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Thread: Installing a New Brake Master Cylinder

  1. #21
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    Re: Installing a New Brake Master Cylinder

    Quote Originally Posted by NickP View Post
    Hello,

    Great thread with loads of info. Went to start my 87 4x4 this morning and found my clutch pedal went completely soft and couldn't get it into gear. Looked up under dash and noticed the piston on the clutch master cylinder was covered in fluid and dripping a bit so I'm planning to replace. Given the amount of effort required to pull apart the dash and access the clutch master cylinder, should I go ahead and do the brake master cylinder while I'm at it? Any good reasons to wait until there is an issue with it? I'm pretty sure it's the original. Thanks and keep up the great work!
    I'd probably say yes, do them both.
    Taking the dash apart isn't a small thing and if one cylinder is going the other might not be far behind.
    Also, they are both attached to the same reservoir, which means you're going to be impacted both of them anyway.

    >>Check out the video link- https://youtu.be/nYmHK_KdiF8<<
    You'll pretty much see the whole process.

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    Re: Installing a New Brake Master Cylinder

    Quote Originally Posted by armorrell View Post
    I'd probably say yes, do them both.
    Taking the dash apart isn't a small thing and if one cylinder is going the other might not be far behind.
    Also, they are both attached to the same reservoir, which means you're going to be impacted both of them anyway.

    >>Check out the video link- https://youtu.be/nYmHK_KdiF8<<
    You'll pretty much see the whole process.
    Thanks for the reply! That's a great video. Parts are on the way and I'm planning to do both clutch and brake master + clutch slave.

  3. #23
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    Re: Installing a New Brake Master Cylinder

    Quote Originally Posted by NickP View Post
    Thanks for the reply! That's a great video. Parts are on the way and I'm planning to do both clutch and brake master + clutch slave.
    Excellent- hope it was helpful and you have a successful time getting it updated!

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    Re: Installing a New Brake Master Cylinder

    I'm planning to do both clutch and brake master + clutch slave.
    I learned in HS auto shop to do both ends of pressure systems(clutch) at the same time or you'll be doing it again.

  5. #25
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    Re: Installing a New Brake Master Cylinder

    Ok... I did find some Master cylinder repair kits at Rockauto for both the Brake, AND Clutch master's!

    I prefer to keep the OG Toyota/ Aisin bodies for these items. The steel they use is superior imo, and the bores of all the ones I have taken apart before always seem to be in great shape!

    So with some basic tools (only exotic thing the average joe may not have are a decent set of snap ring pliers and a quality brake line wrench), they can be rebuilt for roughly a third of the cost of the cheaper after market ones available... and about a fourth or less of the cost of the original Toyota parts.

    I might do a write up on rebuild if anyone is interested...
    Last edited by Flecker; 12-25-2018 at 01:21 PM.

  6. #26
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    Re: Installing a New Brake Master Cylinder

    Quote Originally Posted by Flecker View Post
    I might do a write up on rebuild if anyone is interested...
    I'd be interested if you ever find some time. Thanks! Gearing up to tackle the master and clutch cylinders and slave asap.

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