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Brake Drum Pads

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AcID ZeR0
Renault 5 Driver



Joined: 26 Sep 2004
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PostPosted: 17:00 - 03 Dec 2004    Post subject: Brake Drum Pads Reply with quote
How quickly do the brake drum pads wear down? I haven't had the scoot for long as I brought it second hand at 4021 miles on the clock, With full service history it's now done 4892 miles and the brake lever has to be pulled back quite far before any braking pressure is applied.
Is it normal from drum brakes to wear down quick? I'm aware I can adjust them and I know how to so it's not a real problem just wanted to check.
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mr jamez
World Chat Champion



Joined: 04 Aug 2003
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PostPosted: 17:22 - 03 Dec 2004    Post subject: Reply with quote
If you want drum brakes to be effective then you need to adjust them reguarly, you just need to turn the adjuster tappets, when you spin the wheel there should be contact between the shoes and drum rather than it spinning freely. There might be a cable adjustment as well? not sure have never fiddled with drums on a bike.

Also it doesn't hurt to clean all the dust out of them every once in a while Thumbs Up You can check the brake shoes by taking the drum off, if the studs on the shoes are above the braking matierial iteself then they need replacing, however it would make a horrible shrieking noise if this were the case. Also check that the shoes are not polished/glazed.
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Retro-Man
Traffic Copper



Joined: 21 Aug 2004
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PostPosted: 20:08 - 03 Dec 2004    Post subject: Reply with quote
most bikes with drum brakes have a wear indicator on the hub and an arrow on the hub lever to give and indication on wear.

When I had my old CG I was doing 40 miles a day and had to adjust the brakes at least once a month.

Cheers
Retro
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Kickstart
The Oracle



Joined: 04 Feb 2002
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PostPosted: 22:57 - 03 Dec 2004    Post subject: Reply with quote
Hi

The brake shoes last for ever, and they do need adjusting. Still I am surprised that a mere 800 miles makes that much difference.

Retro-Man wrote:
most bikes with drum brakes have a wear indicator on the hub and an arrow on the hub lever to give and indication on wear.


These can be moved to make the brakes appear better than they are so do not trust them that much.

All the best

Keith
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ZRX61
Victor Meldrew



Joined: 05 Nov 2003
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PostPosted: 02:35 - 04 Dec 2004    Post subject: Reply with quote
mr jamez wrote:
If you want drum brakes to be effective then you need to adjust them reguarly, you just need to turn the adjuster tappets,

adjuster tappets? WTF did you learn that name??? Rolling Eyes


mr jamez wrote:
when you spin the wheel there should be contact between the shoes and drum rather than it spinning freely.

Absolute & total bollocks! There should be NO contact between the shoe & the drum when you spin the wheel.
You adjust the brake so it JUST TOUCHES the drum & then back it off so it's not touching at all but there is barely any travel in the lever to make it touch the drum..
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mr jamez
World Chat Champion



Joined: 04 Aug 2003
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PostPosted: 20:56 - 04 Dec 2004    Post subject: Reply with quote
ZRX61 wrote:

adjuster tappets? WTF did you learn that name??? Rolling Eyes


Haynes manual Laughing


ZRX61 wrote:

There should be NO contact between the shoe & the drum when you spin the wheel.


The drums on my mini do not work if I do it like this, probably something wrong with them then Razz
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Retro-Man
Traffic Copper



Joined: 21 Aug 2004
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PostPosted: 11:17 - 05 Dec 2004    Post subject: Reply with quote
your mini brakes have to be adjusted just as you have said.
tighten the square drive all the way so that the brake is locked then back off 1/4 of a turn. this should leave you being able to feel contact between the drum and shoes without the wheel binding.


however bike drum brakes are slightly different in design and require backing off until there is no discernable contact and the wheel spins freely.

Hope this clears up the confusion
Cheers
Retro
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mr jamez
World Chat Champion



Joined: 04 Aug 2003
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PostPosted: 17:23 - 05 Dec 2004    Post subject: Reply with quote
Cool Thumbs Up at least I know they are ok then.
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pipnet11
Brolly Dolly



Joined: 17 Sep 2004
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PostPosted: 23:23 - 05 Dec 2004    Post subject: Reply with quote
Quote:
however bike drum brakes are slightly different in design and require backing off until there is no discernable contact and the wheel spins freely


Yup exactly right. Brake shoes tend to last bloody ages! My dads BMW has drums and has the same shoes as when it was bought new in 1972! Only about half way through their wear limits. It depends on how soft the pad material is though. at 4000 ish miles I wouldnt worry, theyve got at least another 10,000 in them Id say.
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