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| | | | Joined: Sep 2015 Posts: 78 'Bolter | | 'Bolter Joined: Sep 2015 Posts: 78 | 1950 3100 Chevy 1/2 ton
This should be pretty straight forward. However, I am unable to reinstall my right rear drum after installing new brake shoes. It's been many years since I replaced the shoes on this truck. The left side is on.
The left side went okay after adjusting the eccentric bolt. On the right side I can turn the eccentric bolt but I have not been able to free the lock nut from the bolt. I would like to free the nut but I am concerned about breaking off the bolt's slot tabs. When I turn the eccentric bolt the shoes move inwards and outwards as expected. Just not in enough. The wheel cylinder adjustment screws are adjusted to allow the retracting spring to pull the shoes inwards. The parking brake toggle lever assembly is reinstalled as I did on the left side. I did find that without adjusting the eccentric bolt on the left side the drum would not have slipped over the shoes. I have not disengaged the right-side parking brake cable. I have also used a rubber mallet to slightly orient the shoes vertical alignment to accept the drum. At this point I am unable to retract the new shoes enough to allow the drum to be installed..
I am perplexed and appreciate your experienced knowledge. I am hopeful that there is a logical solution that I am overlooking.
James in N VA | | | | | Joined: Dec 2013 Posts: 788 Former BMW Rider | | Former BMW Rider Joined: Dec 2013 Posts: 788 | Here's a link to the 1948-1951 Truck Shop Manual for your reference. If you're sure the adjusters are turned in, you might have to manually push the shoes inward to slightly compress the wheel cylinder. Be sure to place the drum on squarely over the brake shoes, otherwise it will bind on the brake shoes. It's a tight fit, but when everything is lined-up correctly it should slide over the brake shoes. Let us know how it goes...... | | | | | Joined: Feb 2004 Posts: 29,792 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,792 | How much interference is there? If it's pretty close, I'd suggest removing the shoes, glue a piece of coarse sandpaper to the inside of the drum, and scuff the linings into a perfect fit to the drums. That's a good idea on any Huck brake installation anyway, since they don't work well until the lining "wears in" to fit the drum exactly anyway. Use a water soluble glue like Elmer's white glue or even wallpaper paste to make removing the sandpaper with boiling water easier when you're done.
Jerry
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