1. Registration trouble? Please use the "Contact Us" link at the bottom right corner of the page and your issue will be resolved.
    Dismiss Notice

V6 Brake Pedal Clearance

Discussion in 'Early CJ5 and CJ6 Tech' started by CJ5V6s, Oct 21, 2008.

  1. Oct 21, 2008
    CJ5V6s

    CJ5V6s New Member

    Gastonia, NC
    Joined:
    Jun 22, 2008
    Messages:
    9
    Got the engine sitting in the Jeep (231 - 77, T14 and D20) and the pedals mounted (double master). If the engine sits finding its own location, the brake pedal hits the bell housing/block. I can pull the rear of the engine over and clear the pedal, but just does not feel correct.

    So the questions are:

    Dimension from driver frame rail to center line of engine (crank pulley) and dimension to center output yoke on D20 (should this combo be centered)?

    Is there a different Clutch linkage pivot shaft that is longer or am I going to have to make my own? I do not like the idea of spacing the short one off the frame, all the pulls would be out of line.

    I will load pics tonight if needed.
     
  2. Oct 22, 2008
    CJ5V6s

    CJ5V6s New Member

    Gastonia, NC
    Joined:
    Jun 22, 2008
    Messages:
    9
    Here are the images

    Showing interference with bell housing/block:
    [​IMG]

    Showing clutch bell crank shaft with engine in a position for brake pedal to clear:
    [​IMG]
     
  3. Oct 22, 2008
    panzer

    panzer Super Mod Staff Member

    Columbus, OH
    Joined:
    Dec 9, 2003
    Messages:
    1,245
    I went through this a while back. My tranny is the T98.

    [​IMG]

    Top one was original on my CJ. The lower one was the replacement.
    I had a section cut out and a solid rod inserted then welded back together.
    I'm of the opinion there are a couple of different sizes of these bell crank shafts.
     
  4. Oct 22, 2008
    w3srl

    w3srl All-around swell dude Staff Member

    Port Orange, FL
    Joined:
    Nov 6, 2002
    Messages:
    4,275
    The V6 brake pedal is also bent differently than the F4 one, but all of the repro ones available are made from the F4 design.

    There may still be some old threads here on this, as others on here have had similar issues.
     
  5. Oct 22, 2008
    CJ5V6s

    CJ5V6s New Member

    Gastonia, NC
    Joined:
    Jun 22, 2008
    Messages:
    9
    Panzer,

    Thanks for the pic, do you have the overall dimension of the shaft you had modified? Did you have to put new holes in the cross member that the transmission mounts attach?


    The pedal is correct for the V6, this Jeep had a 225 that I am going to rebuild in time. This pedal cleared it, but had a T86 and D18 with offset tapered rear axle.
     
  6. Oct 22, 2008
    jeep2003

    jeep2003 Well-Known Member

    Upstate NY
    Joined:
    May 30, 2006
    Messages:
    1,918
    Are your brakes blead? My setup is the same way but the pedal doesnt go down far enough to hit anything
     
  7. Oct 22, 2008
    panzer

    panzer Super Mod Staff Member

    Columbus, OH
    Joined:
    Dec 9, 2003
    Messages:
    1,245

    No. I used the old one as a measurement. I added about 3/8" to the length so it was
    closer to the tranny and frame. If you are talking about the holes in the tube, they
    were OK where they were. They only are stops for the spacer/spring/felt/seal setup.
    It was a bit tight getting in but once it was in it was very smooth.

    The levers were in the same place as before. I didn't have to modify them. I basically
    took a section out of the middle.
     
  8. Oct 23, 2008
    1960willyscj5

    1960willyscj5 Well-Known Member

    Mesa, Arizona
    Joined:
    Nov 27, 2006
    Messages:
    2,793
    Has your engine and tranny/tc been moved to the passenger side?
    I understood that the center line of the crank and tranny was supposed to be offset to the drivers side a couple of inches or so from the factory. Am I wrong about that?
     
  9. Oct 23, 2008
    panzer

    panzer Super Mod Staff Member

    Columbus, OH
    Joined:
    Dec 9, 2003
    Messages:
    1,245
    I don't believe so. Motor mounts are stock. Cross member is stock. I supposed the PO
    could have done some modification but I haven't seen any.
     
  10. Oct 23, 2008
    barucker

    barucker Member

    St. Louis area
    Joined:
    Nov 10, 2006
    Messages:
    87
    When I switched to the dual chamber master cylinder with bracket mount instead of frame mount, I also changed the pedal, the one for the bracket mount had an offset on the mount for the pushrod, holding it further from the pedal. I think this just made for better alignment with the master cylinder, and may not affect your situation, but I thought I would mention.

    Another thought: Will the pedal be able to be depressed that far with the floor in? Do you need a longer pushrod in your master cylinder?
     
  11. Oct 23, 2008
    CJ5V6s

    CJ5V6s New Member

    Gastonia, NC
    Joined:
    Jun 22, 2008
    Messages:
    9
    The mounts are stock and the engine is to the drivers side. The frame that this combo came off of does have a spacer on the frame rail to push the transmission/xfer case over (1/2") by pushing the bell crank for the clutch over. This would be the same as adding to the length that Panzer did.

    This has the brake pedal that goes with the mount. I am not near the Jeep right now but does not seem that the travel was 1/2" or so before it hit the bell housing/engine (a lot less on the master cyl). A soft pedal would hit and did not think that if I ever had a need to pump the brakes that it would with the little travel. The pedal should be able to move a couple of inches to hit the floor.

    When did the D20 go into a CJ? Maybe I need to find someone with a Commando, V6 and D20. Wonder how close the frames are?
     
New Posts