Parts, Tools & Tips New products, fitting tips & technical advice to ease fault-finding and installation
RING SET TO IMPROVE RUNOUT MEASUREMENTS
Textar has launched a conical adapter ring set to improve runout measurements as even small deviations from VM tolerances, such as 0.05mm, can lead to vibrations that cause noise and/or brake judder.
ENGINE DECONTAMINATION Sealey introduces a range of engine carbon and DPF cleaners for garages considering a new revenue stream this autumn, to reduce emissions, improve performance, increase vehicle life and even eliminate engine fault codes. The HHO Engine Carbon Cleaner, Model No. CC230V, uses Oxy hydrogen, created by the electrolysis of water, which is fed into the air inlet of a running vehicle, increasing the temperature within the combustion chamber and removing excess carbon build-up. Sealey says that immediate results are noticeable and the machine can be left in a well-ventilated area to perform the engine clean without supervision. Its customers are increasing revenue of up to £99+VAT per job, which can take anywhere up to an hour, depending on the severity and engine size. No additives are needed and the running costs are minimal.
EARN REWARDS FROM FAILED EMISSIONS TESTS THIS AUTUMN
As demand for MOT’s is set to double this autumn, NTK, the vehicle electronics arm of NGK Spark Plugs, will increase the level of reward points for Lambda Sensors throughout September and October in its garage reward programme, BoxClever from 100 to 1,000 points per sensor. Mark Hallam, NGK Marketing Manager, said: “It is estimated that over 140,000 vehicles will fail the emissions element of the MOT test in October alone. We anticipate an increase in demand for MOT’s and a subsequent increase in demand for our Lambda Sensors this autumn.” www.ngkntk.com
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The experts at braking manufacturer TMD Friction, say that although most garages are aware of this and routinely measure runout, the proportion of motorists who complain about juddering brakes is relatively high and measurement errors are often the cause. Even the most precise runout gauge cannot provide accurate values if the disc behaves differently during measurement and this is because of how the brake disc fits on the hub. The hub is only fixed in place by the mounted wheel. However, the wheel must be dismantled for the runout measurement. If the wheel bolts are screwed in without the rim, they are almost always too long to provide a firm hold. Garages often use nuts as spacers but this has two disadvantages: Firstly, most wheel bolts have a conical collar so a uniform holding force cannot be applied even when tightened crosswise and, secondly, the contact surface of the disc bell can be damaged when using steel nuts. This can provide an unrealistic measurement result with low tolerances. Textar’s conical adapter rings serve as both spacers and holders for the wheel bolt collar. Thomas Beier, Product Manager at TMD Friction, said: “During our test series with our adapter rings, we found that when the brake disc is bolted crosswise and a torque of 80 Nm is applied, meaningful measurement values are obtained. During measurement, the brake disc then behaves as if it were being held by the wheel.” The stainless steel Textar adapter rings (Art. No. TEX1038) are offered as a set of 10 rings. A complete axle can be measured using these rings and a precise runout gauge (Art. No. TEX1028) is also available. A detailed description can be found online at www.brakebook.com. Scott Irwin, head of technical training at Textar, discusses how important it is to acquire accurate runout measurements here https://autotechnician.co.uk/ measuring-runout-accurately/.
