Piston Ring Gap and Groove Clearances
COMPRESSION RING TYPENo.1 Barrel Type, Steel
No.2 Taper Type, Special Cast Iron
Oil Ring Type 3-piece Type
NUMBER OF RINGS PER PISTON
Compression Rings 2
Oil Ring 1
RING END GAP
No.1
Standard Value 0.45-0.60 mm (0.0175-0.0234 inch)
Wear Limit 0.8 mm (0.031 inch)
No.2
Standard Value 0.2-0.6 mm (0.0175-0.0234 inch)
Wear Limit 0.8 mm (0.031 inch)
Oil Ring Side Rail 0.30-0.45 mm (0.0118-0.0177 inch)
RING SIDE CLEARANCE
No.1
Standard Value 0.03-0.97 mm (0.0012-0.0037 inch)
Wear Limit 0.1 mm (0.004 inch)
No.2
Standard Value 0.02-0.06 mm (0.0008-0.0024 inch)
Wear Limit 0.10 mm (0.0040 inch)
RINGS FOR SERVICE (OVERSIZE)
1st O.S. 0.25 mm (0.0100 inch)
2nd O.S. 0.50 mm (0.0200 inch)
3rd O.S. 0.75 mm (0.0300 inch)
4th O.S. 1.00 mm (0.0400 inch)