hand tighten the camshaft cap bolts marked 5, 7, 2, and 4.

Assembly:

6. Tighten the camshaft cap bolts a few turns in the order shown.
7. Verify that the camshaft settles horizontally when 2 bearing cap bolts at No.3 journal are tightened.
Tightening torque: 11.3-14.2 N.m {1.75-2.25 kgf.m, 12.7-16.2 ft.lbf)

8. Apply clean engine oil to the camshaft oil seal.
9. Push the oil seal slightly in by hand.






10. Tap the oil seals in evenly using the SST and a hammer






Camshaft Pulley Installation Note

1. Install the camshaft pulleys with the "I" mark (intake side) or "E" mark (exhaust side) straight up.






2. Hold the camshaft using a wrench on the cast hexagon as shown.