Kohler RD 441

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Workshop Manual KD 441_cod. 1.5302.865_2
nd
ed_ rev. 01.
142
141
140
139
7
5 4 3 2 1
11 10 9 8 7
Oil pump
Components:
1 Cover
2 Shaft
3 Key
4 Pin
5 Internal rotor
6 External rotor
Oil pump delivery at 3000 rpm is 5.8 l/min.
Internal strainer
Placedinsidethebottomcap(seegure).
Oil pressure regulation valve
Components
7 Plunger
8 Spring
9 Washer
10 Cup
11 Snap ring
Free length A of the spring is 25.50÷25.75 mm.
Note: If A is 1 mm less than the given value, replace the valve.
Valve setting is not adjustable.
Oil pump - Clearance between rotors
Measure clearance as shown in the gure; the max. value is 0.13
mm; wear limit 0.25 mm.
Lubrication system