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How to tell if drums are worn out?

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Chewy Fahrvergnugen

889 posts · joined Jul 2004 ·

#278228
How can I tell if my drums need replacing?
There doesnt seem to be a ridge on the outside edge of the drum where the pads dont contact but there is on the inside.
Would the inside ridge just be part of the casting?
I dont have the tools to measure the I.D. of the drum.

Thanks
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Chewy Fahrvergnugen

889 posts · joined Jul 2004 ·

#278229
wooo 200 posts :thumb
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vw54 Administrator Always Waiting 4 Friday

16,723 posts · joined Aug 2002 ·

#278323
When you remove teh drum theres a small 45 degree champher on the out side of the brake area. If this still looks all intact then there not worn or have not been machined before.
I read it on FACEBOOK so it must be true


http://forums.aussieveedubbers.com/viewtopic.php?tid=91278&page=1#pid848630


http://forums.aussieveedubbers.com/viewtopic.php?tid=63561&page=1#pid624099


http://forums.aussieveedubbers.com/viewtopic.php?tid=4832&page=1#pid452603


http://forums.aussieveedubbers.com/viewtopic.php?tid=60650&page=1#pid574409

68AutoBug Beetle Restorer - Experience over 138\% - YIKES --

11,654 posts · joined Aug 2002 ·

#278334
They sound OK...
Mostly Brake drums are wrecked by Worn Out Brake Shoes..
where the steel shoe makes contact wiith the brake drum and there are grooves everywhere....

I don't think they normally wear out as the Brake pads are softer than the brake drum itself....

If they are grooved, I think You can have them machined once... depending on how deep the grooves are...

Lee
- Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY---

Chewy Fahrvergnugen

889 posts · joined Jul 2004 ·

#278615
So there is no maximum wear limit like on disc rotors?
They do eventually wear due to the abrasive properties of the brake pads, no groves tho so I'll give em a go.
thanks
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vw54 Administrator Always Waiting 4 Friday

16,723 posts · joined Aug 2002 ·

#278695
yes there is a maximum wear limit... if the champher is gone then yr brake drum is worn out.
I read it on FACEBOOK so it must be true


http://forums.aussieveedubbers.com/viewtopic.php?tid=91278&page=1#pid848630


http://forums.aussieveedubbers.com/viewtopic.php?tid=63561&page=1#pid624099


http://forums.aussieveedubbers.com/viewtopic.php?tid=4832&page=1#pid452603


http://forums.aussieveedubbers.com/viewtopic.php?tid=60650&page=1#pid574409

type82e Wolfsburg Wizard

591 posts · joined Aug 2002 ·

#279482
to be sure just take them to a brake place they'll be able to tell you if theyre ok I just had some done for my country buggy rear end and they had to put oversize shoes in it but theyt were within the wear limit
marcel