Masterparts supplies mechanical cam followers for most vehicle makes and models, at branches across South Africa and in Namibia. We also offer convenient delivery.
What do the mechanical cam followers do in a car?
Mechanical cam followers – or tappets – are critical engine components. They convert the camshaft’s spinning motion into the linear up and down movement required to open and close the engine’s valves.
Depending on the design and configuration of the engine, vehicles can have up to 16 mechanical cam followers working in tandem to open and close the intake and exhaust valves.
While motion conversion is a primary function, mechanical cam followers reduce wear between the cam and valve train, and ensure the opening and closing of the valves synchronises with the up and down movement of the pistons.
Mechanical cam followers are manufactured from high-strength alloy, high-carbon chrome and stainless steels, and come in a range of shapes, sizes and designs.
How do mechanical cam followers work?
Cam followers sit directly on the cam lobes, and are designed to follow the lobes’ contour.
As the camshaft rotates, the cam lobe lifts and pushes the cam follower upwards. This upward motion converts the camshaft’s rotational movement into a vertical thrust that opens the valves.
Animated 3-D view of a roller lash pad (in red) in an internal combustion engine. Source: Silberwolf, CC BY-SA 2.5, via Wikimedia Commons.
As the cam lobe rotates away from the follower, the valve spring pulls the valve tightly closed.
This regulated movement of the valves controls the precise flow of air and fuel into the cylinders, and the outflow of exhaust gases.
Signs of failing mechanical cam followers
Worn or damaged mechanical cam followers can impact the efficiency of the engine and performance of the car.
Signs to look out for include difficulty starting the engine, poor fuel delivery, loss of power and a car that misfires or stalls.
Where to get mechanical cam followers from Masterparts
We stock leading brand mechanical cam followers to fit most engine valvetrains.
Mechanical cam followers in and around Cape Town:
Mechanical cam followers in Gauteng:
Mechanical cam followers in KwaZulu-Natal:
Mechanical cam followers in Namibia:
Along with mechanical cam followers, Masterparts supplies a full range of suspension, steering, engine, braking and electronic parts for cars. Contact us if there’s a part you need and we’ll do our best to help.
