Need a wheel for my F-19

[Carl Ellis]

Grrrrr ....

My shop screwed up when they adjusted my brakes. They seemed to have overtightened them, got them too hot during a test run and the drum on the left wheel warped.

Can the drum be turned? Failing that, I need a new wheel. I have Goodyear (??) not Shinn brakes. Does that matter for the wheel?

- Carl -

[Adamhere]

Hey Carl,
Adam here, current owner N19TE. John Pratt at MRI just noticed both drums are warped. Did you ever find a fix. Thanks 907three1zero6ninefour0

[Ragwing nut]

Hey Carl,
Adam here, current owner N19TE. John Pratt at MRI just noticed both drums are warped. Did you ever find a fix. Thanks 907three1zero6ninefour0

Talk about dragging a thread up from the grave. This one 16 years old! Doubt you will get response, he hasn't logged in for nearly 2 years. I don't know how you would fix one without replacing them

[PA1195]

If they are out of round would large hose clamps around the perimeter and heat from a torch around the contact area bring them back?

Gary

[Guest]

Hey Carl,
Adam here, current owner N19TE. John Pratt at MRI just noticed both drums are warped. Did you ever find a fix. Thanks 907three1zero6ninefour0

Are they Cleveland drum brakes?

[astjp2]

Hey Carl,
Adam here, current owner N19TE. John Pratt at MRI just noticed both drums are warped. Did you ever find a fix. Thanks 907three1zero6ninefour0

Good luck with John...I watched him allow an owner torque the AN bolts in a spar, then tell that individual that all the spars now need replaced....because the spars were crushed...

[Ragwing nut]

Are they Cleveland drum brakes?

thats what I thought. mechanical cleavelands. Same as on original PA-20's

[Guest]

One can easily fabricate new drums for these by taking one of the disc part numbers listed below and cutting off the rotor, trimming the width and truing up the I.D. on a lathe.

Take some measurements of width and wall thickness or I.D. from your old drum.

Swap the heat sink/hoop. It comes off if you push it towards the wheel.

I happen to have some of those new discs for sale on ebay.

164-00500 disc
164-10500 disc
164-00900 disc
164-10900 disc
164-01300 disc

[PA1195]

Is this possible? From the UNIVAIR Taylorcraft catalog pp. 20-21 (:

https://www.univair.com/tires-wheels...drum-assembly/ -or- https://www.univair.com/tires-wheels...drum-assembly/

Gary

[Guest]

Is this possible? From the UNIVAIR Taylorcraft catalog pp. 20-21 (:

https://www.univair.com/tires-wheels...drum-assembly/ -or- https://www.univair.com/tires-wheels...drum-assembly/

Gary

Yes, Cleveland has been pricing them that way for at least 5 or 6 years.

That is what prompted me to do the research on how one might fabricate a drum from Cleveland compatible components.

The thing is that years ago when they were about $2200 I called Cleveland about ordering one. The man was not able to figure out how to actually order it.

He was not able to find any evidence that they actually had made or were set up to make them at that time.

Aeronca landing gear being my business and they use these wheels and brakes so I researched what Cleveland disc numbers were used with the drum brake wheel numbers.

There is a DER who is willing you work out approved data if one desires that.

FYI apparently not just any Cleveland disc fits inside these wheels.

Dave R

[PA1195]

Amazing when a single brake component is worth that much. In the case of Post #2 what does "warped" imply? Are they typically out of round in their circumference or in-out offset from the backing plate? I'm familiar with disc brake rotors becoming warped to waffle shaped from overheat and heavy brake application when hot.

Can a warped component be remachined or taken to a brake shop for repair? Two discs from UNIVAIR and Grove brakes and wheels might be cheaper: http://dc65stc.blogspot.com/2016/06/...ve-wheels.html

This is a sad affair. N19TE was in Fairbanks for years and the former owner complained about the factory brakes but apparently never addressed the issue. Installing oversized approved tundra tires can work brakes beyond their limits and the Airframes Bushwheel STC calls out heavy duty brakes required for a reason.

Gary

[Guest]

Everything is worth whatever you can get for it.

I doubt that they have sold any at that price.

You can make them as I described or buy them from a fellow that makes them as I described and sells them for around $200.

[Guest]

Amazing when a single brake component is worth that much. In the case of Post #2 what does "warped" imply? Are they typically out of round in their circumference or in-out offset from the backing plate? I'm familiar with disc brake rotors becoming warped to waffle shaped from overheat and heavy brake application when hot.

Can a warped component be remachined or taken to a brake shop for repair? Two discs from UNIVAIR and Grove brakes and wheels might be cheaper: http://dc65stc.blogspot.com/2016/06/...ve-wheels.html

This is a sad affair. N19TE was in Fairbanks for years and the former owner complained about the factory brakes but apparently never addressed the issue. Installing oversized approved tundra tires can work brakes beyond their limits and the Airframes Bushwheel STC calls out heavy duty brakes required for a reason.

Gary

Gary,

Here's my best blind guess.

Look at the drums and I bet you discover that the hoops/heat-sinks are not installed thereby allowing the drums to expand.

Those drums have only about a .060" wall thickness.

Dave R.

p.s. will try to post a picture of the hoop/heat-sinks

[PA1195]

Hi Dave.....are hoops/heat sinks the rim items that appear to be discs for disc brakes? It would then seem your plan would be the best and cost effective. Could an external banding plus heat reform the drum? Or is it once deformed that's the end game?

Gary

[Guest]

Hi Dave.....are hoops/heat sinks the rim items that appear to be discs for disc brakes? It would then seem your plan would be the best and cost effective. Could an external banding plus heat reform the drum? Or is it once deformed that's the end game?

Gary

Yes, the hoops/heat-sinks are the items that appear to be in the same position as one would expect the rotor for disc brakes to be.

However the hoop/heat-sink is made of aluminum and is slid over/around the drum starting from the end of the drum with the bolt holes.

You would slide the hoop/heat-sink off of the old drum and install on the new. It's a light drive fit.

As I said you can buy the drum made from discs for about $200-$225 or buy the discs and make your own. I sell the disks for $85 on ebay.

If that drum is warped I don't think that I could get it back in shape and I bet I would charge as much or more than buying or making a "new" one.

Dave R