October 2019

do their work,” explained Sérgio. “They are increasingly making best use of the efficiencies of digital tools, and we are meeting them with a tool that ensures they always have precise information for the job in hand, including torque tightening for components, which can make a great difference to performance. Overall, this launch means that mechanics can focus on their work efficiently and productively, without guesswork or worrying about losing scraps of paper.” Transmission products are available exclusively through STEIGENTECH’s network of more than 30 international distributors.” Options It’s always worthwhile considering what the VMs are using when considering a repair or servicing option. Steve Carolan, National Sales Manager at Dayco, commented: “The Dayco High Tenacity (HT) or ‘white’ belt, which, with its PTFE film on its inner teeth and fibreglass core, has become the mainstay timing belt for many engine variants used for multiple applications by numerous VMs. “Just as the constant evolution of engine design led to the development of new materials that are able to guarantee higher performance levels like those used in the manufacture of Dayco HT belts,” said Steve, “further advances have raised the bar still higher. “Dayco HK belts, originally designed for the requirements of specific Peugeot/Citroën applications, encompass the highest level of technological development and feature a tooth lining fabric and weave that incorporates aramid fibres. This combination achieves extremely high wear performance and greater adaptability to tooth geometry, which makes them particularly effective for high-stress transmission systems. “Other notable solutions include the belt-in-oil (BIO), a technology that Dayco originally developed to drive the high-pressure fuel injection pump for Ford’s 1.8-litre Lynx engine, but which has subsequently been used in several other applications where space is of particular concern.” BSG Another development is the Dayco belt-start generator (BSG) 48 V, a Stop/Start hybrid engine system designed to enable torque to be transmitted in different directions. Steve commented: “The BSG is an unorthodox alternator system that, as well as charging the battery when needed, provides engine starting and braking energy regeneration through the alternator, via the auxiliary belt. “The Dayco Poly-V belt for this system, which has a white, high- strength fabric coating the rib side, is particularly durable and designed to operate in winter temperatures of minus 40ºC and then be subjected up to 90ºC within the engine department.” Dayco tips & tricks Commenting on fitment, Steve said: “There are numerous tips that Dayco recommends technicians bear in mind to promote best practice when replacing primary and auxiliary drive components, among others.” Ensure engine is cool, ideally not run for at least four hours Working area air temperature should be around 20ºC, the same as the parts to be installed Disconnect battery If needed remove spark plugs Only rotate engine in normal operating direction Ensuring that replacement belts are treated with respect and not handled with greasy hands, crimped or otherwise damaged before installation When fitting a replacement water pump, sealing compound should only be used when the gasket is not included, otherwise just wet the mating surfaces and the supplied gasket with coolant Specific torque sequences and values must be followed Steve observed: “As Dayco kits contain all the components that VMs state must be changed in accordance with the specific service procedure, technicians must fit all the components supplied in the relevant Dayco timing or auxiliary belt kit, during the replacement process. In short, the basic principle for technicians is to simply follow the VM’s instructions, without adding ‘just in case’ additions like lots of sealer or Loctite adhesive etc. He added: “In other words, don’t improvise and fit it the way they think is best, just follow the directive, which is best.” Kits Commenting on INA’s aftermarket timing drive systems, Tim Adams INA/FAG Product Specialist, said: “INA are ‘The Engine Experts’, and the brand is home for a complete range of aftermarket products that covers all four key engine systems. The timing drive – including belt and chain systems – front end auxiliary drive (FEAD), valve train and cooling: each of these systems is provided for with a range of individual INA components and complete KITs, which include everything required for a professional repair in just one box.” Tim continued: “Schaeffler designs timing drive systems for original fitment by virtually every VM, with the same OE components also available to the aftermarket as INA complete KIT and KIT+ repair solutions, as well as individual chain and belt drive system components.” Recommended Commenting on changing expectations and the impact on servicing intervals, Tim said: “Demands placed on each individual component are growing, as VMs expect modern systems to handle larger loads and increased engine vibration levels while delivering a long and reliable service life. “To avoid engine damage, and the consequential costs, all components on the timing belt route should be replaced at the specific manufacturer’s recommended service interval and according to its instructions and specifications. “INA has put together an advanced range of timing belt KITs to ensure a simple, efficient and professional replacement. In addition to the belt, 44 AFTERMARKET OCTOBER 2019 TIMING SYSTEMS Below: Michelin fitting instructions www.aftermarketonline.net