Maintenance
0330−1/A1
Winterthur Gas & Diesel Ltd.
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Clearance Table
1. General 1..........................................................
Crankshaft and Thrust Bearing 2....................................
Crankshaft and Main Bearing 4......................................
Crosshead Guide 6.................................................
Cylinder Liner 8....................................................
Piston Rod Gland 10.................................................
Exhaust Valve 12....................................................
Top and Bottom End Bearings to Connecting Rod 14...................
Piston Cooling and Crosshead Lubricating Link 16....................
Piston and Piston Rings 18...........................................
Driving Wheels for Supply Unit 20....................................
Fuel and Servo Pump Units 22........................................
Fuel Pump 24.......................................................
Integrated Electric Balancer 26.......................................
1. General
The clearances in the columns Nominal Dimension in the tables that follow are related
to design and manufacturing values, or to the settings on a new engine.
The values given in the columns Maximum Clearance, Dimension are the possible
results after a long period of operation. The differences in the clearances must not be
less than or more than those given.
On components where the clearance is adjustable (changed thickness of shims,
discs, spacers etc) the values must be those given in Usual Clearance. Where this is
not possible, you must replace worn parts with standard new parts, or reconditioned
with applicable material buildup.
If, during an overhaul, clearances are measured that are almost at the permitted limit,
personnel must make a decision to:
D Replace a component part, or
D Let the item stay installed until the next overhaul.
This is related, for example, on the length of the next operation period until the next
overhaul and what wear has to be expected based on experience gained.
2016−02
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