Author Topic: Willys Drum Size  (Read 1454 times)

WillysTom1

  • Full Member
  • ***
  • Posts: 107
    • View Profile
    • Email
Willys Drum Size
« on: February 16, 2016, 08:11:15 AM »
  I am first time user. What is the minimum inside diameter size for my 1955 Willys Custom's drums? I have my brake shoes adjusted up as tight as I can and it still does not stop real well ( even for drum brakes). I am assuming that too little metal is left.
    By the way, there is still time to register and show your KFW cars at the Lakeland Fl Carlisle Events car show that we are participating in. Out of the 25 vehicles that we have registered we have eight that have the Willys name on them and another seven that had the Willys engines. We do have the 1963 Brazilian Willys 2600 from Bill Tilden's estate also showing up. Please let me know if you are interested in a few days of sunshine and a great car show!
1955 Willys Custom
Former owner of 1951 Kaiser Deluxe, 1951Henry J, 1955 Willys Bermuda

joefrazer

  • Hero Member
  • *****
  • Posts: 4043
    • View Profile
Re: Willys Drum Size
« Reply #1 on: February 16, 2016, 09:36:10 AM »
Today's lining compound is harder than what was originally used. Make sure the drum's braking surface isn't glazed and it helps to scuff the lining surface a bit.

I will be attending the show in Lakeland.

WillysTom1

  • Full Member
  • ***
  • Posts: 107
    • View Profile
    • Email
Re: Willys Drum Size
« Reply #2 on: February 16, 2016, 12:08:11 PM »
  Thanks Jim, I will try that.
1955 Willys Custom
Former owner of 1951 Kaiser Deluxe, 1951Henry J, 1955 Willys Bermuda

joefrazer

  • Hero Member
  • *****
  • Posts: 4043
    • View Profile
Re: Willys Drum Size
« Reply #3 on: February 16, 2016, 04:18:53 PM »
About the drum, it's a 9" unit and according to the shop manual, it shouldn't be turned more than .030" - resulting in a drum that's .060" oversize.

MarkH

  • Hero Member
  • *****
  • Posts: 1083
    • View Profile
    • Email
Re: Willys Drum Size
« Reply #4 on: February 16, 2016, 07:22:07 PM »
One other thing to consider if your drums have been turned recently or your shoes have low miles is that they might improve by being arched to match the drum radius. They will eventually wear to match the drums without arching though.
Fully restored '54 Aero Lark
Rusty '58 Austin Healey 100-Six
Barely running'74 Chevelle Malibu

Barnum

  • Sr. Member
  • ****
  • Posts: 346
    • View Profile
    • Email
Re: Willys Drum Size
« Reply #5 on: February 16, 2016, 11:47:34 PM »
If it is rear drum. Is your emergency brake cable free ? I found mine were frozen and kept the shoes from moving freely when I installed new shoes. It may seem adjusted as tight  as it will go.
« Last Edit: February 16, 2016, 11:51:17 PM by Barnum »
1968 Buick Skylark Convertible
1954 Aero Eagle
Taylor Brugman

WillysTom1

  • Full Member
  • ***
  • Posts: 107
    • View Profile
    • Email
Re: Willys Drum Size
« Reply #6 on: February 17, 2016, 07:05:42 AM »
Thanks everyone for the comments.  I will make good use of them.
1955 Willys Custom
Former owner of 1951 Kaiser Deluxe, 1951Henry J, 1955 Willys Bermuda