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  1. EDMO

    Posted · Edited by Ed In Missouri

    Ron,

          I don't think the wall thickness of these spacers should be too critical - probably something like 1/8"?

    I would NOT weld it to the axle.

          BTW:   I have the attachment plates with the calipers.

    EDMO

  3. RDavidson

    Posted

    Ok, now I have a question about what holds the wheel so that it is spaced properly for the disc brake?

    I looked at the original gear and it looks like a bushing was slipped over the axle and welded in place, is that correct?

    Does it need to be welded in place or can it just slide on and off?

    What wall thickness should the bushing be?

    Thanks,

    Ron

  4. RDavidson

    Posted

    Leni, the tires look great! Ok, sounds like I need to look into getting the MC4 masters. What are you guys using for different brake pedals? What makes the originals not so good? If I need to change them I'd like to do it now while I still haven't Fiberglassed the boot cowls or riveted the firewall in place.

    Also Leni, I went big and bought a used O-360 for it, so I'm sure it will swing the larger prop. What brand prop makes the 81 or 82" you are talking about? I have a 78" ground adjustable Whirlwind prop that I use on another plane and I love it. I can only imagine wat another couple of prop inches will do! Probably leave the prop still and spin the airplane instead!

    Mike, I'm running 1/4" too. Is it brake pedal leverage that the original pedals are lacking?

    Randy, where did you mount your remote Resevoir? Thanks again for your gear leg dimensions! I am loving how the gear looks...minus my current wimpy tires!

    post-545-0-34783300-1397891304_thumb.jpg

    post-545-0-63668100-1397891418_thumb.jpgpost-545-0-00457100-1397891557_thumb.jpg

  9. allonsye

    Posted · Edited by allonsye

    Mark -

     

    What tail wheel setup do you have? Looks like a single leaf w/Matco wheel in the pic. An effective solution might be the Screaming Eagle TW. Pic of one on a sold in Barnstormers:

    http://www.flyboyaccessories.com/screaming-eagle-tailwheel-s/20.htm

     

    http://www.flyboyaccessories.com/screaming-eagle-tailwheel-s/20.htm

     

    I would contact these folks and consider this upgrade. This setup looks like it would nip that short coupled, challenging feeling on the ground.

     

    My ser # is 955. Looks just like yours.

  13. saskavid

    Posted

    Mike,

     

    What size brake lines do you run?  I had the 1/8" lines when I was using the MC1 masters.  Would it do me any good to run bigger lines?  I wouldnt think it would really make much difference, as pressure is pressure and once its compressed to XX PSI its not going to matter if I am running bigger lines or not.. but theory and reality sometimes butt heads and if the bigger lines sem to work better I could give it a try pretty quick.

     

    :BC:

    I'm running quarter inch Joey is running 1/8 inch doesn't seem to make much if any difference..If you look at a cross section of 1/8 vs 1/4 and do an area ratio of the material wall to the orfice the fluid passes thru then in theory the 1/8 inch should be much stronger or rigid than the 1/4.My test stand does have the quarter inch line attaching the mc to the guage and it still allows me to wrap the 600 psi guage.One thing I've noticed wen it is 50 as opposed to 90 above, mucheasier to make pressure at lower temp.rigidity of the line does play a part in performance with temperature. Provided you don't have any air left in the system after the swapout from wheels to skis, then you should be at 600+ psi. You can't feed a matco or most any ac brake bottom end any more.With oversize tires it is real easy to over heat things in continued panic/ hard stops and the friction coeffecient goes to hell because you've cooked all the resisns out of the pad. 

    1 person likes this

  19. SuberAvid

    Posted

    Ron,

     

    Those pictures of my plane are with the 30" Airstreaks.  I have the stock pedals on my plane but changed to the MC4 masters with remote reservior and redrilled the brake pedals to bring them in close to the pivot point.  I have the stock 1/8" plastic lines but switched to the triple puck matco calipers.  I can run my plane up without moving; not sure it it would move at full throttle.  I can taxi it with the tail up and I have to be a bit careful on landing so it doesn't do a nose plant.  You will probably want to change to the double puck Clevelands on your magnum eventually if you go with the 29's or 30's.  It is nice having adequate brakes.

     

    I would recomend the 29" ABW Airstreaks if your going to buy a new set; they are plenty big (probably cannot tell them from the old 30" Airstreaks Leni and I are running) and they are lighter than the regular ABW's like Chris said.

     

    Leni, those look pretty huge on your Avid!  How do you like them?  What did it do to your cruise speed?

  22. ChrisBolkan

    Posted

    When I said my 2 inch single puck Cleveland brakes would not stop my AWB 29's, it probably needs to be said that the entire brake system is stock Magnum as came from Avid at the time. I have done nothing to increase the mechanical advantage of the cylinders.