Hyundai HDF 50-7S, Руководство по обслуживанию

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INSPECTION AND REPAIR OF BASIC ENGINE
6-14
3.9 Replacing idler shaft
To remove the idler shaft, use the idler shaft puller.
Note: When installing the idler shaft into the crankcase,
orient the idler shaft so that its oil hole faces the upper
crankcase.
Replacing idler shaft
3.10 Measuring clearance between tappet and
tappet guide hole
Measure clearance between the tappet and tappet hole.
Replace the tappet with a new one if the limit is exceeded.
Measuring clearance between tappet and tappet guide
hole
3.11 Inspecting tappet
3.11.1 Contact surface of camshaft
Inspect the cam contact surface of the tappets. Fit new
tappets if the surface is excessively worn or damaged.
Contact surface of camshaft
3.11.2 Contact surface of push rod
(1)
Apply a lead-free coloring paste on the push rods, and
check the contact surface.
(2)
Check that the push rod contacts the tappet
concentrically. If it does, replace the tappet and push
rod with new one.
Contact surface of push rod
Item Nominal Standard
Interference between shaft and
crankcase hole ø 35 mm
[1.38 in.]
0.035T to 0.076T mm
[0.0014 to 0.0030 in.]
Idler shaft puller
P/N:MH061077
Item Standard Limit
Tappet guide hole
inside diameter 14.000 to 14.018 mm
[0.5512 to 0.5519 in.]
14.100 mm
[0.5551 in.]
Clearance between tappet
and tappet guide hole 0.016 to 0.052 mm
[0.0006 to 0.0020 in.]
0.08 mm
[0.0031 in.]
Measuring
points Measuring
directions
Good Bad Bad
A
A
Good Bad
Push rod should not contact tappet concentrically.
It should be round.
Dents should not
exist.
Section A-A
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