Suzuki F6A Service Manual page 72

Cylinder bore dia. limit
Taper and out–of–round limit
Piston and piston rings
S
Inspect the outer surface of each piston for evi-
dence of burn and for scratch or groove marks.
Minor flaws can be removed by sanding with fine
grain sandpaper.
S
De–carbon the piston crown and ring grooves,
using a soft metal scraping tool.
70
65.070 mm
(2.5618 in.)
0.10 mm
(0.0039 in.)
S
Piston
Diameter
S
Piston Diameter:
Piston to cylinder clearance, mentioned above,
is equal to the bore diameter minus the piston
diameter, which is to be measured by measuring
at the level of the piston in the direction trans-
verse to piston pin axis, as shown if figure below.
This level (H) for the skirt end is 15.0 mm (0.59
in.) high.
64.965 – 64.985mm
Standard
2.5577 – 2.5584 in.)
Oversize
65.215 – 65.235 mm
0.25 mm
(2.5676 – 2.5683 in.)
(0.0098 in.)
Oversize
65.465 – 65.485 mm
0.50 mm
(2.5774 – 2.5781 in.)
(0.0196 in.)
Ring clearance in the groove:
Using a thickness gauge, check each piston ring
in its groove for side clearance and if the limit
stated below is exceeded, measure the groove
width and ring width to determine whether the
piston or the ring or both have to be replaced.