Tune-up Specifications

* See notes at the end of the table

Car Model

Engine type
(first six digits of
engine serial number)

Champion Spark plug

plug gap (in)

Point
gap (in)

Point Dwell
(º)

Valve Clearance
(in)

Valve
timming
(º)

Ignition timming (º)
(**)

Idle speed

Cranking Compr (psi)

int.

exh.

Intake opens
(*)

Man. Trans.
(N)

Auto Trans.
(N)

Auto Trans.
(D)

Norm. Range

Min.
190 C
121.924

L87Y
0.020
0.016 /0.020
37/41
0.003
0.006
10 B
48
800-850
850-950
600 *9
139-154
117
200
121.940
N6Y
0.023
0.016 /0.020
37/41
0.003
0.007
11 B
43
800-850
850-950
600 *9
147-162
125
230
180.945
/180.949 *1
N6Y
0.023
0.016 /0.020
37/41
0.003
0.007
11 B
37
750-800
800-850
550 *9
147-162
125
220 b
180.940
N6Y
0.023
0.012 /0.016
37/41
0.003
0.006
10 B
35
750-800
800-850
550 *9
147-162
125
220 Sb
180.941
N6Y
0.023
0.012 /0.016
37/41
0.003
0.006
10 B
35
750-800
800-850
550 *9
147-162
125
230 S
180947
N6Y
0.023
0.012 /0.016
37/41
0.003
0.007
11 B
37
750-800
800-850
550 *9
147-162
125
250 S
108.920
N6Y
0.023
0.012 /0.016
37/41
0.003
0.007
11 B
37
750-800
800-850
550 *9
147-162
125
220 SEb
127.982
N6Y
0.023
0.012 /0.016
37/41
0.003
0.006
10 B
28
750-800
750-800
600 *9
147-162
125
250 SE
129.980
N6Y
0.020
0.012 /0.016
37/41
0.003
0.007
11 B
30
750-800
750-800
750 *9
162-177
132
250 SE/C *2
129.980
N6Y
0.020
0.012 /0.016
37/41
0.003
0.007
11 B
30
750-800
750-800
750 *9
162-177
132
230 SL
127.981
N6Y
0.020
0.012 /0.016
37/41
0.003
0.007
10 B
30
750-800
750-800
600 *9
162-177
132
250 SL
129.982
N6Y
0.020
0.012 /0.016
37/41
0.003
0.007
11 B
30
750-800
750-800
750 *9
162-177
132
220 SEb/C *2
129-984
N6Y
0.023
0.012 /0.016
37/41
0.003
0.006
10 B
28
750-800
750-800
600 *9
147-162
125
300 SE
189.984
N6Y
0.020
0.014 -0.018
47/51
0.004
0.010
7 B
28
650-700
680-720
600 *9
147-162
125
300 SE *4
189.986 *5
N6Y
0.020
0.014 -0.018
47/51
0.004
0.008
18 B
28
650-700
680-720
600 *9
147-162
125
300 SE *10
189.986 *3
N6Y
0.020
0.014 -0.018
47/51
0.004
0.008
18 B
28
650-700
680-720
600 *9
147-162
125
300 SE *6,7,2
189.987 *5
N6Y
0.020
0.014 -0.018
47/51
0.004
0.008
18 B
28
650-700
680-720
600 *9
147-162
125
300 SEb
189.989
N6Y
0.020
0.014 -0.018
47/51
0.004
0.010
18 B
28
650-700
680-720
600 *9
147-162
125
300 SEL
189.988
N6Y
0.020
0.014 -0.018
47/51
0.004
0.010
18 B
28
650-700
680-720
600 *9
147-162
125
220 /8
115.920
N6Y
0.023
0.016 /0.020
48/52
0.003
0.008
11 B
43
850-950
850-950
650-700
147-162
125
230 /8
180.954
N6Y
0.023
0.012 /0.016
37/41
0.003
0.007
11 B
37
800-900
800-900
650-700
147-162
125
250 /8
114.920
N6Y
0.023
0.012 /0.016
37/41
0.003
0.007
11 B
37
800-900
800-900
650-700
147-162
125
280 S/8
130.920
N6Y
0.023
.012/.016
37/41
0.003
0.007
11 B
37
800-900
800-900
650-700
147/162
125
280 SE/8 *8
130.980
N6Y
0.020
0.012 /0.016
37/41
0.003
0.007
11 B
30
700-800
700
700
162-177
132
280 SL/8
130.983
N6Y
0.020
0.012 /0.016
37/41
0.003
0.007
11 B
30
700-800
700
700
162-177
132
300 SEL/8 (2.8)
130.981
N6Y
0.020
0.012 /0.016
37/41
0.003
0.007
11 B
30
700-800
700
700
162-177
132
300 SEL/8 (6.3)
100.981
UN12Y
0.020
0.012 /0.016
34/38
0.004
0.010
4 B- 2 A
26 *11
550
550
600
147-162
125


Notes

*1
 INAT carburettors
 *9

In gear, with power steering in lock position
*2
 Coupe and Convertible
 *10
 Coupe to Aug. 1965 
*3
 First version
 *11
 At 3,000  RPM
*4
 Long wheelbase
 
 For normal driving
*5
 Second version
*
 Preload test value of 0.016''
*6
 Convt, to Aug. 1965
**
 At 4,500 RPM, vacum line disconnected and plugged. See distributor advance values Chart
*7
 From Aug. 1965; same engine as previous second version 300 SE conv.
A
After Top Dead Center
*8
 Sedan, Coupe, Convt and long wheelbase 280 SEL / 8
B
 Before Top Dead Center
note 1
 On Dual point distributors, check each set separatelly by inserting
insulator between each contact set in turn .
Dwell values given are total both sets
note 2
To counteract wearing of fiber contact block, adjust dwell to lower end of range (wider gap)