Welcome! Becoming a registered user of ShortWingPipers.Org is free and easy! Click the "Register" link found in the upper right hand corner of this screen. It's easy and you can then join the fun posting and learning about Short Wing Pipers!

Thanks Thanks:  0
Page 1 of 4 123 ... LastLast
Results 1 to 10 of 33

Thread: Disk Brake upgrade for 1955 PA22-150

  1. #1
    Glen Geller's Avatar
    Join Date
    Dec 2007
    Location
    Beaverton, Oregon, United States
    Posts
    1,462
    Post Thanks / Like

    Default Disk Brake upgrade for 1955 PA22-150

    Hi Folks,
    This has been addressed elswhere ad nauseum, but I hope I can get a definitive answer to the nagging question:
    What is the best/easiest/surefire-sign-off/economical route to convert the original drum brakes to a more modern disk brake?
    I think in addition to changing the brakes & wheels, I might also switch from the NRBB to the Steve's Master Cylinder (low-profile under the hood on my '55 PA22.)
    Among the suggestions I have heard around the various water coolers are the Stinson 108 brakes from AC Spruce etc; Piper Cherokee; PA22-108 parts. Of course it is important to get them approved by the FSDO (we have a pretty good FSDO here at KHIO due to the great number of restorations and homebuilts in the region.)
    And if the disks are installed does that mean stock Piper wheel pants will no longer fit (or will possibly fit with some modification?)
    I have a very good A&P who knows his way around fabric Pipers for 50 years, but we wanted a consensus from the online gang to help avoid pitfalls.
    What do you folks with disk brakes on your PA22's suggest? Spare no details please!
    Thanks,
    Glen
    Glen Geller
    1955 PA22-150 "One For Papa!"

  2. #2

    Join Date
    Feb 2008
    Posts
    9
    Post Thanks / Like

    Default Re: Disk Brake upgrade for 1955 PA22-150

    Glen, I have the paperwork for installing disc brakes on a PA 22 135, 150, 160 It's the Williams STC paperwork with 3 pages of prints and details for which parts to use.It calls for parts off of Cessnas or Cherokees. I would like $50.00 for the paperwork. I used Cessna 150 master Cylinders on my exp. and the Disc brakes off the Williams STC . They work super, however I am sure you can't use your wheelpants without modifing them. Thanks Sam

  3. #3
    Administrator Steve Pierce's Avatar
    Join Date
    Nov 2007
    Location
    Graham, Texas, United States
    Posts
    15,454
    Post Thanks / Like
    Blog Entries
    1

    Default Re: Disk Brake upgrade for 1955 PA22-150

    The Williams STC SA09150SC uses a wheel assembly 40-86 and brake assembly 30-55. I'm not sure what that is off of. Johnny sold most of his stuff to someone in Canada who advertises in the SWPC News. He might can help. According to the Type Certificate Data Sheet the disc brakes are only approved on the PA22-108. They are a 40-28 wheel assembly and I think I have a spare set of the wheel and brake combination. Univair has an STC SA91AL to replace the drum brakes on a PA22-150-160-135 with the PA22-108 wheels and disc brakes. I searched the STC data base and those are the only two STCs I could find. I have gotten and seen field approvals but we all know that can be easy or impossible depending on your own FSDO. Bodell brakes I thought were STC'd and you wouldn't have to cut the wheel pants.

  4. #4

    Join Date
    Jan 2008
    Location
    Indianapolis, Indiana
    Posts
    58
    Post Thanks / Like

    Default Re: Disk Brake upgrade for 1955 PA22-150

    I got a Field Approval, once, to install PA24-250 wheels and brakes on a PA22-160. But that was in the late 1980's. The Colt's gross weight is lower than the PA22 so I doubt FSDO would approve them. The Comanche brakes worked very well on the Tri-Pacer.

