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40 Workshop Manual, TPD 1377E, issue 4
100 Series
Valve spring
To inspect Operation 3-16
Special requirements
1 Visually inspect the valve spring for damage. A new spring (A1) and a worn spring (A2) are shown.
2 Using a spring tester, check spring force and free length. Renew if found to be beyond the service limit.
Engine model
Free length (A3) mm (in)
Standard Service limit
102-05, 103-07 33,0 (1.299) 31,5 (1.240)
103-10, 103-13, 103-15, 104-19, 104-22 35,0 (1.378) 33,5 (1.319)
Engine model
Spring rate when compressed to
30,4 mm (1.197 in) N (lbf) kgf
Standard Service limit
102-05, 103-07 68 (15.2) 6,9 59 (13.2) 6,0
103-10, 103-13, 103-15, 104-19, 104-22 79 (17.9) 8,1 69 (15.4) 7,0
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This document has been printed from SPI². Not for Resale
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