Chrysler — Adjusting Ignition Timing (with Timing Light Tool C-4693)
Adjustments · ignition system
From a Chrysler operator's manual covering: IND. 52, IND. 53, IND. 54, IND. 56. Check it applies to your exact model before use.
Procedure
- Place chalk mark on vibration damper at register mark indicating desired timing point.
- Remove No. 1 spark plug wire from distributor and insert in female end of adaptor Tool C-3066.
- Insert male end of adaptor in No. 1 distributor tower.
- Connect blue wire of timing lamp to female end of adaptor; black to negative battery; red to positive battery.
- Start engine and run at idle speed until normal operating temperature is reached.
- Observe flash of timing light; it should occur when chalk mark is exactly opposite pointer.
- If not, loosen distributor clamp bolt and rotate distributor until specified timing is obtained; tighten clamp bolt.
- Accelerate engine and observe timing light; timing should indicate gradual spark advance.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Ind. 52: 4 degrees BTDC; Ind. 53: 6 degrees BTDC; Ind. 54: 5 degrees BTDC; Ind. 56: 6 degrees BTDC; Ind. 56A: 8 degrees BTDC
Source: Chrysler operator's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.