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Thread: R154 + RA28 - Problems with Clutch master!

  1. #1
    Mad Man Grease Monkey 77GZE's Avatar
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    Default R154 + RA28 - Problems with Clutch master!

    Hey, im having some dramas with clutch master cylinder i belive.
    I have a new clutch, only about 5000km old (hard 5000km tho)
    and only had to adjust it once, and already i have run out of adjustment on the pedal, clutch is all the way off the floor and sometimes has problems dis-engaging.
    Yes it is bled properly,
    and the drama i belive is after looking at a stock jza70 master cylinder it is alot longer, therefore more fluid and throw?
    Maybe my stock RA28 master needs to be replaced with something bigger?
    Has anyone else ever has a problem such as this?
    Any ideas welcome!!
    It is a brass button 9 puck and an R154
    Stock r154 slave cylinder (not leaking)
    and Stock ra28 master cylinder.

    Thanks
    Steve
    -------------------------------------
    Cheers, Steve

    1jz ra28 - AKA - Tyer Fryer
    1984 ma61 - stock and slow - ACE condition

  2. #2
    Backyard Engineer Domestic Engineer airfireman1's Avatar
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    Default Re: R154 + RA28 - Problems with Clutch master!

    Every blokes after a longer one !!!!!!!
    have you worn it out allready steve
    Cheers Dave


    1977 RA28
    1972 TA22
    1984 Supra

  3. #3
    Mad Man Grease Monkey 77GZE's Avatar
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    Default Re: R154 + RA28 - Problems with Clutch master!

    lol. i think i need an extension! lol
    -------------------------------------
    Cheers, Steve

    1jz ra28 - AKA - Tyer Fryer
    1984 ma61 - stock and slow - ACE condition

  4. #4
    Junior Member Automotive Encyclopaedia
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    Default Re: R154 + RA28 - Problems with Clutch master!

    Quote Originally Posted by 77GZE
    Hey, im having some dramas
    i have run out of adjustment on the pedal,
    Yes it is bled properly,
    and the drama i belive is after looking at a stock jza70 master cylinder it is alot longer, therefore more fluid and throw?
    Has anyone else ever has a problem such as this?
    Any ideas welcome!!
    slave cylinder (not leaking)

    i think i need an extension! lol
    Drama is right!
    The amount of fluid will only change with the diameter of the clutch MC or a change to the amount of travel from its push-rod, not the cylinders length.
    Does it bottom out?
    'I've scrapped better.' John stated when asked about the car by the guy with the silver tipped cowboy boots!

  5. #5
    practicing idiot Automotive Encyclopaedia sheepers's Avatar
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    Default Re: R154 + RA28 - Problems with Clutch master!

    i had big problems with the original slave that i was using with the dellow kit i bought for the 1JZ. the pedal pressure was so high that it blew the seals out of the master cylinder every month.
    in the end i put a massive slave off a land cruiser (15/16's i think) on it to reduce pedal pressure.
    the result of this is that i have quite long pedal travel but not excessive, and the original celica (AE86) clutch master is up to the job of supplying enough fluid for this big slave.
    might be something else????


    sheepers.

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