Pistons/Piston Rings/Piston Pins - Suzuki F6A Service Manual

PISTONS/PISTON RINGS/PISTON PINS

Pistons are made of aluminum alloy and have a slipper skirt, with a valve recess provided at the top of the piston. The
first ring increases initial conformity having a barrel face form, and the second ring increases oil run–off properties with
a tapered undercut form. The first ring is provided with chrome plating and has increased durability on the outer
circumference of the oil ring and on the outer circumference of the second ring in turbo models. A full floating type piston
pin is used, reducing friction.
Model
st
1 Ring
2.3
nd
2 Ring
2.6 or 2.7
Spacer Side Rail
Oil Ring
2.5
Piston Specifications
Top part volume (cc) undercut
Outer diameter (mm)
Height from boss
center to top (mm)
1.0
Internal diameter of pin (mm)
1.2
Piston Pin Specifications
2.0
Pin outer diameter (mm)
Pin length (mm)
Piston Ring Specifications
Width (mm)
Thickness (mm)
Form
Peripheral area plating
Model
1.4
φ64.965~φ64.985
25.5
φ16.006~φ16.014
Model
φ15.995 ~φ16.005
49.5
Model
1st 2nd
1.2
1.0
2.3 2.6 or 2/7
Tapered
Barrel
undercut
face type
type
Yes No
Oil
2.0
2.5
Assembly
type
Yes
49