Technical Queries

Beware of used seatbelts


  1. Posted on June 23rd, 2017 by Rob Marshall
  2.   In my view, the MoT Test has got it right, when it comes to conducting a brief, visual inspection of seatbelt conditions. Webbings and buckles are checked closely for wear, as are the belt locking and retraction mechanisms and the mounting areas on the bodywork are verified as being free of corrosion, so that […]

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Be wary of the killer modifications


  1. Posted on May 19th, 2017 by Rob Marshall
  2. A recent inquest that concluded the accidental deaths of a young couple has highlighted the dangers of adapting (or deactivating) car anti-pollution systems, in a bid to either increase vehicle performance, or reduce repair costs. Last December, the bodies of Tom Putt (20) and Nikki Willis (23) were found inside a Ford Fiesta ST that […]

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Which is better? Timing belts or timing chains?


  1. Posted on January 11th, 2017 by Rob Marshall
  2. Popularised by overhead camshafts appearing on road car engines from the 1970s, the once durable last-for-life timing chain was replaced by an externally-mounted replaceable timing belt, which also synchronised the engine crankshaft movement with that of the camshaft, to ensure that the valves and pistons did not make sudden, unexpected and violent content. If you […]

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Contact us with any technical queries


  1. Posted on August 11th, 2014 by GEM Motoring Assist
  2. At GEM we take pride in providing our members with the best technical support around. Continue to our Technical Query form if you have any motoring maintenance questions.

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