Cylinder Head (3.0L) - Mazda B-Series 1997 Workshop Manual

ON-VEHICLE MAINTENANCE
1 *'
0
FRONT OF ENGINE
FRONT OF ENGINE
I
Installation note
Cylinder head
1. Lay a clean shop rag in the tappet valley to catch any
gasket particles. Clean the cylinder hlead, intake manifold
and the cylinder head to block gasket surfaces. After
scraping, lift the cloth so no gasket material falls into the
holes. Check the cylinder head anti the cylinder block
gasket surfaces for flatness. (Refer lo page B2-36.)
Caution
Gouges in aluminum components will cause gas-
kets to leak.
2. Position the new head gasket(s) on the cylinder block
using the dowels for alignment. Make sure the gasket is
aligned as shown in the figure.
Note
Replace the alignment dowels if they are damaged.
3. Carefully position the cylinder head(s) on the cylinder
block.
4. Install the new bolts and hand tighten.
5. Tighten the bolts in sequence as shown in the figure.
Tightening torque:
80 N.m (8.1 kgf-m, 59 ft-lbf)
6. Back off all of the bolts a minimum of one full turn (360").
7. Re-tighten the bolts, in the sequence illustrated, in two
steps.
Tightening torques:
Step 1 : 45-55 N m (4.5-5.5 klgf m, 33-41 ft
.
lbf)
Step 2: 85--99 N
.
m
(8.5-9.9 kgf m, 63-73 ft
-
Ibf)
Note
When the cylinder head bolts have been tightened
using the above procedure, it is not necessary to
retighten the bolts after extended engine opera-
tion.