Full guide to dismantling and re-assembly of Triumph TR5, 5T, 6T, T100 and T110 Pre-Unit Construction Engine and Gearbox, Detailed Drawings and Tools required from the Triumph Handbook. Features, Engine, Flywheel and Crankshaft, Cylinder Block, Pistons, Cylinder Head, Gearbox, Gear Cluster, Kickstart Assembly, Gearbox Casing, Gearbox Internals, Primary Drive, Clutch, Drive Shock Absorber, Chains, Lubrication System, Oil Pump, Lubrication Chart.