Buick LeSabre 1965 Service Manual page 607

ELECTRICAL SYSTEMS
IGNITION TIMING 1 0 - 3 7
FLYWHEEL DEGREES
TIMING
TOTAL ADVANCE
AUTOMATIC
ADVANCE
AUTO. TRANS.—
M
H i
DISTRIBUTOR SPARK ADVANCE
300 CU.IN ENGINE
• i
7
/
m i
(PART THROTTLE
VACUUM ADVANCE PL I
CENTRIFUGAL PRODUC
LIM TS
/
J
M |
1A
\i
I
A
1
/
V /
hi
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ivy
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y
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y
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s
T I O N
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V
O 5 G o /
S Y N C
n IOOO i5..(.
T
R
A N
S |
J !
10 2 0 3 0 < 3
s
i •
0 5
APPROXIMA
ENGINF RP
D 6
TE M I L E S P
s
• ^
s
>
V
s
CEN
CUR\
3 0 0 L 35(;O
vi. 1
1
0 7 0 f
ER HOUR
FU
TR
E
*<•
LL THROTTLE
FUGAL ADVA
PRODUCTION L
4 0 0 0
0 9
M C E
MITS
4500
5000
0
C2B-P.-D.-V3P-S
Figure 10-37—Distributor Spark Advance Chart-300 Engine
FLYWHEEL DEGREES
TIMING
TOTAL ADVANCE
AUTOMATIC 1
ADVANCE
32.5
3 0
i.-C-=U\S-
DISTRIBUTOR SPARK ADVANCE
401 * 425 CHIN. ENGINE
(40ia425-l-4BBL.CARB= ALL TRANSMISSIONS)
(425-2-4BBL.CARB. = SYNCHROMESH TRANS.)
j
-r-k
-
-A-
-
(PART THROTTLE
VACUUM ADVANCE PLUS CENTRIFUGAL
PRODUCTION LIMITS
_ J _
I
L..
/
1 0
10 2 C
f
/
00
3
— ,
s,
a ?
-
I
r
1500
0
s
-
i
\
2000
«0 5
APPROXI
-
1
-* **
H i-
- i 1-
,
T
l .
• i
• i
2500 3000
ENGINE RPM.
) 60 70
MATE M L E S PER HOUR
s
• I
s
1 I
S
CURV
E P
s
A.
THROTTLE)
IFUGAL ADVANCE
^ODUCTION LIMITS
80 9
• i -
1
I
i
\
• |
—
i
—f—
—
a 500 5000
0
100
Figure 10-38—Distributor Spark Advance Chart-401 and 425 Engines (Except Dual 4-Bbl. with Auto. Trans.)