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Thread: Drum brake adjustment question.

  1. #11
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    Quote Originally Posted by Homestar View Post
    Thanks - I think that's why they feel so different - the old snails were stuffed and keeping them in adjustment was difficult. I've hot new snails in there now so I can adjust them properly, but I just can't seem to find the happy spot for them - I guess I'll get used to them.
    Do you have any rub/wear marks on the new shoes to indicate whether they are mating properly to the brake drums, were the brake drums machined, if not check for taper, inside to out on the drum braking surface. If tapered only part of the shoes would touch, if you pumped them they would seat on the drum and give a better pedal, but twisting the shoes which would accelerate wear, Regards Frank.

  2. #12
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    Homestar is offline Super Moderator & CA manager Subscriber
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    Hmmm, good thought there mate... The old shoes showed more contact on one side. I'll whip the drums off now I've been out a few times in it and check. Maybe I do need to have the drums skimmed.
    If you need to contact me please email homestarrunnerau@gmail.com - thanks - Gav.

  3. #13
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    Not always the drums - are the shoes sitting straight? Late backing plates have pressed protrusions that hold the shoes straight, but early ones have adjustable pins to hold them straight.

    John
    John

    JDNSW
    1986 110 County 3.9 diesel
    1970 2a 109 2.25 petrol

  4. #14
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    They seemed straight yes, certainly no visible signs, but I might run a square over them as well.
    If you need to contact me please email homestarrunnerau@gmail.com - thanks - Gav.

  5. #15
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    I remember you saying JD that some of the later Series with drums stopped quite well,,
    Just wondering if the 101's (by design) would be in that group?
    and Gav? a pic of the new shoes installed?
    "How long since you've visited The Good Oil?"

    '93 V8 Rossi
    '97 to '07. sold.
    '01 V8 D2
    '06 to 10. written off.
    '03 4.6 V8 HSE D2a with Tornado ECM
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    '16.5 RRS SDV8
    '21 to Infinity and Beyond!


    1988 Isuzu Bus. V10 15L NA Diesel
    Home is where you park it..

    [IMG][/IMG]

  6. #16
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    Chucky stopped very well when I got him, but I've done 20,000KM since then and certainly in the last year they've been horrid.

    I'm more than 50% of the way there, just need some fine tuning.
    If you need to contact me please email homestarrunnerau@gmail.com - thanks - Gav.

  7. #17
    JDNSW's Avatar
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    Quote Originally Posted by Pedro_The_Swift View Post
    I remember you saying JD that some of the later Series with drums stopped quite well,,
    Just wondering if the 101's (by design) would be in that group?
    and Gav? a pic of the new shoes installed?
    I have no experience of the 101, so I can't comment on it, although being a 1970s design, I doubt that the MOD would have accepted it with poor brakes.

    Note that all unboosted drum brakes will suffer fade far more easily than discs, as the self servo action decreases, giving a multiplier effect, and pedal movement will increase as drums expand. Also, all drum brakes will lose effectiveness with water.

    Despite this, drum brakes can be quite effective, and Series 2a onward lwb ones are if in good condition, and swb ones aren't too bad either. But effectiveness is not the same as low pedal pressure!

    John
    John

    JDNSW
    1986 110 County 3.9 diesel
    1970 2a 109 2.25 petrol

  8. #18
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    This gives an indication how good the brakes are



    REMLR 243

    2007 Range Rover Sport TDV6
    1977 FC 101
    1976 Jaguar XJ12C
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    1971 Jaguar V12 E-Type Series 3 Roadster
    1957 Series 1 88"
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  9. #19
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    I can picture a huge speedbump out of shot on the right---
    "How long since you've visited The Good Oil?"

    '93 V8 Rossi
    '97 to '07. sold.
    '01 V8 D2
    '06 to 10. written off.
    '03 4.6 V8 HSE D2a with Tornado ECM
    '10 to '21
    '16.5 RRS SDV8
    '21 to Infinity and Beyond!


    1988 Isuzu Bus. V10 15L NA Diesel
    Home is where you park it..

    [IMG][/IMG]

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