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Engine Timing

Timing Chain Replacement

There is a general misconception that a timing chain will last for the life of a vehicle.

 

However, chains, sprockets and other components will stretch or wear over time, especially if the vehicle is poorly maintained. When replacing one engine timing component, it is best practice to replace all associated parts.

The argument for replacing

A snapped or stretched timing chain can cause major damage to cylinder head components in modern ‘interference’ engines, when valves and pistons can smash into each other.

As well as inspecting the chain assembly for signs of wear, the owner or mechanic should listen for a change in engine note. If the engine sounds ‘rough’, it may be a sign that timing accuracy has deteriorated. Adhering to regular service intervals and inspecting the oil for excessive metal debris during oil changes is also highly recommended. Whenever changing the chain, the following must also be considered:

Chain guides - guide arms keep the chain in line as it revolves. Worn guides cause the chain to jump from the sprockets, or slacken or loosen with destructive results.

Tensioners - designed to maintain tension and prevent slack, a faulty tensioner can lead to sudden failure by creating a wave of slack that disrupts valve timing. It can even snap the chain.

Sprockets - worn teeth cause the chain to jump, or even derail, compromising timing accuracy. This results in power loss and risks valve and piston ‘interference’.

To ensure best practice is followed, BGA recommends replacing all replacing all associated parts when working on engine timing components.

 

Market Opportunities

It is not only the premium marques that are embracing this technology. Some Vauxhall, Citroën, Peugeot, VAG, Renault and Ford engines also use timing chains.  In fact, 1 in 4 UK cars use a chain to drive the engine. With over 8 million vehicles fitted with timing chains, this this opens up a huge opportunity for motor factors.

There are many opportunities for factors to break into the market using BGA Timing Chain Kits. Equivalent parts from OE or the dealer can be extremely expensive. The BGA Timing Chain Kit range gives the factor a huge advantage as they will have access to next-day stock at a competitive price.

BGA timing chain kits contain all of the parts needed, and are available as kits, full kits, and VVT kits to suit the job and the budget.

Kits contain chains, tensioners and guides

Full kits contain sprockets, chains, tensioners and guides

VVT Kits contain the full kit, plus VVT sprockets

The range currently covers over 230 kits, many of which are manufactured only by BGA and are not offered by any other supplier in the Aftermarket.

Product Quality

Quality assurance processes start at the very beginning of manufacture, where parts are inspected for material, dimensional and functional performance. Parts are checked again prior to distribution, to ensure that all components match high standards for performance and durability. All BGA products are guaranteed under BGA’s comprehensive warranty scheme.

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