    A good place to start is by calling Cleveland 1-800-BRAKING (Bra King)

    Univair has an STC for disc brakes...that would be a lot easier than a field approval.

    Pat
    Indy, IN

  5. #5

    Join Date
    Dec 2007
    Location
    Indian Hills Airpark AZ 2AZ1
    Posts
    432
    Post Thanks / Like

    Default Re: Disk Brake upgrade for 1955 PA22-150

    I installed the "Stinson" brakes and a Steve's Aircraft brake booster on my PA-22. I opted for the Stinson kit since it was quite a bit cheaper than the components used on the Colt. I obtained a field approval for the installation. The Stinson kit fit perfectly. Univair was very helpful and supplied me with the correct spacer and bolts to make the installation. As for the wheel pants I don't care for them, but I can see that considerable modification would be required to fit them to the Cleveland Brakes.

    Cheers:
    Paul
    N1431A
    KPLU

  6. #6
    Glen Geller's Avatar
    Join Date
    Dec 2007
    Location
    Beaverton, Oregon, United States
    Posts
    1,462
    Post Thanks / Like

    Default Re: Disk Brake upgrade for 1955 PA22-150

    Well thanks all, I think I agree with Paul, and it turns out my hangar-mate did the Univair/Stinson version (~$1014 for brakes/wheels/hdwr and $400 for Steve's Booster) and he sent me copies of the 337s and all the other stuff.
    I'll be visiting my local FSDO shortly with all this paperwork and ask if they will approve it again: same FSDO office, same airport, same mechanic, identical plane! I am cautiously optimistic they will give me the green light to go ahead.
    Next week will be big OT at work and that should finance the bulk of the expense.
    Thanks again and don't be shy if you have more advice about this, I really appreciate it.
    Cheers,
    GG
    Glen Geller
    1955 PA22-150 "One For Papa!"

  7. #7

    Join Date
    Jan 2008
    Location
    Dundee,(Weston)NY and Hernando ,( Holder) Florida
    Posts
    405
    Post Thanks / Like

    Default Re: Disk Brake upgrade for 1955 PA22-150

    I used clevelands on my PA 22-160 many years ago. Called Cleveland ,told them what I wanted to do. Told them I did not want to buy new equipment. They said they didn't care and sent me all the paperwork for the whole assembly,blueprints and all. They are very helpful ,friendly people. I think my brakes came off an Arrow,can't remember. Still using the scott cylinder under the seat. I can skid the tires most anytime if I am not careful. Larry Huntley

  8. #8
    Chris Iriarte's Avatar
    Join Date
    Nov 2012
    Location
    Grosse Ile, MI
    Posts
    389
    Post Thanks / Like

    Default Re: Disk Brake upgrade for 1955 PA22-150

    So, I've been researching this topic on this site for a while and see quite a few options for the disc brake route for a PA-22. What is the most affordable route for someone willing to scour the Web for used parts?

    Chris

  9. #9
    Administrator Steve Pierce's Avatar
    Join Date
    Nov 2007
    Location
    Graham, Texas, United States
    Posts
    15,454
    Post Thanks / Like
    Blog Entries
    1

    Default Re: Disk Brake upgrade for 1955 PA22-150

    Field approval or Williams STC.

  10. #10
    piperrocks2013
    Guest

    Default Re: Disk Brake upgrade for 1955 PA22-150

    Quote Originally Posted by Steve Pierce View Post
    Field approval or Williams STC.
    Why couldn't A guy buy the Univair 199-23100 wheel kit used for the Pa22-20 gear?? Would they not fit??
    Im after disc brakes now and the Univair 199-27600 used for the Tripacer and Colt is outrageous price. I do have the Williams STC for toe brakes but I'm going to spend near 1000$$$ on used parts all attach photo of the Williams STC Drawing. I like the idea of the Stinson Disc brakes just bolting on??? Maybe that's route to go Univair has that kit for 2000$ approx. any advise appreciated.

Posting Permissions

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