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Author Topic: Flaminia stuck rear brakes  (Read 173 times)
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frankxhv773t
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« on: 14 September, 2020, 05:34:24 PM »

I would welcome any advice on unjamming a rear calliper on a Flaminia. So far I have got both front and one rear freed up by the usual method of tapping with a hammer and turning the wheel along with cleaning surface rust off the discs.

The car is in neutral and the hand brake is off and one side is turning freely so I am pretty sure it is just the calliper binding. Unfortunately my workshop manual only covers drum brakes in detail. Access is very restricted even with the panel in the boot floor removed so any help will be greatly appreciated. I don't even have the instructions for removing the brake pads.

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frankxhv773t
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« Reply #1 on: 14 September, 2020, 06:05:56 PM »

I might add the car was pushed into its present position a few years ago and the brakes have never been applied since, it has been up on axle stands, but the clearance between the discs and the pads is almost non existent so surface rust is enough to jam the brakes.
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Richard Fridd
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« Reply #2 on: 15 September, 2020, 06:52:51 AM »

The panel in the floor could be enlarged I expect. I can look at my manual for information. I expect the piston assemblies need removal and servicing. I know it is a tight working space. Richard
« Last Edit: 16 September, 2020, 05:47:14 AM by Richard Fridd » Logged

Richard Nevison Fridd
frankxhv773t
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« Reply #3 on: 15 September, 2020, 09:44:19 AM »

Thanks Richard, I feared as much. An exploded diagram would help in seeing what I am dealing with.
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Dave Gee
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Posts: 121


« Reply #4 on: 15 September, 2020, 10:16:54 AM »

Richard
The Dunlop braking system, when its set up, is very good, so this is well worth persisting with. Unfortunately, because they have stood so long, I would recommend rebuilding your calipers to ensure all the recently acquired rust is removed. Be careful when you take it out because there are some very thin spacing washers between the caliper and the bracket, which are used to centralise the caliper, and which can be easily lost.

To remove the rear calipers this can all be done through the hatch in the boot of the car. You need a 17mm socket which I can lend. This has been customised so that it is easy to get onto the 2 hexagonal bolts when you have bent the tab washer back. When you then disconnect the brake pipe you can lift everything out and strip it down and rebuild on the bench.

While the system is apart, I would recommend replacing the 3 rubber flexible brake pipes.

Rebuilding the whole system is then simply a reverse of taking it apart. Any problems, ring me.
Dave Gee
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frankxhv773t
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« Reply #5 on: 15 September, 2020, 11:59:47 AM »

Thanks for the response Dave. At present I am just need to move the car so major brake work is not the order of the day. It is kind of you to offer the loan of your socket but is there a chance you could post details of your modification as I am sure I have a spare socket that can be similarly modified and also am likely to need one on an ongoing basis.
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Richard Fridd
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« Reply #6 on: 15 September, 2020, 04:45:28 PM »

Diagram emailed to you Frank
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Richard Nevison Fridd
Dave Gee
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Posts: 121


« Reply #7 on: 15 September, 2020, 08:31:03 PM »

Richard
It's a 17mm 3/8"drive socket, and the height of the socket has been machined down to 17mm.
Dave
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Jay
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« Reply #8 on: 15 September, 2020, 09:17:33 PM »

Flaminia inboard rear calipers are a real pain to work on, especially with man hands, you may have to sacrifice the pads to get the wheel turning 
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Julian Wood, Kingston, London
frankxhv773t
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« Reply #9 on: 16 September, 2020, 09:08:34 AM »

Thanks to all for the various help. I think I have a handle on the problem now.
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