Mazda B-Series 1997 Workshop Manual page 101

B1
INSPECTION / REPAIR
mm {in}
Cylinder bore diameter
Piston color code
.
96.2228-95.994 {3.7883-3.77931
-
-
- - - - -
96.076-96.114 I3.7825-3.7840) Yellow
MB1235-C
Note
If a piston is replaced, the piston ring must also be
replaced.
Piston and Piston Rings
1. Measure the piston to ring land clearance around the
entire circumference by using a new piston ring.
Clearance
Top: 0.0414.084mm (0.0016-0.0033 in}
Second: 0.041--0.084mm (0.001 6-4.0033 in)
Oil Ring: Snug fit
Service Limit: 0.15mm (0.006 in} max
2. If the clearance exceeds the maximum, replace the
MB1029-A
piston.
3. Inspect the piston ring for damage, abnormal wear, or
breakage. Replace as necessary.
PISTON
RING
4. Insert the piston ring into the cylinder by hand and use
the piston to push it to the bottom of the ring travel.
Caution
Use care to avoid damage to the ring or the cylinder
bore.
5. Measure each piston ring end gap by using afeelergauge.
Replace the piston ring as necessary.
End
gap
Top: 0.20-0.41 mm (0.008-0.01 6 in)
Second: 0.33-0.48mm (0.01 3-0.01 9 in)
Oil Ring: 0.33-0.76mm (0.013-0.030 in)