DISASSEMBLY OF BASIC ENGINE
5-8
3. Disassembling and inspecting gear case, timing gears and camshaft
Disassembling and inspecting gear case, timing gears and camshaft
Disassembling sequence
Replace: Sealing cap



 
Fatigue and crack
Fatigue and crack
Damage and wear
Wear, damage, aging of lip surface
Replace: Gasket
Replace: Gasket
Replace:
Gasket
Replace:
O-ring
Replace: O-ring
Clogged oil hole
Crack, abnormal knock hole, clogged oil hole



Flaking, wear, deformation and key groove wear
Damage, wear, abnormal key groove
Rotation condition



Wear and damage
of sliding sleeve
Wear and damage of
sliding shaft contact

Replace:
Gasket






















Wear of cam contact
surface and
circumference contact
surface
Wear and damage of weight
1 Tappet 13 Relief spring 25 Camshaft
(Remove parts 23 to 25 as a unit)
2 Oil pump cover 14 Relief plunger
3 Gear pump housing 15 Grooved pin 26 Sliding shaft
4 Crankshaft pulley 16 Governor shaft 27 Governor weight
5 Gear case 17 Tension lever 28 Fuel injection pump camshaft gears
6 Ball bearing 18 Governor lever 29 Ball bearing
7 PTO gear 19 Governor spring lever 30 Snap ring
8 Ball bearing
(Remove parts 6 to 8 as a unit)
20 Grooved pin 31 Ball bearing
21 Speed control lever 32 Fuel injection pump camshaft
(Remove parts 28 to 32 as a unit)
9 Oil pump housing 22 Idler gear
10 Oil pump outer gear 23 Camshaft gear 33 Torque spring set
11 Oil pump inner gear 24 Ball bearing 34 Front plate
12 Plug
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