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Brake Drum Machining

Brake drums rely on good contact between the brake Shoes and the Brake Drum. As the drums get older they can get scored and wear unevenly. They may also warp a bit due to constantly getting hot and cold in normal operation.

When the shoes are replaced they have a perfect surface and if the old drum is installed without machining back to a perfect surface, the shoes only grip on the high points and brake efficiency can be poor.

Brake Drum in Lathe being Skimmed

Machining Brake Drum 550


Machined - Un machined Brake Drum 550


The left drum is un-skimmed and the right has just been skimmed.



The Brake Drum back on the Car

Brake drum on car 550





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Gleniti Auto Services 2022
356 Wai-iti Road