May 2020

MAY 2020 AFTERMARKET 45 www.aftermarketonline.net leaks are often not identified after replacement.” There are consequences to an incorrect filter fitment said Karl: “The poor fitting of a cabin air filter, or failure to replace it at the recommended regularly scheduled intervals, leads to poor air quality inside the car. This can result in an accumulation of harmful gases, unpleasant odours and airborne particulate matter that trigger allergies, and throat discomfort or sneezing. This leads to fatigue and poor concentration after prolonged driving or even poor visibility due to condensation that builds up on the windscreen and side windows.” Performance In order to achieve required engine emission and fuel consumption goals, all systems must work in unison. “Central to this objective,” said Dayco UK’s National Sales Manager Steve Carolan, “is effective thermal management, which is why, with engineering partners such as Dayco, they have developed innovative solutions to ensure their engines not only reach their operating temperatures as quickly as possible, but are maintained at these optimal working levels. “Electric water pumps that can be activated instantaneously alongside imaginative design solutions for mechanical pumps, such as Dayco’s friction wheel, therefore play an important part. Over the last few years, VMs have also moved to integrate the water pump into the primary drive timing system, rather than it being driven by the auxiliary belt. “In contrast to the auxiliary belt, the timing belt has a scheduled replacement interval. This means technicians come into contact with the water pump more frequently, making it easier to assess its condition. As a consequence, more are found to be either in need of replacement, or are being changed as a ‘best practice’ precaution. “Helpfully, power transmission manufacturers such as Dayco, have proactively responded to this development by adding a water pump to their timing belt kits to provide workshops with a complete aftermarket replacement solution. “Designated by the KTBWP classification, each of Dayco’s 300 plus water pump kits includes the replacement pump alongside the belt, tensioner and idler combination, with 75 of these references containing the patented Dayco High Tenacity (HT) or ‘white’ belt. These sit alongside its thermostat range.” Scheduled When a car is in the workshop, Steve said technicians need to change the whole system at once: “As a timing belt replacement is a relatively expensive, although extremely important scheduled service requirement, there is complete logic behind changing both the water pump and timing belt at the same time, as it is a far more cost effective solution for motorists in the long run and also gives the them confidence that their vehicle has benefitted from a full and thorough system overhaul.” Steve concluded: “Therefore, for the peace-of-mind of the owner, as well as the most profitable result for the workshop, Dayco recommends they opt for a full timing drive system replacement, rather than change just the water pump or timing belt in isolation. As well as providing the replacement components that correctly reflect the developing technology of the vehicle parc, another benefit from the workshops perspective is the ability to be able to fit a wider range of thermal management products from a single trusted supplier.” Air conditioning compressor from MAHLE