Author Topic: Rear brake spring  (Read 344 times)

Offline David Tinsley

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Rear brake spring
« on: 23.10. 2022 21:36 »
1955 GF

Hi,

Does anyone have a close up pic of the rear brake actuating lever and return spring?

The spring I got I am sure is the correct one (42-6046) but I cannot figure out how it is fitted. I have attached a few pics in the hope that someone might see what I am doing wrong.

Additionally, as i looked back through the parts list it seems I might be missing the rear brake outrigger strap 67-6046. Can anyone confirm?

Thanks in Advance
Dave

1955 A10 Golden Flash

Offline dave55

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Re: Rear brake spring
« Reply #1 on: 23.10. 2022 21:53 »
Hello on mine that spring is on the axle the pedal is fitted on with 1 hook around a bit on frame , and other hooked  on the pedal if that helps .
BSA Bantam D7 175  1961
BSA A10 650 Golden Flash 1955 Plunger
Suzuki GSX1400 2003

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Re: Rear brake spring
« Reply #2 on: 23.10. 2022 22:04 »
david tinsley yes you are missing the part , i will photo mine tomorrow and post it on here

Offline dave55

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Re: Rear brake spring
« Reply #3 on: 23.10. 2022 22:08 »
So mine could be in the wrong place then ?  *eek*
BSA Bantam D7 175  1961
BSA A10 650 Golden Flash 1955 Plunger
Suzuki GSX1400 2003

Offline David Tinsley

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Re: Rear brake spring
« Reply #4 on: 23.10. 2022 22:14 »
david tinsley yes you are missing the part , i will photo mine tomorrow and post it on here

Thank you I would appreciate that.

1955 A10 Golden Flash

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Re: Rear brake spring
« Reply #5 on: 24.10. 2022 00:16 »
G'day Dave.
The spring you have is the one go's on the pedal to frame.
According to Drags site the 55 s/a doesn't have on at the brake plate! https://tinyurl.com/y8prr67c
The first model to have the spring at the brake plate was the 1965 A50/65 p/n 41-6031 https://tinyurl.com/269rwdam
Cheers
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Offline David Tinsley

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Re: Rear brake spring
« Reply #6 on: 24.10. 2022 00:25 »
G'day Dave.
The spring you have is the one go's on the pedal to frame.
According to Drags site the 55 s/a doesn't have on at the brake plate! https://tinyurl.com/y8prr67c
The first model to have the spring at the brake plate was the 1965 A50/65 p/n 41-6031 https://tinyurl.com/269rwdam
Cheers

This is all getting confusing. I got the spring from Drags and talked to them over the phone before ordering. Looking at the link you sent, which is the same one I used, it does list 42-6046, but it is not illustrated. I assumed it was just left out of the drawing.
 The parts book does show the spring on the rear brake plate. I shall look tomorrow and see if the spring will fit on the pedal to frame fulcrum.

1955 A10 Golden Flash

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Re: Rear brake spring
« Reply #7 on: 24.10. 2022 01:51 »
G'day Dave.
I only have a later parts book that doesn't show it. I see yours does and Drags drawing is missing it.
That's why good homework is essential.
Cheers
'51 A7 plunger, '57 A7SS racer now a A10CR, '78 XT500, '83 CB1100F, 88 HD FXST, 2000 CBR929RR ex Honda Australia Superbike .
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Offline David Tinsley

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Re: Rear brake spring
« Reply #8 on: 24.10. 2022 01:59 »
G'day Dave.
I only have a later parts book that doesn't show it. I see yours does and Drags drawing is missing it.
That's why good homework is essential.
Cheers

It gets more and more confusing! Part of the "fun" I think! I will see if the spring I bought fits at the pedal end tomorrow and if works there I will leave it like that. The part # is called out on the Drags drawing, but the spring itself is not illustrated, possibly to keep the drawing uncluttered. I don't know, just a guess.

Thanks for the help.
Dave

1955 A10 Golden Flash

Offline Swarfcut

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Re: Rear brake spring
« Reply #9 on: 24.10. 2022 08:52 »
 Dave. The outrigger strap 67 6046 appears on the early S/A single sided rear wheel 1954/55. The return spring wraps round the brake plate cam spigot and acts against the strap and the brake lever. Looks like the set up you have there. My parts catalogue shows  67 6046  as the strap, and curiously 42 6046 as the spring. Page 52, 1954-'57 Edition. 42 Series parts generally apply to S/A Models, tho' earlier parts carried over still use the 67 prefix.  The catalogue lists the spring as 42 6046, which makes the spring part number designation correct. Whether your purchase is actually a spring that fits is a different matter....

 So good luck with sorting that one out!!!

 Swarfy.

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Re: Rear brake spring
« Reply #10 on: 24.10. 2022 10:23 »
here you are David Tinsley mine is 1955 and it looks like you have the wrong brake arm as well , mine has been extended but correct shape at the top

Offline David Tinsley

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Re: Rear brake spring
« Reply #11 on: 24.10. 2022 13:22 »
Dave. The outrigger strap 67 6046 appears on the early S/A single sided rear wheel 1954/55. The return spring wraps round the brake plate cam spigot and acts against the strap and the brake lever. Looks like the set up you have there. My parts catalogue has a typo error,  67 6046 is shown as the strap, and the spring. Page 52, 1954-'57 Edition. 42 Series parts generally apply to S/A Models, tho' earlier parts carried over still use the 67 prefix. My guess is the catalogue should list the spring as 42 6046, which makes the spring part number designation correct. Whether your purchase is actually a spring that fits is a different matter....

 So good luck with sorting that one out!!!

 Swarfy.

Thanks Swarfy,

Things are a bit clearer now with the pics and your explanation. I will order the strap and see how it goes then. At least it all makes sense now.
Cheers
Dave

1955 A10 Golden Flash

Offline David Tinsley

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Re: Rear brake spring
« Reply #12 on: 24.10. 2022 13:24 »
here you are David Tinsley mine is 1955 and it looks like you have the wrong brake arm as well , mine has been extended but correct shape at the top

Thanks very much for the pics. It is all clear now. I am going to order the strap and see how things go. Looks like I will also have to investigate the brake arm as well.
Cheers,
Dave

1955 A10 Golden Flash

Offline dave55

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Re: Rear brake spring
« Reply #13 on: 24.10. 2022 13:43 »
And this is the spring fitted to the pedal on my bike
BSA Bantam D7 175  1961
BSA A10 650 Golden Flash 1955 Plunger
Suzuki GSX1400 2003

Offline morris

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Re: Rear brake spring
« Reply #14 on: 25.10. 2022 15:27 »
And this is the spring fitted to the pedal on my bike
That’s ok for the cable operated right hand side brake
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