5. Inspection and servicing of basic engine parts
124R1
5.4.3 Piston pin bushing
(1) Measuring piston pin clearance.
Excessive piston pin bushing wear may result in
damage to the piston pin or the piston itself.
Measure the piston pin bushing inside diameter and
the piston pin outside diameter. Calculate the oil
clearance from the measured values. (Refer to 5.3.2
for the piston pin.)
5.4.4 Assembling piston and connecting
rod
The piston and connecting rod should be assembled so
that the match mark on the connecting rod large end
faced the fuel nozzle side and the combustion chamber
above the piston is close to the fuel nozzle.
mm
Standard
Limit
Piston pin metal
I.D.
22.025-22.038
22.068
Pin O.D.
21.991-22.000
21.963
Clearance
0.025-0.047
0.105
Cylinder gage
(Connecting rod small end)
Piston ID mark
(Camshaft side)
(Nozzle side)
Piston ID mark
Embossed mark
(Flywheel side)
Match mark
Cylinder size mark
(Flywheel side)
Assembly direction of connecting
rod and piston
(
)
Содержание 3YM30
Страница 1: ...M9961 03E101 3YM30 3YM20 2YM15...
Страница 22: ...1 General 1 4 Engine outline 1 3YM30 with KM2P 1 marine gear 6R1...
Страница 23: ...1 General 2 3YM30C with SD20 sail drive 7R1...
Страница 24: ...1 General 3 3YM20 with KM2P 1 marine gear 8...
Страница 26: ...1 General 5 2YM15 with KM2P 1 marine gear 9 2R1...
Страница 27: ...1 General 6 2YM15C with SD20 sail drive 185 9 3R1...
Страница 30: ...1 General 3 2YM15 with KM2P 1 marine gear 11 2R1...
Страница 31: ...1 General 11 3R1 4 2YM15C with sale drive SD20...
Страница 46: ...2 Inspection and adjustment 26 Cylinder head Bracket Fuel filter Fuel pipe Fuel injection pump Clamp Fuel pipe...
Страница 160: ...6 Fuel injection equipment 139 6 1 3 Fuel injection pump structure Section of a fuel injection pump governor for 3YM30...