Crankshaft Front And Rear Oil Seal; Crankshaft Timing Gear; Crankshaft Lubrication Ducts - Kohler KDW 1603 Workshop Manual

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Workshop Manual KDW 1603_2204_2204/T _ cod. ED0053029180 - 1° ed_rev. 00
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Disassembly / Reassembly

Crankshaft front and rear oil seal

The front oil seal A is located in the oil pump cover while the
rear oil seal ring B, is positioned in the flange on the flywheel
side.
Replace seals if warped, hardened or damaged.
In case of replacement:
• Carefully clean the seat.
• Soak the seal in engine oil for approximately half an hour.
• Fill the inside with grease and lubricate and sealing lip with
thick oil.
• Drive the seal into its seal exerting a uniform pressure over
the entire front area.
Warning: In case of room temperature below -35°C seals could
become damaged.

Crankshaft timing gear

If gear A has to be replaced, use a bearing puller to remove it.
To reassemble it, you need to heat it up to a temperature of 180°
÷ 200°C and then fit it snugly.

Crankshaft lubrication ducts

Important
During repair operations, when using compressed air, wear
eye protection.
Dip crankshaft into a bath (use a cleaning product).
Remove plugs and clean ducts A, B and C with a pointed tool.
Finally blow with compressed air.
Re-place plugs using a calking tool and check for sealing.
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