Crankshaft Timing Gear; Main Bearing Supports; Main Bearing Support, Gear Side; Main Bearing Support, Flywheei Side - Kohler KD 625/2 Workshop Manual

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KD 625-2 Workshop Manual_cod. ED0053029380_1° ed_ rev. 00
Disassembly / Reassembly

Crankshaft timing gear

Disassembly:
Use tool 1 (Part N°. 7560-4000-052) and puller 2 (Part N°. 7271-1460-
119) to remove the gear.
Reassembly:
Heat the gear uniformly and keep it at a temperature of 300 °C for 15
– 20 minutes.
Caution – Warning
Danger of burning: pay attention to the hot surfaces.
Insert the gear into its seat by inserting the activation key into the
gear opening and push until it comes into contact with the driving
shaft.
Let it slowly cool down.

MAIN BEARING SUPPORTS

Main bearing support, gear side

Remove main bearing by means of two M8x1.25 screws with fully thre-
aded length of 40 mm or a puller (Part N°. 7271-1460-119).
Note: To avoid deformation it is not recomended to replace the bearing
bushing, complete assembly's of bushing and support are availa-
ble in standard, 0.25 mm and 0.50 mm undersize configurations
as spare parts.
 When refitting tighten the screws at 30 Nm.

See page 44 ÷ 45 for dimensions.

Main bearing support, flywheeI side

Remove it by means of two M8x1.25 screws with fully threaded length
of 40 mm.
Check oil seal ring and replace if warped, hardened or worn-out.
When refitting, tighten nuts at 30 Nm.


See end float on page 45 for gasket replacement detaiis.

See page 44 ÷ 45 for dimensions.
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