Page from a service manual detailing throttle opener control system inspection and adjustment, including graphs.
1i 2) EXHAUST EMISSION CONTROL Throttle Opener Control System (T.O.C.S.) Race engine and check for adjustment. If engine speed does not drop to idling speed when checking throttle opener operating pressure, proceed as follows: Turn adjusting screw counterclockwise so that throttle opener operating pressure is on high vacuum side, 3.3 kPa (25 mmHg, 0.98 ian) above the specified value. Turn adjusting screw 1/4 of a turn clockwise so that throttle opener operating pressure drops by 3.3 kPa (25 mmHg, 0.98 ian). Inspection and Adjustment (Cont'd) 10. If throttle opener operating pressure cannot be 1) 2) observed clearly even in step 9, proceed as follows. Turn adjusting screw counterclockwise so that throttle opener operating pressure is on high vacuum side 6.7 kPa (50 mmHg, 1.97 ian) above the mid-point of the specified range. Turn adjusting screw 1/2 of a turn clockwise. The throttle opener operating pressure should be correctly set within the specified range after the above adjustment, even if the engine speed cannot be decreased to idling. (inHu) Is?- an lmmHu) no kPa 29 (750) lmmHg) iinHa) 24,- 2: ma 9:: two) 1: 2, (7m, 22- 26 73::- a (55m 21_ 25 (also) a g 20- 24 i :1 35]- eon ' a <7 5 no 5 (5 l 1,_ 23 icon) E 5 s 5 m- 22 a a mo 13.: E 450 < o l l '7 2' (550) 1 _ 513 5 2 66.7 1400) 3" (son) 15- 46.7 I360) 1::- M a low 2 3000 000 (cum . .ooo , 6. 5.009 soon in) I-_.%.__, a 0.5 I 1.5 2 (ka Altitul sEczsgA
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