Can anybody advise on how to correctly secure the wiring in the cars. Does is need to be permanently fixed with P Clips. The reason I ask is I have these sticky pads that you can attach cable ties to. They are very strong, used to tie computer network cables. Took both arms to pull it off with pliers, when stuck to metal. To me these are free. Would they get through SVA or do they need to have secured by rivet to the chassis?? Thanks in advance.

if to the tester they appear to be permenant and suitable for purpose they will be fine. i do not know of anyone who has used them.

Bad news is they will fail because they are not considered permanent, stick a pop rivet in the middle and they will pass....
Tim

I used them with & without rivets OK. Even to fix some specific SVA fail points around the wiring for the rear lights. I thinklike many other things it's down to the individual tester. What one fails another will pass. SVA passed in Glasgow.

I had a box of them arrive from CPC today!
IIRC on Bob's test they asked if they were riveted as stuck on only would fail.

James

They are suitable for OEM Type approval so they should pass the SVA no problem. If you want, take a spare with you stuck to a scrap piece of ally and ask them to remove it if they believe it is not permanent.

I think that the problem is if they get wet or covered in petrol/oil/other fluids day in day out the sticky bit might give up and come loose. Might be OK inside or under the dash. I would go for "P" clips then no chance of a fail, and a lot easier to fit during build than after failed SVA test.

quote:

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Originally posted by simonH
if to the tester they appear to be permenant and suitable for purpose they will be fine. i do not know of anyone who has used them.

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Rescued attachment Plughead ties.JPG

You will find that they are oil/fuel/water proof. Manufacturers understand just what these clips are getting used for by the automotive companies.

Once again it is always possible to test one if you not sure. They only cost penny's - if the adhesive melts rivit them on, if not youve wasted 5p.

Thanks All. I will rivet where likely to get spoiled by fluids and just use adhesive on interiors.

my experiences of stick on tie bases in the electronics industry is that they invariably fail. I wouldnt specift them cos i think they are crap.

probably be better if you wanted to use them, to rivet them on. there are better platic thingies that push a spigot into a drilled hole for securing.

atb

steve

i forgot to pop rivet 2 sticky pads in my transmission tunnel and failed on it at newcastle a while ago

The official line from the SVA manual is:

NOTE 4: Items not normally employed for the
specific purpose by a major manufacturer should
not be considered acceptable. eg adhesive tape or
self adhesive pads are acceptable if used correctly
within the vehicle but are unlikely to be used by a
vehicle manufacturer on the underside of the
vehicle.
Consideration must be given to each individual
method and its compatibilty with the component
being attached and to the environment in which
it is fitted. Materials and methods used may be
accepted if they are permanent, durable and are
of a kind which would normally be used by a
major manufacturer.

James,

If people are suffering failure of these clips it is probably caused by one of the following.

1. Poor surface preperation ( Must be clean, degreased, smooth and flat)

2. Clip size too small for the weight if harness.

3. Cheap nasty parts - buy from a reputable supplier.

If you have quality parts it will have a good adhesive, one that is stronger than the foam backing pad. If you can get a clip back off without tearing the foam pad in half its probably down to one of the 3 faults above.

Well, when my car was up on the MOT inspector's ramp this morning I went under and had a nose around...
... several of the sticky tie-wrap pads I'd used had already come adrift, despite my efforts in de-greasing before use.

So my job for tomorrow is to remove the dash and tunnel cover and fit P-clips, ready for my SVA.

rgds,

David

anything wrong with cable ties? or are we talking about sticking them to panels rather than holding them to tubes?

Cable ties are fine - it's the sticky-backed plastic things that the ties go into that are the problem.

David