SI15.10-N-0001C | Service Information on spark plugs | 11.4.05 |
ENGINE 902.9, 906.9 with CODE (MS8) Natural gas engine
Modification notes
When using the new IRIDIUM spark plugs
A 004 159 41 03 in each case the electrode gap should be checked before installation and adjusted if necessary.
Required setting: 0.35 mm, permissible tolerance +/- 0.05 mm.
It is absolutely essential to maintain the adjustment value of 0.35 mm otherwise uneven engine idle may occur.