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1965-75 Tune-up Specifications

 
Year Engine Car Model Spark Plug Type
(AC)
- Gap
Point Gap Dwell Angle Firing Order

Ignition Timing (BTDC or Mark)

Hot Idle
Std. Tran Auto Tran
2
1965 V6-225 44S -.035 .016
5
30 165432 550
4
550D
4
V8-300
10
-.035
.016
5
30 18436572 2.5° 550
4
550D
4
V8-401,425 44S -.035 .016
5
30 12784563 2.5°
6
500
4
500D
4
1966 V6-225 44S -.035 .016
5
30 165432 550
4
550D
4
V8-300,340
2 Bar. Carb
45S -.035 .016
5
30 18436572 2.5° 550
4
550D
4
V8-340
4 Bar. Carb
44S -.035 .016
5
30 18436572 2.5° 550
4
550D
4
V8-401,425 44S -.035 .016
5
30 12784563 2.5°
6
500
4
500D
4
1967 6-225
Except CA.
44S -.035 .016
5
30 165432 550
4
550D
4
6-225
CA 7
44S -.035 .016
5
30 165432 650
4
600D
4
V8-300
Except CA
10
-.035
.016
5
30 18436572 2.5° 550
4
550D
4
V8-300
CA 7
10
-.035
.016
5
30 18436572 2.5° 650
4
600D
4
8-340
Except CA
10
-.035
.016
5
30 18436572 2.5° 550
4
550D
4
8-340
CA 7
10
-.035
.016
5
30 18436572 2.5° 650
4
600D
4
8-400
Except CA
44TS-.035 .016
5
30 18436572 2.5° 500
4
500D
4
8-400
CA 7
44TS-.035 .016
5
30 18436572 2.5° 600
4
550D
4
8-430
Except CA
44TS-.035 .016
5
30 18436572 2.5° 550
4
550D
4
8-430
CA 7
44TS-.035 .016
5
30 18436572 2.5° 600
4
550D
4
1968 6-250
8 Std. tran
46N -.030 .019 32 153624 TDC
Damper
700
4
N/A
6-250
8 Auto tran
46N -.030 .019 32 153624
Damper
N/A
600D
4
V8-350 45TS-.030 .016 30 18436572 TDC 700
4
550D
4
V8-400 44TS-.030 .016 30 18436572 TDC 700
4
600D
4
V8-430 44TS-.030 .016 30 18436572 TDC
N/A
550D
4
1969 6-250
8 Std. tran
R46N-.035 .019 32 153624 TDC
Damper
700
N/A
6-250
8 Auto tran
R46N-.035 .019 32 153624
Damper
N/A
500D
4
V8-350 R45TS-.030 .016 30 18436572 TDC
9
700 600D
V8-400
Std. tran
R44TS-.030 .016 30 18436572 2.5°
ATDC
700
N/A
V8-400
Auto tran
R44TS-.030 .016 30 18436572 TDC
N/A
600D
V8-400
G.S. Stage I
R44TS-.030 .016 30 18436572 10° 700 600D
V8-430 R44TS-.030 .016 30 18436572 TDC
N/A
550D
1970 6-250
8
R46N-.035 .019 32 153624
12
700 550D
V8-350 R45TS-.030 .016 30 18436572 700 600D
V8-455 R44TS-.030 .016 30 18436572 700 600D
1971 6-250
8
R46TS-.035 .019 32 153624 550 500D
V8-350
Std. tran
R45TS-.030 .016 30 18436572 800
N/A
V8-350
Auto tran
R45TS-.030 .016 30 18436572
11
N/A
600D
V8-455
Std. tran
R44TS-.030 .016 30 18436572 700
N/A
V8-455
Auto tran
R44TS-.030 .016 30 18436572
N/A
600D
V8-455
Stage I
R44TS-.030 .016 30 18436572 10° 700 600D
1972 V8-350 R45TS-.040 .016 30 18436572 800 650D
V8-455 R45TS-.040 .016 30 18436572 900 650D
V8-455
Stage I
R45TS-.040 .016 30 18436572
13
900 650D
1973 6-250
8
R46T-.035 .019 31-34 153624 700 600D
V8-350 R45TS-.040 .016 30 18436572 800 650D
V8-455 R45TS-.040 .016 30 18436572 900 650D
V8-455
Stage I
R45TS-.040 .016 30 18436572 10° 900 650D
1974 6-250
8
R46T-.035 .019 31-34 153624
3
950 600D
V8-350 R45TS-.040 .016 29-31 18436572
N/A
650D
V8-455 R45TS-.040 .016 29-31 18436572
14
N/A
650D
1975 6-250
8
R46TX-.060 - - - 10° 800 600D
V6-231 R44SX-.060 - - 165432 12° 800 700D
V8-260
15
R46SX-.080 - - - 16°
N/A
600D
V8-350 R45TSX-.060 - - - 12°
N/A
600D
V8-400
2b Carb 16
R46TSX-.060 - - - 16°
N/A
650D
V8-400
4b Carb 16
R45TSX-.060 - - - 16°
N/A
650D
V8-455 R45TSX-.060 - - - 12°
N/A
600D

1 - BTDC - Before top dead center

2 - D- Drive N- neutral

3 - Manual trans.- 8° BTDC Auto trans.- 6° BTDC

4 - A/C turned to full on position

5 - Turn adjusting screw in Clockwise until engine misfires, then turn

6 - 12° BTDC for V8-425 with two carbs and auto trans.

7- Air Injector reactor (A.I.R)

8- SEE Chevrolet for service procedure

9- 5° BTDC for Lesabre

10- 2 Barrel 45S, 4 Barrel 44S

11- 4 barrel carbs and all Lesabres 4°, all other 10°

12- Std.tran TDC Auto tran4°

13- Manual tran 8° Auto 10 °

14-Exc. Intermediate model Stage I eng 4° BTDC, Intermediate model Stage I 10 °

15-SEE Oldsmobile for service procedure

16- SEE Pontiac for service procedure