Actron KAL2504 - Manual

Instructions for
Compression Tester
Test Procedure
1. Start Engine and warm to normal
operating temperature.
2. Turn engine off
3. Remove and number spark plug wires
4. Loosen spark plugs one turn
5. Clean loose dirt and rust from and
around spark plug wells
6. Remove spark plugs and place on
clean flat surface in order removed
7. Remove air filter
8. Set carburetor throttle plate to wide
open using string.
CAUTION
Be careful not to damage linkage
or throttle body components.
CAUTION
Make sure to return
carburetor throttle plates to closed
position before starting engine.
9. Remove high tension lad from center
of distributor and connect to ground.
NOTE: To disable electronic ignition
systems, disconnect electronic ignition
module or remove primary battery
terminal from ignition coil.
NOTE: On GM HEI V-6 and V-8
disconnect primary lead from distrutor
cap.
Held Open Throttle
Plates
GM HEI Ignition
Disabling Procedure
Ignition Disabling
Procedure
Carburetor
String
High Tension Lead
Jumper Wire
Primary Wire