Weak Brakes

[Austin Healer]

The early series 5 Alpines had self adjusting rear brakes but it didn't take long for them to figure out they were a pain so the self adjusters were dropped. I've been around Rootes cars since the 60's and in all of those years I have not heard a Tiger owner say anything about the use of self adjusting brakes. Were there any Tigers built that used the self adjusters? The wife has an Alpine that retains the self adjusting rear brakes instead of using early Alpine wheel cylinders and it has the 700 master and no booster. The brakes are fine for the use that it gets. My green car does have the early wheel cylinders as well as the 700 master and no booster.

No, no Tiger had the self adjusters... The last Tiger I took apart had .750 rear wheel cylinders. The TR4A used the same design, but .70 rear wheel cylinders

 

[michael-king]

The article about adjusting the pressure sounds interesting. Where can I find it?

https://www.catmbr.org/cat-forum/threads/brake-pedal-ratios.7959/#post-48141

"With standard Sunbeam peddles (4:1), I like a soft peddle and use a 3/4" master.

Some like a firmer peddle and use a bigger master size.
a 7/8" master size, with no booster, makes for a VERY Firm peddle.

With bigger diameter Brake rotors, the peddle pressure should be less, the same braking as a smaller Dia rotor.

Changing JUST the peddle ratio up, 4:1 to 6;1 will reduce the peddle pressure.


BTW, the Tom H MODTIGER 6:1 peddle moves the peddle down, lower than the Clutch peddle.

 

[michael-king]

No, no Tiger had the self adjusters... The last Tiger I took apart had .750 rear wheel cylinders. The TR4A used the same design, but .70 rear wheel cylinders

I was suggesting Marty check what he has on the rear. Perhaps someone could have mixed some cross series parts and hence things may not be working right

I was trying to find a clear photo of them for a quick ID check... It's a long shot...but stuff happens to the cars over 60 years... My Alpine had earlier Lockheed drums off another rootes vehicle when I got it