Kubota ZD221-48 Workshop Manual page 117

ZD221 , WSM ENGINE
Push Rod Alignment
3EEABAB1 P124A
1. Place the push rod on V blocks.
2. Measure the push rod alignment.
3. If the measurement exceeds the allowable limit, replace the push
rod.
Push rod alignment Allowable limit
0.25mm
0.0098 in.
W10292900
3TMABAB 1 P062A
Oil Clearance between Tappet and Tappet Guide Bore
1. Measure the tappet 0.0. with an outside micrometer.
2. Measure the 1.0. of the tappet guide bore with a cylinder gauge,
and calculate the oil clearance.
3. If the oil clearance exceeds the allowable limit or the tappet is
damaged, replace the tappet.
Oil clearance between
Factory spec.
0.016 to 0.052 mm
0.00063 to 0.0020 in.
tappet and tappet guide
bore
Allowable limit
0.10 mm
0.0039 in.
TappetO.D.
Factory spec.
17.966 to 17.984 mm
0.70733 to 0.70803 in.
Tappet guide bore I.D. Factory spec.
18.000 to 18.018 mm
0.70866 to 0.70937 in.
W1051412
1-S45