B&M 70239 SHIFT IMPROVER KIT - Manual (Page 11)

OIL PRESSURE CHECK PROCEDURE
PRELIMINARY INSPECTION:
* CHECK AND ADJUST T.V. CABLE
* CHECK OUTSIDE MANUAL LINKAGE
* CHECK ENGINE TUNE
CHECK OIL PRESSURE:
* INSTALL 0-300 PSI PRESSURE GAGE
* CONNECT TACHOMETER TO ENGINE
MINIMUM T.V. LINE PRESSURE CHECK:
With the T.V. Cable properly adjusted and the brakes applied, take the Line Pressure readings in the Ranges and at
the engine RPM’s indicated in the chart.
FULL T.V. LINE PRESSURE CHECK:
Full T.V. Line Pressure readings are obtained by pulling the T.V. Cable to the full extent of it’s travel then take the Line
Pressure readings in the Ranges and at the engine RPM’s indicated in the chart.
CAUTION: Limit running time at FULL T.V. Pressure to two (2) minutes maximum to prevent over heating.
CAUTION: Brakes should be applied at all times.
TH700 (4L60) TRANSMISSION OIL PRESSURES
RANGE MODEL NORMAL OIL PRESSURE NORMAL OIL PRESSURE
AT MINIMUM T.V. AT FULL T.V.
kPa PSI kPa PSI
PARK, NEUTRAL, ALL MODELS SEE 517-586 75-85 1145-1400 166-203
OVERDRIVE, SEE NOTE BELOW
MANUAL 3RD
@1000 RPM
REVERSE ALL MODELS 862-955 100-140 1869-2296 180-340
SEE NOTE BELOW
@ 2000 RPM
MANUAL 2ND & ALL MODELS 1517-1689 160-295 1517-1689 160-295
MANUAL LOW SEE NOTE BELOW
@ 1000 RPM
NOTE: Oil Pressure at FULL T.V. Pressure depends on the calibration of T.V. Boost valve and Line Bias Valve
components originally installed at the factory. The Pressure reading you obtain should be within the range shown.
Normal (or Base) Line Pressure is determined by the Pressure Regulator Spring installed in the unit.
In Neutral, Drive, Drive 3 and Reverse Ranges, Line Pressure increases with increasing throttle opening by action of
the T.V. system. Line pressure rise is controlled mechanically by the T.V. Cable which is linked to the Throttle Lever
and Bracket assembly attached to the Valve Body.
In Drive2 & Drive1 Ranges, Line pressure is fixed at a constant value by the Reverse Boost valve and does not change
with throttle opening.
The Line Pressure tap is located on the left side of the transmission case above the outside Manual Lever.
Figure 14 Oil Pressure Check Procedure
ATTACH PRESSURE GAUGE
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