Actron KAL2512 - Manual

Instructions for Vacuum
Gauge/Pressure Tester
Cranking Vacuum Test For
Engine Condition
1. Start Engine and warm to normal
operating temperature.
2. Turn engine off and disable ignition.
3. Remove air filter and back out idle
speed screw counting turns until
throttle valve is closed.
NOTE: If carburetor is equipped with an idle
air bleed screw, turn clockwise, counting
number of turns until screw bottoms lightly.
NOTE: If vehicle is equipped with an
idle stop solenoid, disconnect electrical
wires at base of solenoid under rubber
boot or at connector.
NOTE: If vehicle is equipped with a PCV
(Positive Crankcase Ventilation) system,
remove valve at engine rocker arm cover
and plug valve on bottom with tape.
4. Using hose supplied, connect Vacuum
Gauge to fitting on carburetor below
throttle plate or a fitting on intake
manifold.
5. Crank engine and note Vacuum
Gauge reading.
6. Return adjustment screws to original
positions.
Test Results
3 possible gauge readings are:
A.Steady vacuum reading of the following
indicates correct engine vacuum:
• 4 inches or more on emission
controlled engines.
• 10 inches or more on non-emission
controlled engines
0
Engine
Vacuum
5
10
15
20
25
30
10
9
8
7
6
5
4
3
2
1
0
1
2
3
4
5
6
7
Fuel
Pump psi
Idle
Speed
Screw
Idle
Mixture
Screw
Electrical
Connector
Idle Stop
Solenoid
Air Cleaner
Manifold
Vacuum
Closed
Breather
Cap
Rocker Arm
Valve Cover
PCV Valve
Steady Vacuum of 4
inches or more