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Thread: Brake Drums

  1. 2nd July 2016, 04:07 PM #11
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    123rover50
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    These drums have only one countersunk screw.
    Too much trouble to machine up bushes, easier to just undo the big nuts , slip off the hubs and slide the metric hubs on. Probably safer as well as the wheels I am using are made for the big nuts anyway.
    As I said its not a resto but a speed machine
    K
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  2. 2nd July 2016, 06:45 PM #12
    Aaron IIA
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    What is the problem with using drums that have oversize stud holes? I have been doing just this, SIII drums on SIIa hubs, for the last ten years or so with no problems to date.

    Aaron
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  3. 2nd July 2016, 06:53 PM #13
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    Quote Originally Posted by Aaron IIA View Post
    What is the problem with using drums that have oversize stud holes? I have been doing just this, SIII drums on SIIa hubs, for the last ten years or so with no problems to date.

    Aaron
    The braking force tries to rotate the drums, usually the studs stop the rotation. With oversize stud holes the countersunk screws and the clamping force between drum, hub & wheel are the only things stopping the drum rotating until the edges of the holes contact the studs.

    Not ideal but sounds like it has been OK for you.


    Colin
    '56 Series 1 with homemade welder
    '65 Series IIa Dormobile
    '70 SIIa GS
    '76 SIII 88" (Isuzu C240)
    '81 SIII FFR
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  4. 2nd July 2016, 07:21 PM #14
    Aaron IIA
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    The drum can't go anywhere. It is still captive on the studs. It may rotate a little bit from where you first installed it, but then it rests on the studs. If you are concerned about the small locating screw not being able to handle the torque of the drum, then leave it out.

    Aaron
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  5. 2nd July 2016, 07:58 PM #15
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    Quote Originally Posted by Aaron IIA View Post
    The drum can't go anywhere. It is still captive on the studs. It may rotate a little bit from where you first installed it, but then it rests on the studs. If you are concerned about the small locating screw not being able to handle the torque of the drum, then leave it out.

    Aaron
    Personally I'd rather fit the correct drums.


    Colin
    '56 Series 1 with homemade welder
    '65 Series IIa Dormobile
    '70 SIIa GS
    '76 SIII 88" (Isuzu C240)
    '81 SIII FFR
    '95 Defender Tanami
    Motorcycles :-
    Vincent Rapide, Panther M100, Norton BIG4, Electra & Navigator, Matchless G80C, Suzuki SV650
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  6. 2nd July 2016, 08:38 PM #16
    Aaron IIA
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    Certainly. But have you found any vendors who sell them locally?

    Aaron
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  7. 3rd July 2016, 05:43 AM #17
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    Quote Originally Posted by Aaron IIA View Post
    Certainly. But have you found any vendors who sell them locally?

    Aaron
    Aaron,
    I haven't been looking, because all mine have been usable.
    The part number listed earlier should be correct but unless someone buys one we won't know.

    If I remember I'll drop into 4 Wheel Drives in Melbourne & ask.


    Colin
    '56 Series 1 with homemade welder
    '65 Series IIa Dormobile
    '70 SIIa GS
    '76 SIII 88" (Isuzu C240)
    '81 SIII FFR
    '95 Defender Tanami
    Motorcycles :-
    Vincent Rapide, Panther M100, Norton BIG4, Electra & Navigator, Matchless G80C, Suzuki SV650
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  8. 6th July 2016, 03:37 PM #18
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    gromit
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    Quote Originally Posted by Aaron IIA View Post
    Certainly. But have you found any vendors who sell them locally?

    Aaron
    Spoke with Murray at 4-Wheel Drives and he hasn't seen the correct drums for some years but he doesn't do the ordering so maybe they are available if you order the correct part number.
    Someone will either have to order them from somewhere like Paddocks or get them to answer a question by email.

    Colin
    '56 Series 1 with homemade welder
    '65 Series IIa Dormobile
    '70 SIIa GS
    '76 SIII 88" (Isuzu C240)
    '81 SIII FFR
    '95 Defender Tanami
    Motorcycles :-
    Vincent Rapide, Panther M100, Norton BIG4, Electra & Navigator, Matchless G80C, Suzuki SV650
    Reply With Quote Reply With Quote
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