Ruggerini RY 50 - Valve, Springs; Valves - Disassembly; Valves

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17-04-2003

15-01-2004

DATE

COMPILER TECO/ATI

REG. CODE

1-5302-584

MODEL N°

50871

DATE OF ISSUE

REVISION

ENDORSED

VIII

25 26

23 24

DISASSEMBLY/REASSEMBLY

Valves - Disassembly

Components:

1 Valve stem

2 Oil seal

3 Spring washer/set

4 Spring

5 Cap

6 Half collets

Note: To remove half collets place a suitable plate under the valve

head and press down firmly as indicated in the figure.

Valves - Oil seal in valve guide

To prevent seal 2 from being deformed when the valve guide is

mounted, fit it into tool 1 serial N° 7107-1460-047 after having

thoroughly lubricated it, then proceed as indicated in the figure.

Valve, springs

Measure the free length with a caliper.

Engine RY 50-70-75

Free length A = 33.72

Engine RY 103-110

Free length A = 34,88

Note: Replace the spring if the free length A is 1 mm less than

specified.

Ruggerini RY 50 - Valve, Springs; Valves - Disassembly; Valves - Oil Seal in Valve Guide