Recommend me a dial indicator to check brake disc run out
Recommend me a dial indicator to check brake disc run out
Author
Discussion

Bennet

Original Poster:

2,133 posts

162 months

Monday 27th February 2023
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Hi there,

I'm getting brake judder and I want to check the brake disc run out on my MG ZT.

There are loads of dial indicators on amazon for between £20 and £40 but they seem worryingly cheap.



Any other recommendations for a keen but largely clueless home mechanic? Must come with a stand of some kind.

Thanks.


ssray

1,372 posts

256 months

Monday 27th February 2023
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They are pretty simple,so shouldn't cost too much.
Can you just tape a pencil to the upright?

TwinKam

3,572 posts

126 months

Monday 27th February 2023
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They will be fine for that level of work.

InitialDave

15,152 posts

150 months

Monday 27th February 2023
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TwinKam said:
They will be fine for that level of work.
This. Pretty much anything should do what you need

Bennet

Original Poster:

2,133 posts

162 months

Tuesday 28th February 2023
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Exactly what I was hoping to hear. Thanks.

ARHarh

4,892 posts

138 months

Tuesday 28th February 2023
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In my experience its not worth checking for run out. Spend your time checking sliding pins, (if it has them) or pistons move easily. Much more likely to be the brake disk too thin and over heating or a dragging brake and therefore over heating. Either way this can cause warping.

Captain Answer

1,376 posts

218 months

Wednesday 1st March 2023
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I use one of these RDG ones on my 3d printer to make sure its bed is tram with the nozzle...

https://www.ebay.co.uk/itm/354449110336?hash=item5...

LastPoster

3,248 posts

214 months

Wednesday 1st March 2023
quotequote all
I bought some second hand Starrett stuff off ebay for exactly the same purpose as you need. Worked fine and cost about £20 delivered