V70 XC AWD L5-2.4L Turbo VIN 56 B5254T (1998)
Lower compression ring: 1.75 mm
Oil scraper ring: 3.0 mm
6. Measure piston diameters:
Use micrometer tool No. 999 9704, or equivalent and sliding calipers.
A = Overall piston height.
B = Height from wrist pin center to crown.
C = Piston diameter must be measured at right-angles to wrist pin hole and at distance C from edge of skirt.
D = Diameter.
Dimensions A, B and C, see table.
Piston diameter: (D)
Piston marked C: 82.98-82.99 mm
Piston marked D: 82.99-83.00 mm
Piston marked E: 83.00-83.01 mm
Piston marked G: 83.017-83.032 mm
OS1: 83.177-83.192 mm
OS2: 83.377-83.392 mm
NOTE: Max. difference in weight between pistons in same engine: 10 g
7. Calculate piston clearance:
Cylinder diameter minus Piston diameter = Piston clearance.
Permissible piston clearance: 0.01-0.03 mm
NOTE: Measurement of cylinder bore as per steps 1 through 3 of "Cylinder Block, Measurement". See: Service and Repair