Honing Cylinders - Mitsubishi K3G Manual

1 • 11 Cylinder Block

• Honing Cylinders

Perform the honing in the following manner.
Oversiz. e pistons
Size
STD
OS 0. 25
OS 0. 55
OS 0. 75.
CAUTION
@ All cylinders sh· o uld be honed to the same oversize.
(I )
Oversize pistons are available in the following
size:
0.25, 0.50 and 0. 75
(2) Honing allowance
The cylinder must be finished to the size called
for by the piston to be installed within the
tolerance shown below under consideration of
0. 02 mm of honing allowance.
(3) Honing tolerance
Nominal dia.
Nominal dia. of oversize piston
to be installed
Example : 0. 50
Nominal dia. =82. 50 mm Tolerance
Size mark
(DDetermination of boring
Not available finish size
( O.D. of oversize piston)+ (Clearance)
0.25
- (Honing allowance (0. 02 mm))
0.50
o.
75
Tolerance
+o.
03
0
+ o3
g.
82. 5o
=
-68-
©Clearance (between piston and
cylinder), standard:
0.035-0.086