How start-stop systems can damage engine and surrounding components

[Mike Ruff, GW editor]

Start-stop technology is increasingly being used to tackle emissions and to promote more environmentally friendly vehicles but it can also have a detrimental effect on inferior engine and vibration control components, Corteco has warned.

By 2022, it is expected that start-stop systems will be fitted as standard on more than 82 per cent of vehicles sold in Western Europe.

Corteco has said that the process increases the strain on components with greater vibrations transmitted throughout the auxiliary drive via the crankshaft pulley and engine mount.

Typically on average an ordinary pulley and engine mount will have to withstand up to 50,000 to 70,000 starts over the lifetime of the vehicle. However, under the start-stop system a pulley and engine mount will have to endure 500,000 to 700,000 starts increasing the vibrations transmitted by ten times.

[See the full post at: How start-stop systems can damage engine and surrounding components]

[Dougal]

So we can expect cambelt replacement intervals to be reduced ?

[Phil]

This is blindingly obvious to any engineer. Manufacturers do not care about, in fact probably are happy about shortened life of mechanical components due to “Stop-Start” systems. Failures are unlikely during warranty, after warranty will promote early replacement of the vehicle. Kerching!

[Author]

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