CHAPTER 2 8354/8404
2-52
D615-W02 May-2003
615W2A7A
615W2A8A
(E)Idle gear oil clearance
1. Measure the idle gear shaft O.D. with an outside
micrometer.
2. Measure the idle gear bushings I.D. with an inside
micrometer.
3. If the clearance exceeds the allowable limit, replace
the bushing.
(F) Replacing idle gear bushings
1. Press out the bushings using an idle gear bushing
replacing tool.
2. Clean the bushings and the bore, and apply oil to
them.
3. Press in the bushing using the replacing tool.
Oil
clearance
Shaft
O.D.
Bushing
I.D.
Factory
spec.
Allowable
limit
Factory
spec.
Factory
spec.
0.025 ~ 0.066 mm
0.00098 ~ 0.00259 in.
0.1 mm
0.004 in.
37.959 ~ 37.975 mm
1.4944 ~ 1.4950 in.
38.000 ~ 38.025 mm
1.4961 ~ 1.4970 in.
615W2A6A
(D)Injection pump gear side clearance
1. Pull the fuel camshaft and pull the injection pump
gear (1) to each end.
2. Measure the clearance A between the injection pump
gear (1) and the snap ring (2) on the fuel camshaft.
3. If the clearance exceeds the allowable limit, check
the gear, the bearing and the key.
Side
clearance
Factory
spec.
Allowable
limit
0.15 ~ 0.57 mm
0.0059 ~ 0.0224 in.
0.9 mm
0.035 in.
(1) Injection Pump Gear (2) Snap Ring
www.mymowerparts.com
K&T Saw Shop 606-678-9623 or 606-561-4983
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