Suzuki Ozark - Piston Ring Groove Width; Piston Ring Thickness; Piston Ring End Gap

3-36 ENGINE
PISTON RING TO GROOVE CLEARANCE
Using a thickness gauge, measure the side clearances of the
1st and 2nd rings. If any of the clearances exceeds the limit,
replace both piston and piston rings.
 Piston ring to groove clearance
Service Limit (1st) : 0.18 mm (0.0071 in)
(2nd): 0.15 mm (0.0059 in)
 Piston ring groove width
Standard (1st) : 1.01 – 1.03 mm (0.0398 – 0.0406 in)
(2nd): 1.21 – 1.23 mm (0.0476 – 0.0484 in)
(Oil) : 2.01 – 2.03 mm (0.0791 – 0.0799 in)
 Piston ring thickness
Standard (1st) : 0.97 – 0.99 mm
(0.038 – 0.039 in)
(2nd): 1.17 – 1.19 mm
(0.046 – 0.047 in)
 09900-20803: Thickness gauge
09900-20205: Micrometer (0 – 25 mm)
PISTON RING FREE END GAP AND END GAP
Before installing piston rings, measure the free end gap of each
ring using vernier calipers. Next, fit the ring in the cylinder, and
measure each ring end gap using a thickness gauge.
If any ring has an excess end gap, replace the ring.
 Piston ring free end gap
Service Limit (1st) : 7.0 mm (0.28 in)
(2nd): 7.2 mm (0.28 in)
 Piston ring end gap
Service Limit (1st) : 0.50 mm (0.020 in)
(2nd): 0.50 mm (0.020 in)
 09900-20101: Vernier calipers
09900-20803: Thickness gauge