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Author Topic: Rusted rear brake drums  (Read 5876 times)

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Offline neweagle

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Rusted rear brake drums
« on: October 22, 2011, 02:16:53 PM »
Has anyone had to deal with rust frozen rear brake drums? I have an 82 sedan and have tried a 5lb sledge, heat on the drum, overnight liquid wrench soak. I have never been beat by a drum before. Any ideas or what worked for you fellow Eagle owners. Thanks.

Offline Jurjen

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Re: Rusted rear brake drums
« Reply #1 on: October 22, 2011, 02:26:06 PM »
Remove the three little screws, and keep hammering around.
You don't have to hamer it very hard, just keep up the good work for 15 minutes or so.
Hopefuly it will work its way of the hub.
"sparrows fly in flocks, eagles fly alone"

Eagle Wagon Limited 1983, Citroen C-Crosser 2010, Triumph Bonneville 1969, Yamaha XJR1300 1999, Yamaha TX750 1973

https://www.youtube.com/watch?v=Tf0jpiW6tRI

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Offline eagleman

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Re: Rusted rear brake drums
« Reply #2 on: October 22, 2011, 02:36:15 PM »
Had the same problem this week on my sons jeep! Just make sure the three screws are out like Jurgen said and keep tappin in with a hammer as you turn it. It should in time come off!
Turkeys walk.Eagles fly!!!

Offline captspillane

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Re: Rusted rear brake drums
« Reply #3 on: October 22, 2011, 02:43:16 PM »
The drums can form lip around the outside as they wear. That lip will not let the drum come off no matter how hard you beat at it until you loosen the brake adjuster. The brake adjuster is accessible through a hole in the backing plate. There is two rubber stoppers that should be in the two oval holes, but they are often missing. If you get one side off you can visually see how this adjuster is accessed and practice the motion before tackling the stuck side. The trick is to push one screwdriver against the plate that engages the notches to keep it from ratcheting closed, while at the same time using another screwdriver to push against the notches and slowly turn the brake adjuster. Once it is turned all the way the pads are able to pull closer together and disengage from the lip that formed in your brake drum. Its impossible to see what you're doing as you push two screwdrivers into the tiny oval, but its easy to feel when you've pushed on the spring plate and its easy to feel once you've found the notches.
Currently Inspected and Insured as of Jan 2013:
-1985 Eagle Station Wagon 258 T5 Stickshift
-1980 Eagle Station Wagon 258 Auto Fuel-injected with GM TBI

Minor Repairs Underway:
-1982 Eagle SX4 258 T5
-1981 Kammback 2.5L Iron Duke T5

Restoration Efforts Near Completion:
-1982 SX4- 401 NV3550
-1983 SX4- 4.5 MPI NSG370 (6 Speed)

Restoration Efforts Underway:
-1985 SW- 4.0 MPI AX15
-1982 SX4- 4.0 AW4
-1981 SX4- SD33T NV4500 (Turbodiesel 5 speed)

Future Rescue Efforts- '85 Maroon SW, '87 Limited SW, '84 Limited SW, '87 4 door Sedan, '81 2 door Sedan, '88 White SW, '77 4 door Hornet, '74 2 door Hornet, '79 Spirit AMX, '81 Kammback.

RIP- Red '81 SX4, '84 4dr Sedan, '84 SW, '81 SW, '80 Spirit, '83 SW, '83 4dr Sedan

Offline captspillane

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Re: Rusted rear brake drums
« Reply #4 on: October 22, 2011, 02:46:27 PM »
I stole this picture from Phil. At the bottom you can see the screw brake adjuster and the gold plate that pushes against it with spring pressure.

Currently Inspected and Insured as of Jan 2013:
-1985 Eagle Station Wagon 258 T5 Stickshift
-1980 Eagle Station Wagon 258 Auto Fuel-injected with GM TBI

Minor Repairs Underway:
-1982 Eagle SX4 258 T5
-1981 Kammback 2.5L Iron Duke T5

Restoration Efforts Near Completion:
-1982 SX4- 401 NV3550
-1983 SX4- 4.5 MPI NSG370 (6 Speed)

Restoration Efforts Underway:
-1985 SW- 4.0 MPI AX15
-1982 SX4- 4.0 AW4
-1981 SX4- SD33T NV4500 (Turbodiesel 5 speed)

Future Rescue Efforts- '85 Maroon SW, '87 Limited SW, '84 Limited SW, '87 4 door Sedan, '81 2 door Sedan, '88 White SW, '77 4 door Hornet, '74 2 door Hornet, '79 Spirit AMX, '81 Kammback.

