Ignition Timing
Make adjustment with engine at normal operating temperature, choke open, air conditioner OFF and vacuum fittings disconnected and plugged. Disconnect carburetor hose from vapor canister, engage parking brake, and block drive wheels. Set timing to specified degrees at the given RPM.
| Engine & Code | @RPM | Set Timing |
|---|---|---|
| 350" QI, QA, QJ, QB, QO, TD, TC | 1100 | 10° BTDC |
| 350" QN, QP | 1100 | 12° BTDC |
| 455" TY, TX, TQ, TP, UE, UC, UD, UN, UO | 1100 | 8° BTDC |
| 455" TU, TN, TW, TV, TA, US, UT | 1100 | 10° BTDC |
| 455" TS | 1100 | 12° BTDC |
| 455" TB | 850 | 12° BTDC |
| 455" TT, TL | 850 | 10° BTDC |