ENGINE
12. Check the small end bushes for wear, and if neces
sary renew using a suitable hand press to remove the
old bush and fit new. Ensure that the oil hole in the
bush corresponds with the hole in the connecting
rod. Ream the new bush to size—see Data. When
assembled dry, the gudgeon pin is a thumb push-
fit at 68°F room temperature. If the gudgeon pin
passes through the bore under its own weight, it is
too slack.
13. Check the connecting rods for bend and twist.
Use tools 335, and arbor adaptor S336-4—see Data.
Rods that exceed the tolerances in both conditions
should be renewed or re-aligned.
Refitting
14. Reverse instructions 2 to 5:
a
. Fitting oversize pistons as necessary.
b.
Fitting the piston rings with care and in the
following order: (A) expander ring into bottom
groove, ensure that ends are butting but not
overlapping, (B) bottom rail of expander from
bottom of piston, (C) top rail from top of piston,
(D) scraper ring—step uppermost to second
groove, (E) compression ring to top groove.
c.
Separating the ring gaps equally on the non
thrust side of piston.
15. Refit the connecting rods and pistons. 12.17.01.
DATA
Pistons
Bore size: Grade F
.................................................
Grade G
..
.....................................
Piston top diameter: Grade F ..
Grade G ..
Piston bottom diameter: Grade F
Grade G
.........................
Pistons a v a ilab le ............................................................
Groove width: b o t t o m ................................... .
centre and t o p .....................................
Ring width: bottom (oil control) 3-part
centre and top (compression)
Rings a v a i l a b l e ............................................................
Connecting rods
Small end bush (fitted) i.dia............................................
Gudgeon pin diameter
Connecting rod bend not to e x c e e d .........................
Connecting rod twist not to e x c e e d .........................
Connecting rod and piston assemblies
Weight variation between heaviest and lightest assembly
2*899 to 2*900 in (73*64 to 73*66 mm)
2*9010 to 2*9005 in (73*86 to 73*67 mm)
2*875 to 2*880 in (73*03 to 73*15 mm)
2*875 to 2*880 in (73*03 to 73*15 mm)
2*8976 to 2*8981 in (73*59 to 73*61 mm)
2*8982 to 2*8987 in (73*617 to 73*620 mm)
0*020 in (0*52 mm) oversize
0*1578 to 0*1588 in (3*99 to 4*01 mm)
0*064 to 0*065 in (1*625 to 1*650 mm)
0*1540 to 0*1560 in (3*90 to 3*96 mm)
0*0620 to 0*0625 in (1*575 to 1*5787 mm)
0*010, 0*020. 0*030 in (0*25, 0*51, 0*76 mm) oversize
0-8126 to 0*8129 in (20*64 to 20-65 mm)
0-8123 to 0*8125 in (20*63 to 20-64 mm)
0-0015 in (0*04 mm)
0-0045 in (0*114 mm)
Max 4 drams
Triumph Toledo Manual. Part N o. 545168. Issue 1
12.17.03
12.17.13 Sheet 2
Summary of Contents for Triumph Toledo
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Page 236: ...BODY n n Triumph Toledo Manual Part No 545168 Issue 1 76 10 01 Sheet 3 ...
Page 278: ...WINDSCREEN WIPERS AND WASHERS ...
Page 283: ...WIRING DIAGRAM TOLEDO RIGHT HAND STEER 1970 TO 1972 MODELS ELECTRICAL L 094 ...
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Page 329: ...INSTRUMENTS u 88 30 06 88 30 07 88 30 01 Triumph Toledo Manual Part No S4S168 Issue ...
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