Piston And Piston Pin; Connecting Rod - Mazda 626 1989 Workshop Manual

s
1B
INSPECTION AND REPAIR
1B—44
5. Measure each piston ring end gap with a feeler
gauge. Replace if necessary.
End gap
Top
Second: 0.15—0.30 mm (0.006—0.012 in)
Oil rail : 0.20—0.70 mm (0.008—0.028 in)
Maximum: 1.0 mm (0.039 in)

Piston and Piston Pin

1. Measure the piston pin hole diameter in X and Y
directions at four points.
Diameter:
21.988—21.998 mm (0.8657—0.8661 in)
2. Measure the piston pin diameter.
Diameter:
21.987—21.993 mm (0.8656—0.8659 in)
3. Determine the piston pin to piston clearance by
subtracting the two figures.
Clearance:
-0.005—0.011 mm (-0.0002—0.0004 in)
4. If the clearance exceeds the specification, replace
the piston and/or piston pin.
76G01B-067

Connecting Rod

1. Measure the connecting rod small end bore.
Diameter:
22.003—22.014 mm (0.8663—0.8667 in)
2. Check the clearance between the small end bore
and piston pin.
Clearance*
0.010—0.027 mm (0.0004—0.0011 in)
: 0.20—0.35 mm (0.008—0.014 in)