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67 cj wheel cylinders

Discussion in 'Early CJ5 and CJ6 Tech' started by OHALE, Feb 26, 2010.

  1. OHALE

    OHALE New Member

    I have a 67 cj w/ 231 does anyone know if the early manufactor cj's had 66 style brakes. Everthing i read says 67's have a split master cylinder. Mine doesn't. Also the wheel cylinders look to be the earlier style.
     
  2. sparky

    sparky Sandgroper Staff Member Founder

    Federal mandate for dual chamber MC started on the 1968s I thought?
     
  3. OHALE

    OHALE New Member

    May have i have just seen duel m/c referenced for the 67. That's why i/m asking
     
  4. nickmil

    nickmil In mothballs.

    '67 was the year the mandate was passed but was not mandatory until '68. That's why some vehicles switched in '67 and some in '68. The '67 Tux V-6 I just parted had a single reservoir master cylinder.
     
  5. w3srl

    w3srl All-around swell dude Staff Member

    A lot of '67 vehicles had the dual MC, some still had a single. Dad had a '67 Impala with a dual, my uncles '67 Biscayne still had a single. My understanding was that '68 standards required the dual MC, along with side marker lights, seatbelts and closed crankcase systems among others.
     
  6. windyhill

    windyhill Sponsor

    all '67 cj5's I've seen still had a single.
     
  7. Patrick

    Patrick Super Moderator Staff Member

    Me too.
     
  8. panzer

    panzer Super Mod Staff Member

    My friends '67 has a dual.
     
  9. fletcher0780

    fletcher0780 Member

    I've got an early 67 and a late 67. The early has a single MC and the late has a dual.
     
  10. chipmc

    chipmc 67 pos

    my 67 has dual resivoir and step bore so it must be late 67 cj5 and 10" brakes.
     
  11. Chianti10

    Chianti10 New Member

    My 67 has a single. It's memorable because it's low in the engine compartment and you have to access it through the cutout in the driver's side floorboard. The cap on mine is stuck and I can't get it to move with the limited room down there.
     
  12. curliegreen

    curliegreen New Member

    I have a 67 with single MC and 10" or should I say it did. Putting on 4 wheel dics and Fedex today dropped off the Herm's dual MC kit.
     
  13. windyhill

    windyhill Sponsor

    Try a socket and a universal on a 2 foot extention and access it from under the hood.
     
  14. kaiser_willys

    kaiser_willys Well-Known Member

    x2 and if you have one of those long funnels you can fill it from there too;)
     
  15. chipmc

    chipmc 67 pos

    i use a short funnel w/rubber hose pushed on it .... and access it w/long extension as well
     
  16. nickmil

    nickmil In mothballs.

    I found a marinade syringe with a hose on the end is cleaner and works quite well also.
     
  17. SmokinIdahoan

    SmokinIdahoan Avian Flu Controller

    thats a GREAT idea - i never thought of that one - thanks! Not only for filling your MC, but probably good for lots of things - like filling my ross box (and not dumping gear oil all over LOL) :beer:
     
  18. jay Knowles

    jay Knowles New Member

    My 67 has dual master cylinder but 9" brakes. Also the wheel cylinders on it look like the ones used up to 1953?
     
  19. PeteL

    PeteL If it wasn't for physics, and law enforcement... 2024 Sponsor 2023 Sponsor 2022 Sponsor

    "Originally Posted by Chianti10
    My 67 has a single. It's memorable because it's low in the engine compartment and you have to access it through the cutout in the driver's side floorboard. The cap on mine is stuck and I can't get it to move with the limited room down there."




    Be careful with un-stucking that cap. It may be cast metal, and replacements are hard to find.