Triumph 1971 250cc Parts Book

j ' I I. ¡ 1 1 1 ¡ I '. I I ! i ! I l. I t i I ~ i. I . I ·_ . ! I } ¡ . \ l ::· . . ........ Part No. S1916 S1917 51918 S1920 S1929 S2079 14-0604 14-6505-- 14-6607 14-6608 14-6609 14:-7019 14-7024 Part No. S25- 1 525- 2 S25-3 525-6 S25-13 Part No. S26- 1 526- 2 S26-16 S648 ** Double coil. Type of head Cheese head Cheese head Cheese head Hex. head · Countersu nk (82º) Cheese head · Cheese head · Counter sunk (82°) Cheese head Cheese head Cheese head Socket head Socket head Material Steel Steel Steel St eel Steel Material Spring Steel ) ' , , '' t' , , ' ' : se R E·W s · .. Mbter.ial Thd. dia . .J II UNC .L" UNC 4 .L 11 UNC 4 .L 11 UNC 4 . I li UNC 4 No. 10 UNF .L 11 UNF 4 J. 11 UNC 4 · .L 11 UNC 4 . .L 11 UNC 4 .L 11 UNC 4 2.. 11 UNC I 6 2.. 11 UNC I 6 . Steel · " " " " " " " " " " " . I W A S H E R S - P L A ,I N i/dia. 0.273 11 0.398 11 ·o.336 11 0.531 11 0.266 11 o/cfj,a. 0.-563 11 0.750 11 0.625 11 1.031 11 0.469" WASHERS~SPRING i /dia. ~ 11 clearance J 'i clearance I 7 11 32 1\ 11 clearance o/dia. I 9 11 32 I 3 11 32 7 11 ë I II 2 ·' . :: 57 Length under head 1.L li . 8 21 11 8 2 1.11 8 2111 64 I 7 11 32 I li 2 I II 2 7 11 8 7 11 ã 1 li 1.L /I 4 7 li ii' 2" Type of drive \ \ Cross recess · ' ' Cross recess 1 \ Cross recess Slot Pozidrive Cross recess Cross recess Cross recess Cross recess Cross recess Hex. socket Hex. socket Thickness 0.048" · 0.063 11 0.063" 0.092" 0.064 11 o/a height 7 /I 32 3 11 TI' 7 11 T :i 5 /I 32 Thickness . '0.104 1' 0.064 11 0.040** 0.080¡' . , .. . .. • .