PRODUCT INFORMATION
INDEX
DATE
Dep. 2
IO-G-M-33-009e A
April 2013
CHECKING THE IGNITION TIMING
3/3
8. Disconnect everything when the engine has stopped. Once the engine has stopped the coils are not
active. In addition, the coils discharge very quickly so there is no risk of them being live as long as they
are well earthed.
2.2. Engine running
1. Only for measuring the timing with V-Engines in cylinders 9 to 16 (16V) or 7 to 12 (12V). These cylinders
are on the same side as the measurement port. This means that you do not have to pass the strobe gun
cables from one side to another. Connect the gun earth to the ignition rail, engine block or coil earth.
2. Stand on an insulated stool, wearing a high voltage glove and helmet with electrical protection screen,
connect the clamp to the secondary of the cylinder where the timing is to be measured.
Image 5 – Connecting the clamp wearing high voltage gloves
3. Connect the earth to the battery
4. Connect to the + terminal of the battery. It is normal to connect and disconnect so as not to drain the
batteries.
To disconnect everything:
1. Disconnect from the + terminal of the battery.
2. Using the insulated stool , wearing a high voltage glove and helmet with electrical protection, disconnect
the clamp from the secondary of the cylinder.
3. Disconnect the timing gun earth.
4. Disconnect the battery earth.
5.2.39
O&M_2.002211.810_A_10_2016