Piston to Cylinder Bore - Clearance

PISTON-TO-BORE CLEARANCE
Standard inner diameter: ............86.000 - 86.030 mm (3.3858 - 3.3870 inch)
Wear limit: ..............0.20 mm (0.0079 inch)
Out-of-round (X - Y) standard: ............0.015 mm (0.0006 inch)
Taper (A - B and A - C) standard: .........0.010 mm (0.0004 inch)


Piston-to-bore clearance = bore measurement "C" - Piston diameter "A": 0.010 - 0.030 mm (0.0004 - 0.0012 inch)


Cylinder bore size is determined by adding piston-to-bore clearance to piston diameter "A".

Rebored size calculation:
D = A + B - C where,
D......Bored diameter
A......Piston diameter as measured
B......Piston-to-bore clearance
C......Honing allowance 0.02 mm (0.0008 inch)