| MayanArch |
Posted
Wednesday, May 14th 3:00am [Edit] [Quote] [IMS] [View car] |
Member
Post nr. 1551
Florida, USA
Baur E21 2.7 1982, Baur E30 318i 1985, 323i 1978 |
I refurbished and repainted the old rear brake dust shields. I had to bang these things back into shape....but they never ended up perfectly flat again. Now they are giving me rubbing noises against the discs.....intermitently, as it seems they change shape as they get hot.
Do I need these things? Why did they put shields on to protect the inside of the rear subframe..........as they dont seem to help keep the brake dust off the wheels? |
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| melloh |
Posted
Thursday, May 15th 1:44pm [Edit] [Quote] [IMS] [View car] |
Member
Post nr. 663
California, USA (San Jose)
1980 320is, 1991 318is |
I always thought that at least one purpose was the other way around.. to keep stuff off the brakes!
It could also be that your rotors are heating and expanding enough to rub, too? If you can locate the site, then I guess hammering a bit more might do the trick. |
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| MayanArch |
Posted
Thursday, May 15th 7:11pm [Edit] [Quote] [IMS] [View car] |
Member
Post nr. 1553
Florida, USA
Baur E21 2.7 1982, Baur E30 318i 1985, 323i 1978 |
Yeah, that would make sense......more sense than my theory.
I got rid of the noise by bening it back once more. Hopefully it will stay that way. |
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| jdench |
Posted
Thursday, May 15th 9:04pm [Edit] [Quote] [IMS] [View car] |
Member
Post nr. 204
Sussex, UK
1979 E21 323i, 1998 E36 323i touring |
Mine looked like a bit of swiss cheese, so I binned them. I couldn't get hold of new ones, so I hope that they are not too important. |
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| BarryA |
Posted
Tuesday, May 20th 9:25pm [Edit] [Quote] [IMS] [View car] |
Member
Post nr. 219
Sacramento CA
81 320 |
On 323 rear discs, the dust shields also make up the backing plate for the parking/e-brakes - the retaining pins for the drum brake shoes attach through slotted hole in the backing plate.
It would probably be possible to cut away the part of the backing plate outboard of the e-brake shoes, but I'd think there'd be problems with the e-brake if the whole backing plate were deleted. |
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| MayanArch |
Posted
Wednesday, May 21st 9:02pm [Edit] [Quote] [IMS] [View car] |
Member
Post nr. 1561
Florida, USA
Baur E21 2.7 1982, Baur E30 318i 1985, 323i 1978 |
My trusty mechanic left an "extra" parking brake spring in there. That was the noise. 
And to think that I decided not to do my own brakes because I didnt want to be careless.
That aside, I he did a good job and I think doing your own brakes is suicidal. |
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| melloh |
Posted
Thursday, May 22nd 9:23pm [Edit] [Quote] [IMS] [View car] |
Member
Post nr. 667
California, USA (San Jose)
1980 320is, 1991 318is |
Good thing you found the source of your problem.
It's funny yo umention that, though... b/c doing my own brakes is like one of 3 things I actually can do on my own. |
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