Ignition System - DURA-Spark III: Overhaul: Rotor: Installation

Fig 1: Rotor & Adapter for Dura-Spark III Distributor Showing Adapter-to-Distributor Shaft Alignment

1. Coat rotor lower electrode blade only (not upper blades) using silicone grease. Coat all 4 distributor cap center blade arms to a 1/32" thickness.
2. To check rotor alignment, set No. 1 piston on compression stroke. Rotate crankshaft until rotor alignment tool (T79P-12200-A) can be inserted into the alignment slots in rotor and center of shaft. See Fig 1.
3. Read timing mark on damper that is aligned with pointer. If timing mark is within 4° of TDC, do not reset rotor alignment.
4. If alignment is not within 4° of TDC when installing rotor, remove alignment tool, position crankshaft at TDC and loosen 2 sleeve assembly adjustment screws.
5. Rotate sleeve until alignment tool fits into alignment slots. Tighten adjustment screws and remove alignment tool. Align rotor with large key way slot in distributor sleeve. Press rotor down into place.