Cub Cadet 8454 Service Manual page 77

(D) Piston ring end gap
1. Push the ring into the cylinder to the lower limit of
the ring travel in the assembled engine with a piston.
2. Measure the ring gap with a feeler gauge.
3. If the gap exceeds the allowable limit, replace the
piston ring.
Piston 2nd Factory
ring ring spec.
end
Allowable
gap
limit
Factory
Top
spec.
ring,
oil ring
Allowable
limit
(E) Piston ring clearance
1. Clean the ring and the ring grooves, and install each
ring into its groove.
2. Measure the clearance between the ring and the
groove with a feeler gauge.
3. If the clearance exceeds the allowable limit, replace
the piston ring.
4. If the clearance still exceeds the allowable limit with
a new ring, replace the piston.
Piston 2nd Factory
ring ring spec.
clear-
Allowable
ance
limit
Oil ring Factory
spec.
Allowable
limit
D569-W02 May-2003
K&T Saw Shop 606-678-9623 or 606-561-4983
www.mymowerparts.com
0.55 ~ 0.70 mm
0.0217 ~ 0.0276 in.
1.25 mm
0.0492 in.
0.25 ~ 0.40 mm
0.0098 ~ 0.0157 in.
1.25 mm
0.0492 in.
0.04 ~ 0.08 mm
0.00157 ~ 0.00314 in.
0.15 mm
0.0059 in.
0.02 ~ 0.06 mm
0.00079 ~ 0.00236 in.
0.15 mm
0.0059 in.
ENGINE
569W2A5A
569W2A6A
2-55