djaques
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| posted on 11/4/11 at 12:35 PM |
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Aluminium brackets for brake flexis
I'm confused... Are aluminium brackets for brake flexis an automatic IVA fail? Or does it just depend on the tester? Has anyone passed IVA with
aluminium brackets to support the flexis?
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Mr Whippy
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| posted on 11/4/11 at 12:45 PM |
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why even go that route as they will just fatigue? Do the best you can with the brake system, there is no other as important
Fame is when your old car is plastered all over the internet
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Bluemoon
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| posted on 11/4/11 at 01:19 PM |
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quote:
Originally posted by Mr Whippy
why even go that route as they will just fatigue? Do the best you can with the brake system, there is no other as important
Have to agree, I do have some Ali brackets on mine (passed SVA) but it's probably not recommended... Also the front hoses are mounted on the
ally bodywork.. Of course the IVA might be different and this arrangement might fail.
Cheers
Dan
[Edited on 11/4/11 by Bluemoon]
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matt_gsxr
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| posted on 11/4/11 at 01:58 PM |
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quote:
Originally posted by Mr Whippy
Do the best you can with the brake system, there is no other as important
what about the bolts that hold the wheels on, or the steering?
I do agree with the sentiment though
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Miks15
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| posted on 11/4/11 at 02:06 PM |
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why are you not recomending ali brackets?
I have some ali angle rivetted to my chassis which the flexi and copper pipe meet to hold it firm. Is this not recomended then?
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blakep82
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| posted on 11/4/11 at 02:18 PM |
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quote:
Originally posted by Miks15
why are you not recomending ali brackets?
I have some ali angle rivetted to my chassis which the flexi and copper pipe meet to hold it firm. Is this not recomended then?
ali is more likely to work harden and break than steel is. thats all. i don't think ali would fail IVA though.
________________________
IVA manual link http://www.businesslink.gov.uk/bdotg/action/detail?type=RESOURCES&itemId=1081997083
don't write OT on a new thread title, you're creating the topic, everything you write is very much ON topic!
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Irony
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| posted on 11/4/11 at 02:43 PM |
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I have a few Aluminium brackets on my car (not on the road yet) and the robustness of them does worry me slightly. One of the Ali brackets I have
holds the Cooling fan on (several ali brackets in fact). While the Ali worries be slightly its got to be better than the 'cable ties' the
fan supplier supplied me with.
Also my alternator is held on by a cast ally bracket as supplied by Rover. So that must be okay. Common sense needed
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britishtrident
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| posted on 11/4/11 at 02:45 PM |
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Aluminium alloy even if lightly loaded always have a finite fatigue life.
Steel as a general steel provided the load and amplitude of load reversals is kept within sensible limits can be regarded as having an infinite
fatigue life.
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Mr Whippy
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| posted on 11/4/11 at 03:57 PM |
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quote:
Originally posted by matt_gsxr
quote:
Originally posted by Mr Whippy
Do the best you can with the brake system, there is no other as important
what about the bolts that hold the wheels on, or the steering?
I do agree with the sentiment though
hopefully if your wheels fell off or the steering broke you'd like to still be able to stop 
a bracket for the brake pipe is going to be flexed every time you turn the steering wheel or go over a bump, just the worst thing you could have
alluminium doing.
Fame is when your old car is plastered all over the internet
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djaques
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| posted on 11/4/11 at 07:53 PM |
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Thanks for your replies. I know from pictures on the site that lots of people have used aluminium for the flexi brackets. I understand the fatigue
problems, and that steel is the way to go to be certain. I just wondered if anyone had failed the IVA because the tester had judged that aluminium
brackets were not adequate.
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