Putting the Brakes On

[Hot Frog]

Hello,

Any help on this would be appreciated.

I have the correct pedal (r/h side, 1932 Blue Star) and three pedal stops. I can see how all, save for the smallest, might work but am completely stumped.

[Steve.S]

I am not surprised you are confused. I don't know much about this particular model, so perhaps others with more knowledge can assist further.
Your photograph shows the brake pedal and stop plate (at right) for the ubiquitous Sloper model.
Your brake pedal should have 2 arms on it, 1 presumably for the brake rod, and the other for the return spring.
There is a pin in the inner face of the pedal, which engages with the pedal stop plate 27-6337. You also need pedal spindle 27-6336 which is bolted to the frame lug.
I have no idea what the other 2 parts in your photograph are, but I don't think they are used on your model with right hand pedal.
The return spring is just an ordinary expansion spring with ends at right angles.
You really need a Parts Book to identify these parts, but I will try to post photos when I work out how to do it, if this would be of any help?

[Greenfield]

These screen shots are from the 1932 parts book. Not an exploded diagram but hope it helps.

[Steve.S]

Well done, that man.
If you could post a screen shot of page 142/3, this will show Mr. Hot Frog what the other parts look like.

[Greenfield]

Pages 142 and 143

[Hot Frog]

Morning Gents,

Thank you so much for your helpful replies.

This explains a lot. If you hear screaming from the dírectíon of Devon, ít's me.

If any kind member could post a photo of the Blue Star r/h mechanism in situ that would be a great help.

Another bit for the parts bin!

[Steve.S]

I wonder if you have a lathe and welding facilities, or know someone who does, if you could make a fulcrum pin and adapt a lever from another motorcycle?
I imagine BSA hardened the pin, but perhaps you could use EN16 or 24? You could weld a 2nd arm to the pedal for the return spring, and maybe drill and tap the pedal boss for a grease nipple?
A lot of Blue Stars had a foot change gearbox, with the brake pedal on the left.
I swapped my 250 Blue Star brake pedal to the left, but unfortunately you need a cross shaft, which is a very rare item. This has a square on each end, and if you can get one, you're laughing, because you can then use a C10/11 brake pedal, shorten it, heat it and bend it to shape and weld the pad back on.
I found that BSA had very kindly fitted bronze bushes to the two frame lugs, and I just had to make up the spider lever for the other end from the picture in the Parts Book. It all works well.
It's just a question of whether you can get the correct pedal or the cross shaft. A C10 pedal is easy to obtain.
Just a thought.
"Yesterdays" have pictures of a 1932 hand change W32-7 Blue Star, but doesn't show the pedal very clearly.

[Hot Frog]

Morning Steve,

Thanks for the advice.

I did originally plan to find/fit/make a crossover shaft but the right hand lug is threaded , so I decided to stick with the right.

The search continues!

All the best,


Simon

[Steve.S]

I wonder if you have seen item 396528234843 on Ebay?
The Part No is correct for your machine, and it looks correct, although the seller says it's for a Sloper, which it's not.
Let us know how you get on.