Page 2 of 2 FirstFirst 12
Results 21 to 30 of 30

Thread: Installing a New Brake Master Cylinder

  1. #21
    Van Fan
    My Van(s):
    1988 TV Panel 4x4 5-Speed 1995 AWD Previa
    Join Date
    Jul 2018
    Location
    NC
    Posts
    29
    Rep Power
    1

    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.

  2. #22
    Forum Newbie
    My Van(s):
    1987 LE 4x4 5-Speed
    Join Date
    Aug 2015
    Location
    Burlington, VT
    Posts
    21
    Rep Power
    1

    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
    Van Fan
    My Van(s):
    1988 TV Panel 4x4 5-Speed 1995 AWD Previa
    Join Date
    Jul 2018
    Location
    NC
    Posts
    29
    Rep Power
    1

    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!

  4. #24
    Van Enthusiast
    My Van(s):
    1990 Hiace Super Custom 4WD diesel
    Join Date
    Sep 2016
    Location
    SoCal
    Posts
    214
    Rep Power
    1

    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
    Van Addict
    My Van(s):
    1987 Toyota 4wd Cargo Van
    Join Date
    Aug 2016
    Location
    Lakeside, Az.
    Posts
    393
    Rep Power
    1

    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
    Van Enthusiast
    My Van(s):
    1988 4WD LE 5 spd mnl
    Join Date
    Oct 2013
    Location
    so cal
    Posts
    167
    Rep Power
    1

    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.

  7. #27
    Van Enthusiast boogieman's Avatar
    My Van(s):
    1989 4x4 5 speed dlx 1987 4x4 5 speed cargo 1987 4x4 5 speed LE 1987 2wd 5 speed cargo conversion 1989 2wd auto cargo parts van
    Join Date
    Feb 2017
    Location
    abq, nm
    Posts
    235
    Rep Power
    1

    Re: Installing a New Brake Master Cylinder

    im curious if anyone knows of theres a difference in master cylinders from 1st to second gen vans? they seem to have different part numbers but after ordering a spare closeout for my 87, i just. bought back my 85 and it needs one...looks pretty identical to the 87 one so ill likely be installing it...anyone?

  8. #28
    Van Addict
    My Van(s):
    1987 Toyota 4wd Cargo Van
    Join Date
    Aug 2016
    Location
    Lakeside, Az.
    Posts
    393
    Rep Power
    1

    Re: Installing a New Brake Master Cylinder

    The only difference I see is the bore size. 86-89 have a 1" bore. The 84-85 have a 15/16" bore... what's a 16th of an inch between vans?



    I guess as long as it fits in the booster it would be fine imo. Stroke is the same... Worse case scenario is try it. I would happily send ya a used one to test fit from an 87 van.
    Last edited by Flecker; 05-13-2020 at 10:56 AM.

  9. #29
    Van Enthusiast boogieman's Avatar
    My Van(s):
    1989 4x4 5 speed dlx 1987 4x4 5 speed cargo 1987 4x4 5 speed LE 1987 2wd 5 speed cargo conversion 1989 2wd auto cargo parts van
    Join Date
    Feb 2017
    Location
    abq, nm
    Posts
    235
    Rep Power
    1

    Re: Installing a New Brake Master Cylinder

    ahhh nice catch, i know from the motorcycle world using a larger bore mc will make the lever feel stiff and hard, i wonder if the cailper pistons and wheel cylinders are smaller on the 1st gens..well its installed, i cant imagine its going to be an issue..

  10. #30
    Van Addict
    My Van(s):
    1987 Toyota 4wd Cargo Van
    Join Date
    Aug 2016
    Location
    Lakeside, Az.
    Posts
    393
    Rep Power
    1

    Re: Installing a New Brake Master Cylinder

    Quote Originally Posted by boogieman View Post
    ahhh nice catch, i know from the motorcycle world using a larger bore mc will make the lever feel stiff and hard, i wonder if the cailper pistons and wheel cylinders are smaller on the 1st gens..well its installed, i cant imagine its going to be an issue..

    For a bike, prolly weighs in at 4-600 lbs pending on model engine and such... that 1/16" would make a difference for sure, especially with a couple of small calipers.

    These piggy little vans? Not to sure, but it would prolly just grin at that 1/16"... Of course I have been wrong before. In my world theres 3 ways of doing things. The right way, the wrong way and then my way (it's just like the wrong way, but lots faster).

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •