Buick LeSabre 1965 Service Manual page 287

SUPER TURBINE " 3 0 0 '
SERVICE PROCEDURES 5 - 7 3
5 - 3 3 OIL PRESSURE CHECKS
SUPER TURBINE "300"
TRANSMISSION PRESSURE CHECKS
MAXIMUM
modulator
A
L
T
I
T
U
D
E
Sea Level
2,000 Ft.
5,000 Ft.
10,000 Ft.
MAIN LINE PRESSURE CHECKS are tc
line disconnected
Barometric
Pressure
(in Hg.) at
Standard
Conditions*
29.92
27.82
24.89
20.58
> be made
and plugged. The engine speed set
25 V-6
Vacuum Modulator
Part No. 1365186
or 1365187
D and L R
±4 PSI ±6 PSI
137 213
130 202
120 186
105 163
25
Vacuum
Part No
in the garage? bay with the vacuum
at 1000 RPM.
V-6
Modulator
. 1367031
or 1367032
D and L
±4 PSI
141
134
124
109
R
±6 PSI
219
207
192
168
35 V-8
Vacuum Modulator
Part No. 8623364
or 8623365
D and L R
±4 PSI ±6 PSI
149 230
142 219
131 203
117 183
MINIMUM LINE PRESSURE CHECKS
line connected. Engine and/or car
are to be
made while
speed as shown in note
MINIMUM LINE PRESSURE CHECKS
USED. (Pressures not affected by
Park, Neutral, and Drive
Low
Reverse
60 ±
90 ±
93 ±
FOR ALL
Altitude or
2
4
4
PSI
PSI
PSI
road testing car.
below.**
MODELS REGARDLESS OF
Barometric Pressure)
The vacuum modulator
VACUUM MODULATOR
*Line pressures vary 3.5 PSI for each 1 in. hg. change in Barometric Pressure.
••Minimum line pressure checks to be made as follows:
1. Drive 20-40 mph coast with foot off throttle. Park and Neutral can be checked at 1000 RPM.
2. Low 20-40 mph coast with foot off throttle.
3. Reverse-coast with foot off throttle.
NOTE: PRESSURE TAP IS LOCATED BESIDE THE LOW SERVO COVER. See Figure 5-375.