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

ModelFiring OrderValve Clearance (Cold)Spark Plug GapPoint Gap
Spitfire Mk1 / Mk2 (1147 cc)1-3-4-20.010″ (0.25 mm)0.025″0.014″ – 0.016″
Spitfire Mk3 / Mk IV (1296 cc)1-3-4-20.010″ (0.25 mm)0.025″0.014″ – 0.016″
Spitfire 1500 (1493 cc)1-3-4-20.010″ (0.25 mm)0.025″0.014″ – 0.016″ (or electronic)
GT6 Mk1 / Mk2 / Mk3 (1998 cc)1-5-3-6-2-40.010″ (0.25 mm)0.025″0.014″ – 0.016″

Essential Torque Specs (Always Verify Model Year)

FastenerSpitfire (4-Cyl)GT6 (6-Cyl)
Cylinder Head Nuts (3/8″ UNF)42 – 46 lb-ft42 – 46 lb-ft (7/16″ late: 65 lb-ft)
Rocker Pedestal Nuts24 – 26 lb-ft24 – 26 lb-ft
Spark Plugs18 – 22 lb-ft18 – 22 lb-ft
Road Wheel Nuts (Steel)38 – 42 lb-ft45 – 50 lb-ft
Sump Drain Plug20 – 25 lb-ft20 – 25 lb-ft

For complete fastener lists, fluid capacities, and model-specific timing figures, see Torque Specs, Lubrication Specifications, and Tuning Data.