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Brake Proportional Valve: Adjustment

Discussion in '1st Gen. Tacomas' started by sirsaechao, Jul 28, 2012.

  1. Jul 28, 2012 at 10:07 AM
    #1
    sirsaechao

    sirsaechao [OP] Well-Known Member

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    Just installed my Wheeler's 5 pack and BPV from Wheeler's and I first notice when even at slow speed over a speed bump if I hit the brakes the rear locks up causing my tires to squeal. This morning I almost ran a yellow light but I stopped from 50 to 0 and my ass end was going left right and tires again squealing. How do you adjust the rod? I know the lower it is the less braking the rear has but what rod am I supposed to pull down on? Thanks.
     
  2. Jul 28, 2012 at 11:41 AM
    #2
    twfsa

    twfsa Well-Known Member

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    Raise the BPV with a bracket, there not that difficult to make, if you raised the rear 2 inches raise the BPV bracket 2.
     
  3. Jul 28, 2012 at 11:50 AM
    #3
    tacoma04

    tacoma04 Laissez les bons temps rouler

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    Here is a link to the BAMF BPV relocation bracket.

    Link
     
  4. Jul 28, 2012 at 12:44 PM
    #4
    sirsaechao

    sirsaechao [OP] Well-Known Member

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    I guess you both don't understand my question. I have a bpv bracket for my 5 pack. I think the bpv bracket raised it to high for the amount of lift I got from the new leaf pack. I need to bend the rod down more = closer to axle = less rear brakes. I just don't know which rod I am supposed to bend down.
     
  5. Jul 28, 2012 at 1:19 PM
    #5
    tacoma04

    tacoma04 Laissez les bons temps rouler

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    So the bracket doesn't have multiple holes to let you select the height of the valve like the BAMF bracket? Everyone just matches the height of the lift and no problems. Can you drill additional holes in your bracket to lower the valve?

    There is an adjustment for the valve. I read it in the FSM once, but don't remember if longer or shorter increased or decreased braking.

    Edit: here is a link to the FSM. Look at page BR-47. Does that address your problem?

    Link

    Got a pic? Might help us understand.
     
  6. Jul 29, 2012 at 7:13 AM
    #6
    twfsa

    twfsa Well-Known Member

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    Post a picture of that BPV bracket.
     
  7. Jul 29, 2012 at 10:19 AM
    #7
    sirsaechao

    sirsaechao [OP] Well-Known Member

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  8. Jul 30, 2012 at 5:55 AM
    #8
    twfsa

    twfsa Well-Known Member

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    I don't know how much rear lift you gained but to me it appears the bracket that mounts the BPV is way to high I would measure where I was at before installing the bracket ( rear vehicle height ) and would lower it, as necessary by drilling more holes, not bending or adjusting any thing.
     
  9. Jul 30, 2012 at 6:10 PM
    #9
    nswsparky

    nswsparky Well-Known Member

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    well you think about it if your brakes are locking up on brake application it thinks you are fully loaded and squated out. make the rod shorter so it enters the valve at a downward angle.
     
  10. Aug 1, 2012 at 9:06 AM
    #10
    sirsaechao

    sirsaechao [OP] Well-Known Member

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    I ordered BAMF's bracket but I think I might try not even running one. I got about 1" lift in the rear with the leaf springs. And the generic kit I got was meant for 2-2.5" rear lift.
     
  11. Aug 1, 2012 at 9:28 AM
    #11
    twfsa

    twfsa Well-Known Member

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    The only thing that's bad about not raising the BPV is front brakes work harder and wear out faster, probably a safety issue also, save your cash and modify the bracket you already have.

    If the present bracket is for a 2-2.5 lift and your only @ 1 inch lift there's your problem.
     
  12. Aug 1, 2012 at 9:33 AM
    #12
    sirsaechao

    sirsaechao [OP] Well-Known Member

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    Meh true. I can also sell this one to someone with a larger rear lift.
     
  13. Aug 1, 2012 at 9:57 AM
    #13
    Blackdawg

    Blackdawg Dr. Frankenstein

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    Ya that bracket is too high.

    My 5 packs only gave me about an inch or inch and a half.

    The BAMF one is great as if you decide to add the wheelers AAL later to the pack..just move the BPV up a few holes.
     
  14. Aug 1, 2012 at 10:44 AM
    #14
    Smokey11

    Smokey11 You Can't Fix Stupid !

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    Installing the same set up this weekend, do you think you could just drill a hole above the first bolt on the bottom and mount it that way and it should get you close right?
     
  15. Aug 1, 2012 at 12:24 PM
    #15
    sirsaechao

    sirsaechao [OP] Well-Known Member

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    I haven't gotten a measuring tape to see but it appears the middle solid metal has plenty room to drill two more holes
     
  16. Aug 1, 2012 at 12:38 PM
    #16
    Smokey11

    Smokey11 You Can't Fix Stupid !

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    Well if you get it squared away by Sat morning could you post results please? If not I will just take a stab at it and drill holes in mine until it works !
     
  17. Aug 1, 2012 at 8:33 PM
    #17
    sirsaechao

    sirsaechao [OP] Well-Known Member

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    Blah don't have a larger drill bit so imma wait for my BPV from BAMF.
     
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