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1957 T110 Front brake

3K views 9 replies 5 participants last post by  Perce 
#1 ·
Does anyone have any ideas on improving the SLS 8" front brake on a early preunit T110?
 
#2 ·
Often,the quality of the cable will improve any cable brake.I have one fitted to my T120r which is much thicker wire and outer sheath so less force is taken by stretching.Other than that,i know nothing about that brake.My single leading shoe brake on the BSA works very well though.
 
#3 ·
Check brake lever is correct type for the T110. Measure the distance between the pivot screw centre and nipple centre, should be 7/8 of an inch.

Fit the best shoe linings.

Check drum for ovality, re grind if req'd.

Source a Venhill low friction cable.

The brake operating arm can be extended by an extension plate or complete longer arm fabricated.

Check that the leading & trailing shoes haven't been reversed. Section F 6 figure F 6 Triumph Service manual.

Check shoes for full contact.

When adjusting, loosen the fulcrum pin nut & apply brake hard then tighten nut.
 
#5 ·
Thanks for the prompt replies, I'll be going for some good linings, a good cable, a modified hub lever and all the advice that Rambo & Rev have posted. I'd like to keep the original front wheel catweazel so a TLS is not an option at the moment. Not many people know Moranbah do you go there often? Where are you?

With thanks Perce
 
#7 ·
I have done up a few brakes like this, it requires a large lathe. First turn the drum with it laced to the rim. Lacing a wheel can distort the brake drum as can age and use. Get thicker linings installed on the shoes. Make sure the cam pivot bushing is a good fit and all springs etc are in good shape.

Then assemble the backing plate, using .020" shims between the cam and shoes. Measure the trued up drum dia and turn the shoes to that dia. When the shims are removed the Brake plate will fit and when the cam is actuated the shoes will fit the drum exactely.

You must talk over with the brake shoe relining company what type of material to use, this will depend on the use you have in mind such as racing or street use.

If you do this along with a good cable , lever setup as previously suggested it will make a very noticeable improvement. It does require access to a large lathe and when you are done its still a SLS front brake.
 
#9 ·
Sorry I cant really tell you, I used a brake relining shop and explained to them that I wanted a thicker lining for street use and he picked one out and relined my shoes. You need thicker lining so they can be turned down. I also informed him that it was a cable operated brake etc and he used all that information to choose a lining material to suit.
The shop was a specialist for brake shoes for old cars, bikes etc and the owner was well versed. He has since retired.
I see you are in Australia I'm sure there is somebody there that does this kind of work.
 
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