RIP- Red '81 SX4, '84 4dr Sedan, '84 SW, '81 SW, '80 Spirit, '83 SW, '83 4dr Sedan

Offline neweagle

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Re: Rusted rear brake drums
« Reply #5 on: October 22, 2011, 03:03:38 PM »
Thanks, I'll give it another go round. Can a brake drum shatter from too much hammering?

Offline captspillane

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Re: Rusted rear brake drums
« Reply #6 on: October 22, 2011, 03:08:18 PM »
Your sledge handle will shatter long before the drum does. Just make sure to avoid hitting your threaded studs. Those can be popped out of position if you hit them hard enough.
Currently Inspected and Insured as of Jan 2013:
-1985 Eagle Station Wagon 258 T5 Stickshift
-1980 Eagle Station Wagon 258 Auto Fuel-injected with GM TBI

Minor Repairs Underway:
-1982 Eagle SX4 258 T5
-1981 Kammback 2.5L Iron Duke T5

Restoration Efforts Near Completion:
-1982 SX4- 401 NV3550
-1983 SX4- 4.5 MPI NSG370 (6 Speed)

Restoration Efforts Underway:
-1985 SW- 4.0 MPI AX15
-1982 SX4- 4.0 AW4
-1981 SX4- SD33T NV4500 (Turbodiesel 5 speed)

Future Rescue Efforts- '85 Maroon SW, '87 Limited SW, '84 Limited SW, '87 4 door Sedan, '81 2 door Sedan, '88 White SW, '77 4 door Hornet, '74 2 door Hornet, '79 Spirit AMX, '81 Kammback.

RIP- Red '81 SX4, '84 4dr Sedan, '84 SW, '81 SW, '80 Spirit, '83 SW, '83 4dr Sedan

Offline Jurjen

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Re: Rusted rear brake drums
« Reply #7 on: October 23, 2011, 05:40:21 AM »
And when they finally do come off, make sure to remove that edge with a course file or a dremel before putting them back on. It will make things much easier next time.

I found it helpfull to keep one of the brakes assembled, so that I could take a look at the other side during assembly.

This is a good time to give the e-brake cables a good lube job.
I hung them from the ceiling and used wd40 to get them going again and after that some normal engine oil until it came out of the bottom of the cable.
"sparrows fly in flocks, eagles fly alone"

Eagle Wagon Limited 1983, Citroen C-Crosser 2010, Triumph Bonneville 1969, Yamaha XJR1300 1999, Yamaha TX750 1973

https://www.youtube.com/watch?v=Tf0jpiW6tRI

Click for Leeuwarden, Netherlands Forecast" height="90" width="160

Offline carnuck

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Re: Rusted rear brake drums
« Reply #8 on: October 23, 2011, 11:22:58 AM »
I take a wire wheel to the hub before trying to remove the drum. Whacking it with the hammer needs to be done on the wheel face only and near (but not on) the outer edge.
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Re: Rusted rear brake drums
« Reply #9 on: November 04, 2011, 10:22:53 PM »
Any luck with one of these methods?  I released the brake adjustor to get mine off.

Offline BenM

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Re: Rusted rear brake drums
« Reply #10 on: November 05, 2011, 12:57:28 PM »
If you're having trouble with the adjuster, use a wire or screwdriver in the other rubber hole to hold it off the whee so you can spin in. Remember, one is left-hand and the other is right-hand.

They also make brake drum pullers, you may be able to borrow one from a chain store. You may have studs on the back with threads holding the drum on, clean them off well with a wire wheel regardless.
NSS#47184

1987 AMC Eagle Sedan -- 1976 Pacer Coupe -- 1968 Pontiac Tempest Custom S -- 1940 Mercury (& a 2002 Jetta Turbodiesel, 5 spd., the Wife's Daily Driver)

 

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