Cub Cadet 8404 - Manual (Page 76)

CHAPTER 2 8354/8404
2-54 D615-W02 May-2003
11
10
9
615W2B4A
615W2B3A
(B) Piston pin and brushing clearance
1. Measure the piston pin O.D. with an outside
micrometer.
2. Measure the piston pin busing I.D. with an inside
micrometer.
3. If the clearance exceeds the allowable limit with new
bushing, replace the piston pin.
(C)Replacing piston pin bushing
1. Press out the bushing, using a piston pin bushing
replacing tool.
2. Clean the new bushing and the bore and apply oil
to them.
3. Press in the bushing, using the replacing tool.
IMPORTANT:
• Align the oil holes of the connecting rod and the
bushing.
Piston pin
and
bushing
clearance
Piston pin
O.D.
Bushing I.
D.
Factory
spec.
Allowable
limit
Factory
spec.
Factory
spec.
0.014 ~ 0.038 mm
0.00055 ~ 0.00150 in.
0.15 mm
0.0059 in.
25.002 ~ 25.011 mm
0.98433 ~ 0.98469 in.
25.025 ~ 25.040 mm
0.98524 ~ 0.98583 in.
615W2B2A
3) Connecting rod and piston
(A) Piston pin bore
1. Measure the I.D. of piston pin bore in piston (length-
wise and widthwise of the piston) with a cylinder
gauge.
2. If the measurement exceeds the allowable limit, re-
place the piston.
Piston Pin
bore I.D. Factory
spec.
Allowable
limit
25.000 ~ 25.006 mm
0.9843 ~ 0.9845 in.
25.03 mm
0.9854 in.