New Tyres Should Be Run In T THERE has been a
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good deal of clic! Cussion recently on the subject of whether new tyres should be run-in. and Dunlop has now stated that they should. most certainly, be ran gently for some distance before they are ready for the strain of maximum performance. The
problem has recently come to notice with the opening of the motorways—a highspeed run with completely new tyres can lead to premature failures.
With respect to commercial vehicle. the running-in speeds, and corresponding distances, recommended by Dunlop al-c: not more than 30 m.p.h. for the first 50 miles, the speed then gradually being increased until, after 100 miles, the tyres are ready for their full rated performance.
Post-curing Glass-fibre Bodies ANEW process developed by the Reliant Motor Co. Ltd.. Tamworth. Staffs, in conjunction with the West Midlands Gas Board discloses any production faults in the glass-fibre plastics bodies of the company's three-wheeled vans and private cars in less than 15 minutes, whereas traditional methods of inspection may fail to reveal faults liii can materialize after months or even years of service., -Bodies are treated in :1 post-curing department in temperatures up to 200°F. which reveals the most minute flaws in the mouldings, and any flaws are rectified immediately the body has been removed from the oven. The process also improves paint adhesion and prevents crazing of the cellulose finish.
Claimed to be the largest manuiJcturers of glass-fibre bodies in the country. the company produces a total of about 230 bodies a week. The hand-lay-up method of Moulding is employed to ensure uniform thickness of material. which offers a valuable reduction in weight, Moving to a new factory, costing f50.000. has allowed polyester resin. gelcoat and chopped strand glass-libre mat to be stored in bulk and this has materially facilitated production,