Bolt sequence: ____ | C A F | | E B D | ----- B: INSTALLATION 1) Install the cylinder head and gaskets on cylinder block.
CAUTION: • Replace cylinder head gaskets with new ones. • Be careful not to scratch the mating surface of cylinder block and cylinder head.
2) Tighten the cylinder head bolts.
(1) Apply a coat of engine oil to the washers and bolt threads. (2) Tighten all bolts to 29 N·m (3.0 kgf-m, 22 ftlb) in alphabetical sequence. (3) Tighten all bolts to 69 N·m (7.0 kgf-m, 51 ftlb) in alphabetical sequence. (4) Back off all bolts in reverse order of assembly by 180° first; back them off by 180° again. (5) Tighten bolts A and B to 34 Nm and bolts C-D to 15 Nm (6) Tighten all bolts by 90° (7) Tighten all bolts a further 90°
CAUTION: Do not tighten bolts more than 90° in total angle
Answers & Comments
According to the manual for a EJ25:
Bolt sequence:
____
| C A F |
| E B D |
-----
B: INSTALLATION
1) Install the cylinder head and gaskets on cylinder block.
CAUTION:
• Replace cylinder head gaskets with new ones.
• Be careful not to scratch the mating surface of cylinder block and cylinder head.
2) Tighten the cylinder head bolts.
(1) Apply a coat of engine oil to the washers and bolt threads.
(2) Tighten all bolts to 29 N·m (3.0 kgf-m, 22 ftlb) in alphabetical sequence.
(3) Tighten all bolts to 69 N·m (7.0 kgf-m, 51 ftlb) in alphabetical sequence.
(4) Back off all bolts in reverse order of assembly by 180° first; back them off by 180° again.
(5) Tighten bolts A and B to 34 Nm and bolts C-D to 15 Nm
(6) Tighten all bolts by 90°
(7) Tighten all bolts a further 90°
CAUTION:
Do not tighten bolts more than 90° in total angle