Re: '56 Brakes
Posted by John Payne On 2014/7/7 4:37:14
I always wondered what Lubriplate was and now I know. I also use a Bendix product but a modern version (see below). By the way, I should give and update about the woven linings. We went on a week long rune with 200 cars recently and on the downhill winding bits I was getting brake fade. I'm sure it was brake shoes as the fluid was pretty new Dot 4 and the master was full.
Anyway, after talking to a couple of brake specialists, one of them commented that on older cars like '57 Chev's they often use a woven lining as the primary and a moulded lining as the secondary. This got me thinking as I had read in the service manual that the factory used different compositions for the front linings. So, as I had two pair of front shoes, one woven and one moulded, both in pretty much new condition, I mixed them up with the wovens as primaries. I also fitted a new vacuum check valve just in case lack a vacuum was contributing to the hard braking, and all seems to working quite well. I still reckon the BTV has insufficient boost but there's very little I can do about that. I have spoken to Peter Packard and he has suggested that if vac pressure could be increased then that might overcome the problem. I haven't done anything about that idea yet. Cheers, John
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Anyway, after talking to a couple of brake specialists, one of them commented that on older cars like '57 Chev's they often use a woven lining as the primary and a moulded lining as the secondary. This got me thinking as I had read in the service manual that the factory used different compositions for the front linings. So, as I had two pair of front shoes, one woven and one moulded, both in pretty much new condition, I mixed them up with the wovens as primaries. I also fitted a new vacuum check valve just in case lack a vacuum was contributing to the hard braking, and all seems to working quite well. I still reckon the BTV has insufficient boost but there's very little I can do about that. I have spoken to Peter Packard and he has suggested that if vac pressure could be increased then that might overcome the problem. I haven't done anything about that idea yet. Cheers, John
Attach file:
(151.96 KB)
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