Hooniverse 101 is intended as an introduction to auto maintenance and function, so as to give inexperienced car owners a leg up on either tackling simple maintenance tasks themselves, or being better informed when going to a shop, potentially helping to not get ripped off. Today, in part 2, we are wrapping up our discussion on the function and maintenance of the drum brake.
Out With The Old, In With The New
When we last left our poor Datsun 240Z, it was up in the air with its shoes pulled off. Now that we’ve completed our inspection of the wheel cylinder and bearing surfaces, we’re going to start reassembling the brakes, and will be replacing a number of parts.
If everything looks good then it is now time to lube up and dive in with the new shoes. In the case of the Datsun, you’re expected to put a little high-temp grease on the supporting blocks on the backing plate (there are three on each side, looking like little dashes) as well as on the pivot points.
Once that is done you’ll need to decide which spring goes where in re-assembly and this is where pictures and the properly assembled other side become invaluable. In my case, the black spring with the s-shaped ends proved to be the one that is impossible to install with the shoes in place so I slotted that in while they were off the car. The spring and shoes combo then gets put in place, with the bottom of the shoe correctly slotted into either side of the wheel cylinder.
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