The Triumph TR4, produced from 1961 to 1965, is a classic British sports car celebrated for its robust chassis, potent inline 6-cylinder engine, enjoyable driving dynamics, and distinctive styling. Designed by Giovanni Michelotti, this model offered a significant step forward from its predecessors, featuring a 2138 cc engine producing approximately 105.5 bhp and a 4-speed manual transmission, with an optional overdrive. The TR4 was engineered to provide spirited performance and a classic open-top motoring experience, positioning it as a key competitor in the sports car market of its era.

This comprehensive workshop service repair manual serves as an essential resource for the Triumph TR4, covering a wide array of maintenance, repair, and diagnostic procedures. It details engine overhaul and tuning, transmission and clutch maintenance, chassis system repairs including suspension and brakes, and electrical system troubleshooting with detailed wiring diagrams. The manual also addresses bodywork and interior trim, offering step-by-step instructions for rebuilding components and performing routine servicing. Its purpose is to empower owners and technicians with the knowledge required to maintain and preserve the TR4's originality and performance.