17-04-2020, 09:31 PM
(This post was last modified: 17-04-2020, 09:32 PM by Stuart Giles.)
When I was a proper newby I owned a car with a massive brake pull. I spent quite a lot of time on brake adjustment, chalking the linings to check consistent contact area etc. When I finally swapped the brake drums side to side and immediately swapped the massive brake pull from one side to the other, close inspection of the drums revealed the two different friction surfaces, where only one drum had a steel liner. Apart from the fact that the steel liner has poor braking friction by comparison with cast Iron, there isn't a great deal of original brake drum metal material left around the shrunk in steel liner. A brake drum failure at any speed could spoil your whole day; so any of these I come across (either I'm unlucky or they do seem quite common) go straight to the scrap bin.