Garage Wall Sheet (Printable Quick Specs)
A single-page quick-reference sheet designed to print and hang on your garage wall. Use the Print Spec Sheet button above to print cleanly without menus or sidebars.
Tune-Up & Ignition Basics
| Model | Firing Order | Valve Clearance (Cold) | Spark Plug Gap | Point Gap |
| Spitfire Mk1 / Mk2 (1147 cc) | 1-3-4-2 | 0.010″ (0.25 mm) | 0.025″ | 0.014″ – 0.016″ |
| Spitfire Mk3 / Mk IV (1296 cc) | 1-3-4-2 | 0.010″ (0.25 mm) | 0.025″ | 0.014″ – 0.016″ |
| Spitfire 1500 (1493 cc) | 1-3-4-2 | 0.010″ (0.25 mm) | 0.025″ | 0.014″ – 0.016″ (or electronic) |
| GT6 Mk1 / Mk2 / Mk3 (1998 cc) | 1-5-3-6-2-4 | 0.010″ (0.25 mm) | 0.025″ | 0.014″ – 0.016″ |
Essential Torque Specs (Always Verify Model Year)
| Fastener | Spitfire (4-Cyl) | GT6 (6-Cyl) |
| Cylinder Head Nuts (3/8″ UNF) | 42 – 46 lb-ft | 42 – 46 lb-ft (7/16″ late: 65 lb-ft) |
| Rocker Pedestal Nuts | 24 – 26 lb-ft | 24 – 26 lb-ft |
| Spark Plugs | 18 – 22 lb-ft | 18 – 22 lb-ft |
| Road Wheel Nuts (Steel) | 38 – 42 lb-ft | 45 – 50 lb-ft |
| Sump Drain Plug | 20 – 25 lb-ft | 20 – 25 lb-ft |
For complete fastener lists, fluid capacities, and model-specific timing figures, see Torque Specs, Lubrication Specifications, and Tuning Data.
