Ford Corsar Repair Manual page 82

CYLINDER BLOCK
F E /
Inspection (Cont'd)
2. Measure outer diameter of piston pin "Dp".
Standard diameter "Dp":
20.989
-
21.001 mm (0.8263
-
0.8268 in)
3. Calculate interference fit of piston pin to piston.
dp
-
Dp
=
0
-
0.004 mm (0
-
0.0002 in)
If it exceeds the above value, replace piston assembly with pin.
PISTON RING SIDE CLEARANCE
Side clearance:
Top ring
0.04
-
0.08 mm (0.0016
-
0.0031 in)
2nd ring
0.03
-
0.07 mm (0.0012
-
0.0028 in)
Max. limit of side clearance:
0.1 mm (0.004 in)
If out of specification, replace piston andlor piston ring assembly.
PISTON RING END GAP
End gap:
Top ring
0.28
-
0.43 mm (0.0110
-
0.0169 in)
2nd ring
0.45
-
0.60 mm (0.0177
-
0.0236 in)
(For rings punched with R or T.)
0.55
-
0.70 mm (0.0217
-
0.0276 in)
(For rings punched with N.)
Oil ring
0.20
-
0.60 mm (0.0079
-
0.0236 in)
Max. limit of ring gap:
0.5 mm (0.020 in)
If out of specification, replace piston ring. If gap still exceeds the
limit even with a new ring, rebore cylinder and use oversized piston
and piston rings.
Refer to S.D.S.
CONNECTING ROD BEND AND TORSION
Bend :
Limit 0.15 mm (0.0059 in)
per 100 mm (3.94 in) length
Torsion:
Limit 0.30 mm (0.0118 in)
per 100 mm (3.94 in) length
If it exceeds the limit, replace connecting rod assembly.