V70 GL L5-2.4L VIN 55 B5254S (1998)
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Lower compression ring: 1.75 mm
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Oil scraper ring: 3.0 mm
6. Measure piston diameters:
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Use micrometer tool No. 999 9704, or equivalent and sliding calipers.
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A = Overall piston height.
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B = Height from wrist pin center to crown.
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C = Piston diameter must be measured at right-angles to wrist pin hole and at distance C from edge of skirt.
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D = Diameter.
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Dimensions A, B and C, see table.
Piston diameter: (D)
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Standard
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
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Oversize
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:
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Measured:
Cylinder diameter minus Piston diameter = Piston clearance.
Permissible piston clearance: 0.01-0.03 mm