LEMON Manuals
: Even more car manuals for everyone: 1960-2025
Home
>>
Porsche
>>
1991
>>
911 Turbo
>>
Repair and Diagnosis
>>
Engine Performance
>>
Engine Controls - Specifications
>>
Ignition System
>>
Firing Order & Timing Marks
April 5, 2026:
LEMON Manuals is launched!
Read the announcement.
Firing Order & Timing Marks
NOTE:
For location of ignition timing mark, see
ADJUSTMENTS
article in the ENGINE PERFORMANCE Section
Fig 1: Firing Order & Distributor Rotation (Double Ignition System)