Chevrolet 10 series 1973, Overhaul Manual

Page: 474 / 522

SPECIFICATIONS 15
OTHER ADJUSTMENTS
PASSENGER CARS - EXCEPT VEGA
NOTE: Refer to “Additional External Settings and Adjustments'Vor "Idle Stop Solenoid Adjustment"
and "CEC Valve Adjustment, as applicable, in Section 6M (Service Manual), under carburetors
before using the following charts.
NOTE: All idle speeds listed are to be set with air conditioning OFF.
UNLESS OTHERWISE N O T IF IE D - ALW AYS USE C U R R E N T SPECIFI­
CATIONS T H A T AGREE W ITH THE “ V EH IC LE EMISSION CONTROL
IN F O R M A T IO N " STICKER (ON THE V E H IC L E ).
EQUIPMENT
COLUMN No. 1
(See Note Above)
COLUMN No. 2
(See Note Above)
COLUMN No. 3
(See Note Above)
Transmission
Engine
Initial Curb Idle
Speed (RPM)
Final Curb Idle
Speed (RPM)
C.E.C. Valve
Engine Speed
(RPM)
(4)
Use Lean Drop Method - except where 1/4 turn
rich from lean roll below is specified as footnote
(1). (See Procedures in Section 6M — Service)
Manual
(In Neutral)
(2)
L-6 250 C.I.D. 750
700 (3) 850
V-8 307 C.I.D.
(L-14)
950 900 (3)
-
V-8 350 C.I.D.
(L-65)
1000 900 (5)
V-8 350 C.I.D.
(L-48)
920 (1)
900 (3)
V-8 350 C.I.D.
(Z-28 & L-82)
V-8 454 C.I.D.
(LS-4)
925
Autom atic
(In Drive)
(2)
L-6 250 C.I.D.
630
600 (3)
-
V-8 307 C.I.D.
V-8 350 C.I.D.
(L-65)
V-8 400 C.I.D.
(LF-6)
600 (5)
600 (3)
V-8 350 C.I.D.
(L-48)
620 (1)
V-8 350 C.I.D.
(Z-28 & L-82)
720 (1) 700
MK IV-454
C.I.D. (LS-4)
625
600 (3)
(1) 1/4 turn rich from lean roll (mixture screw).
(2) With A .I.R . operating
(3) Set low idle, using idle speed screw or/solenoid alien head screw adjustment (with solenoid de-energized), at 500 R P M (M-4)
(4) C A U T IO N : If the C.E.C. Valve (solenoid) on the carburetor is used to set engine idle or is adjusted out of limits specified
in this Service Manual, decrease in engine braking may result.
(5) Set Low Idle, using Idle speed screw/or solenoid Allen-head screw adjustment, at 400 R PM (with solenoid de-energized).
OVERHAUL MANUAL