Workshop Manual

S-57
05-E2B, 05-E2BG, WSM
DIESEL ENGINE
Piston Ring Gap (Continued)
W1043413
Clearance between Piston ring and Piston Ring Groove
1. Clean the rings and the ring grooves, and install each ring in its
groove.
2. Measure the clearance between the ring and the groove with a
feeler gauge or depth gauge.
3. If the clearance exceeds the allowable limit, replace the piston
ring.
4. If the clearance still exceeds the allowable limit with new ring,
replace the piston.
W10312390
Piston ring gap
[D905-E2BG]
[D1005-E2BG]
[V1305-E2BG]
Top ring
Factory
spec.
0.25 to 0.40 mm
0.0098 to 0.0157 in.
Allowable
limit
1.25 mm
0.0492 in.
Second ring
Factory
spec.
0.25 to 0.40 mm
0.0098 to 0.0157 in.
Allowable
limit
1.25 mm
0.0492 in.
Oil ring
Factory
spec.
0.25 to 0.40 mm
0.0098 to 0.0157 in.
Allowable
limit
1.25 mm
0.0492 in.
Piston ring gap
[D1105-E2BG]
[V1505-E2BG]
Top ring
Factory
spec.
0.30 to 0.45 mm
0.0118 to 0.0177 in.
Allowable
limit
1.25 mm
0.0492 in.
Second ring
Factory
spec.
0.30 to 0.45 mm
0.0118 to 0.0177 in.
Allowable
limit
1.25 mm
0.0492 in.
Oil ring
Factory
spec.
0.25 to 0.40 mm
0.0098 to 0.0157 in.
Allowable
limit
1.25 mm
0.0492 in.
Clearance between
piston ring and piston
ring groove
Second
ring
Factory
spec.
0.085 to 0.112 mm
0.0033 to 0.0044 in.
Allowable
limit
0.20 mm
0.0079 in.
Oil ring
Factory
spec.
0.020 to 0.055 mm
0.0008 to 0.0021 in.
Allowable
limit
0.15 mm
0.0059 in.
Factory specification : a
More than 0.2 mm
0.0079 in.
(A) Top Ring (Key Stone Type) (B) 2nd, Oil Ring
KiSC issued 06, 2011 A