Piston Rings Installation; Pistons Installation - Mazda B-Series 1997 Workshop Manual

ASSEMBLY
25.4
mrn {I IN)
@
25.4
mm {I inch)
I
FRONT
PISTON RING
OF
\ /
COMPRESSOR
Piston rings
Install the piston rings on the pistori using a piston ring
expander (commercially available).
Note
Piston rings must be staggered on the piston to
make sure the piston ring end gaps are not aligned.
If new piston rings are to be installed, and no visible
cross hatch marks remain on the cylinder wall, or
an unfinished cylinder wall, then the wall must be
refinished using a spring-type Cylinder Hone Set
T73L-6011 -A, or equivalent.
Never install piston rings with hands.
4BU081-116
Pistons
Note
All pistons, connecting rods, bearings and con-
necting rod bearing caps must be installed in the
original location from which they were removed.
1. Oil all pistons, piston rings and cylinder walls before
installation.
Caution
The connecting rod and bearing caps are num-
bered 1 to 4. The numbers on the connecting rod
and bearing cap must be on the same side after
installation.
2. Check the piston rings for correct gap alignment.
3. Install a piston ring compressor on the piston.
4. Push the piston into the cylinder block in with a hammer
handle until it is slightly below the top of the cylinder. Be
sure to guide the connecting rods to avoid damaging the
crankshaft journals.
Caution
lnstall the piston with the indentation notch in the
piston head toward the front olf the engine.