Timing Chain - Installation (Cont'd) - Cylinder Head (SR20DE)
EM-91prose procedureThis page covers SR20DE cylinder head bolt tightening. Step 13 distinguishes SR20DE (head with intake and exhaust manifolds) from SR20DET (head with intake manifold). SR20DE head bolts reusable if dimension A <= 158.2 mm (6.23 in).
Installation (Cont'd)
- 13SR20DE: Install cylinder head with intake and exhaust manifolds. SR20DET: Install cylinder head with intake manifold.The cylinder head bolts of SR20DE can be reused providing dimension "A" is not exceeded. Dimension "A": 158.2 mm (6.23 in)
CAUTION
The cylinder head bolts of SR20DE can be reused providing dimension "A" is not exceeded. Dimension "A": 158.2 mm (6.23 in)
Tightening procedure (SR20DE)
- 1(a) Tighten all bolts to 39 N·m (4.0 kg-m, 29 ft-lb).
- 2(b) Tighten all bolts to 78 N·m (8.0 kg-m, 58 ft-lb).
- 3(c) Loosen all bolts completely.
- 4(d) Tighten all bolts to 34 to 44 N·m (3.5 to 4.5 kg-m, 25 to 33 ft-lb).
- 5(e) Method A: Turn all bolts 90 to 100 degrees clockwise with Tool or suitable angle wrench. Method B: If angle wrench is not available, mark the side of each cylinder head bolt with a paint mark facing the front of the engine, then turn all bolts 90 to 100 degrees clockwise.
- 6(f) Turn all bolts 90 to 100 degrees clockwise. Ensure that paint mark on each bolt faces the rear of the engine. (Method B only)Do not turn any bolt 180 to 200 degrees clockwise all at once.
SR20DE cylinder head bolt tightening torque
a
Tightening torque N·m (kg-m, ft-lb)39 (4.0, 29)
b
Tightening torque N·m (kg-m, ft-lb)78 (8.0, 58)
c
Tightening torque N·m (kg-m, ft-lb)0 (0, 0)
d
Tightening torque N·m (kg-m, ft-lb)39 ± 5 (4.0 ± 0.5, 28.9 ± 3.6)
e
Tightening torque N·m (kg-m, ft-lb)90 +10 -0 degrees
f
Tightening torque N·m (kg-m, ft-lb)90 +10 -0 degrees