I am installing a set of band linings in my friends 26 roadster. The band linings came with the car when he got it and look pretty old. I searched the forum and read several threads, also reviewing photo's. None of the photo's look like the Kevlar band linings I have here which have two different materials on opposite sides. One side looks like the Kevlar I've seen in the photo's but the other side looks like a felt material.
Even more troubling, someone also wrote "drum side" on the side that appears to be a felt material of some sort.
Are these bands indeed Kevlar? If so, which side goes against the spinning drums? Thanks!
They don't look like the kevlar band I have. Mine were yellow and the same color and consistency throughout their thickness. They look like some sort of cotton weave.
I think these are the first version of Kevlar band linings. If I recall correctly, these bands came apart and messed up everything. I would not use them.
There were 3 kinds that came out about the same time.
This one that didn't look good to me as the Kevlar was to thin and they put a filler strip of something to make it thicker.
Then there was the one that came in a can. It was about the right thickness, but was to narrow and was not as wide as the steel band.
And the 3rd kind that we are using now.
As Jim said, don't use it.
Ok guys.... advice taken... They won't be used. Thanks for the inputs.
Good decision. I remember those. I never had a set, but heard a lot of bad reports.
Drive carefully, and enjoy, W2
Based on my experience with Kevlar bands over the years, these are the early style of Kevlar bands. The Bands are marked correctly in that the darker material is the Kevlar side and it goes against the drum. The lighter woven material was Nylon at first and was then changed to Cotton at some point. These were bonded to the Kevlar to build it up the thickness of a conventional cotton band.
If these are the Nylon backed Kevlar bands, they are bad news! Don't use them. The problem with them was that if you overheated the band, the Nylon backing would melt right out. Then the Nylon would harden again and damage the engine like throwing a hand full of sand and grit in the oil.
If they have the Cotton backing, they would be fine as long as you counter sink the rivets and use them on drums that are not badly grooved. The Kevlar material is harder than the current woven style and will not conform as well to a grooved drum. I think we still have at least one of the Cotton backed sets in one of my fathers T's.
To find out which one you have, take a lit match or lighter to the backing at one end. If it melts as it burns, it is Nylon. If it barely burns and turns to ash, it is Cotton.
Hope this is helpful.
Tod has it in one.
The cotton backed ones are very good and I ran them for thousands of miles over 15 years before they wore out. Only thing to note is wether the cotton backing begins to separate after that time...
I wish I could still get them, as I believe, unlike any woven band they don't create lint to block up your oil line.
100% solid kevlar would be the best!
They look like bands sold by the Custom Friction Company. The cotton backed ones were good. You have to be very careful countersinking the rivet heads into the material. It is easy to go too far and hit the cotton lining.
Otherwise they perform really well.
Allan from down under.