Joined: Mar 2018 Posts: 681 Threads: 32
Reputation:
3
Location: Lot region FRANCE
Simple question, does the efficiency of brake shoes deteriorate over time. I bought new linings in 1978 - yes, 1978, but the car was not on the roads until 1999. The shoes have only done about 10,000 miles and are dry (Not contaminated) and have plenty of wear left in them, but would new shoes improve braking ??
Anyone out there have an opinion on this?
Bob Humphrey (1932 RN saloon in SW France)
Joined: Aug 2017 Posts: 313 Threads: 9
Reputation:
6
Location: TINOPAI NZ
HI Bob, Simple answer no, If the wear is even just scuff the lining with a wire brush and readjust as you have no contamination.
Cheers Colin
Joined: Aug 2017 Posts: 34 Threads: 4
Reputation:
0
Hi Bob, are you the same Bob who used to live in Addlestone, with a wife called Georgie ?
Joined: Aug 2017 Posts: 2,274 Threads: 33
Reputation:
35
Location: Deepest Frogland 30960
Car type: 1933 RP Standard Saloon
Hi Bob
I have found that the later type of lining material (woven) is better than the earlier resin based materials. They're available from our usual sources.
Bruce.
Joined: Aug 2017 Posts: 1,230 Threads: 33
Reputation:
6
Location: Salop
Car type: '28 GE Cup. '28 AD Chummy '30 RL Saloon. '34 RP Saloon. Too Many toys!
Reckless, there not better enough to warrent re-lign a whole car with perfectly serviceable linings already fitted!
Joined: Aug 2017 Posts: 3,235 Threads: 101
Reputation:
27
Location: Darkest Bedfordshire
Friction material manufacturers keep their formulations a closely-guarded secret so it's hard to give a generic and definitive answer to this question. I'd cast an eye over them and discard in the event that they show obvious signs of deterioration such as cracking or crumbling. For normal A7 type use I imagine they'd be fine, if they are clean and oil-free. Replacing bedded with unbedded linings is a clear step backwards.
Joined: Aug 2017 Posts: 114 Threads: 8
Reputation:
6
Location: NE England
Hi,
I changed out my Girling linings last year. They were on the car when I got it and dated from the 50/60's - the part number was still on the friction face so were newly installed then and I saw no reason to renew them even though they were undoubtedly woven asbestos. But they worked very well. Once down to the rivets I had a new set bonded on, of some admittedly unknown material and friction properties. They stop OK but if I was being a pedant maybe just not quite as well as the originals. It's your call but if they work OK and still have some thickness left; for the mileage most of us cover I'd suggest you stick with them and have another check in the future.
Dave
Joined: Jan 2018 Posts: 107 Threads: 12
Reputation:
0
20 years ago - but when building a special to race - I was recommended a supplier of linings to the vintage motorbike racers with a lining with a very high wear rate but "superior performance". Not sure if that was stopping power or ability to cope with higher temperatures without fading.
Are there choices out there for Austin 7 linings?