Help with rocky mnt brakes

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Model T Ford Forum: Forum 2017: Help with rocky mnt brakes
Top of pagePrevious messageNext messageBottom of page Link to this message  By Rick Ross-Maysville, KY on Sunday, August 06, 2017 - 08:01 am:

After installing the Rocky Mountain brakes on one side. I cannot adjust them to eliminate rubbing on the hub. I have to physically move the wheel and when I stop applying force, the rubbing is enough to stop the wheel immediately.

The emergency brake did the same until I sanded the lining significantly. I have tried four different hubs and they all rub. The previous owner had the rockys on without the emergency brake installed. I don't think he ever drove it after he sloppily put it back together (his father in law had it in pieces).

Will the linings wear in or is something else going on? I feel like I'm never going to get this thing on the road!


Top of pagePrevious messageNext messageBottom of page Link to this message  By Norman T. Kling on Sunday, August 06, 2017 - 11:15 am:

I don't quite understand what you mean by "rubbing on the hub". Do you mean the hub is rubbing inside the brake drum or do you mean the rocky Mtn lining is rubbing on the outside of the drum. You say the previous owner had it installed without the emergency brake. Did it rub before you worked on it?

Here is what I have found out from previous experiences. When I install the rocky mountain drum on the hub, then inside that drum I install the emergency brake drum. That will move the e-brake drum closer to the backing plate because the hub is still in the same place on the axle. I will then need to install tapered shims on the end of the axle shaft between the shaft and the hub. That shim pushes the e-brake away from the backing plate which will be back like it was before the rocky drum was installed. The e-brake will then fit without rubbing the outside edge against the drum. If you are installing new lined e-brakes you might need to do some grinding to make everything fit. The rocky mtn brake band should not drag when it is loose unless the band is out of round. It should be adjusted so that the wheel will spin freely and then after that you adjust the rods for the proper fit when the parking brake lever is applied. Lastly adjust the link between the brake pedal and the shaft.

Hope this helps.
Norm


Top of pagePrevious messageNext messageBottom of page Link to this message  By Rick Ross-Maysville, KY on Sunday, August 06, 2017 - 12:20 pm:

The brake lining of the RM is rubbing the outside of the drum. The ebrake lining took quite a bit of sanding and it still rubs a tiny bit. The rocky lining may not be round. I guess I will need someone smarter to me to look at it. I think the backing plate is clear but I will check. Thank u


Top of pagePrevious messageNext messageBottom of page Link to this message  By Don Lyon, PDX, OR. on Sunday, August 06, 2017 - 06:14 pm:

When I installed my ACs I had to lay the drum flat and lay the brake bands around the drum and then bend them to fit. They were not round and this caused the bands to rub in several places. Make SURE you're bands are round. Don.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Rick Ross-Maysville, KY on Sunday, August 06, 2017 - 08:22 pm:

Thank you Norm and Don. I think I need to shim the axle and also bend the brake bands. I'll be ordering from langs tomorrow.


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