The 1939 Pontiac

The 1939 Pontiac
The story of my two Pontiacs

Sunday, 20 July 2014

More about brakes


I jacked the car up in the rear and removed the right rear hub for inspection. I concluded from the inspection the following:
  • The brake cylinder may be OK however the rubber boots are perished and things a generally quite dirty and rusty. The brake shoes will need to be removed to fit the rear brake cylinder. I have already discovered that the bleeder valve was seized and the 3/8”spanner is unable to grip the hexagon so maybe it is burred or else an odd size.

  • The brake shoes look straight forward to remove however not so in practice. Tried removing the spring with hawk-beaks however the spring is way too strong and under tension so definitely need to research technique and tools required for this job.
  • There is no break hose on the right rear. The brake line attaches directly to the back of the rear wheel cylinder. On the other side (left) however there is a brake hose which attaches between the brake line and the rear wheel cylinder. I need to research if this it right or not. The brake hoses on the front look new?
  • The brake line running from the right rear over the diff to the centre joiner is copper therefore not likely to be rusty. The line is dirty however probably in good condition. The centre joiner however is a different story and looks very corroded so should be replaced. It may even be a challenge getting it to unscrew.  Probably best is dismantle, remove, clean and reinstall all the brake lines. Do this before deciding if it is necessary to buy new brake lines.

  • I need to research where I could buy the new brake line joiners?
  • The brake shoes should probably be relined while I am about it. I think I have a new set of brake linings (otherwise buy).  I need to esearch how to go about relining the brakes. Do I need any special tools? Where do I find the rivets to attach?
  • I intend to bath the brake drums, shoes, springs etc. in molasses. First I need to figure out how to remove the shoes (see 2 above). When apart I will clean up all the parts, repaint them (when I have decided what chassis paint I will be using) and reassemble spanking new.
  • For now I re-attached the wheel hub & wheel so I could get on with engine issues, and in the meantime I will follow up on actions above.

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