Humbug
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| posted on 11/2/05 at 09:38 AM |
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Brake pipe clips
I bought an ST rolling chassis with brake pipes already fitted. The pipes are p-clipped down the tunnel at c. 20cm intervals (so that's OK) but
they are regular metal p-clips, no rubber inserts. Will this be OK for SVA, or should I replae the clips with the other type?
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DarrenW
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| posted on 11/2/05 at 09:43 AM |
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I would assume that if thi sis the ST solution then they would have passed SVA like that. Problem is different testers interpretation.
Personally i would go for no metal to metal contact. Can you release the grip on the clips and put some spiral wrap around pipes at the clip location?
or some split rubber tubber? Saves replacing them.
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Humbug
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| posted on 11/2/05 at 11:48 AM |
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Brake pipe clips
I should have said - I bought it from someone else who had built it up to rolling chassis stage, not from ST.
I might try to put some extra insulation in.
Also, I noticed that at the back the pipes are cable-tied onto the back (live) axle - anyone know if that's a definite no-no? If it is, how best
to secure the pipes to the axle (it already has braided flexible pipes from the chassis to where it attaches to the axle)?
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richyo
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| posted on 11/2/05 at 11:57 AM |
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I'm cable tying brake pipes to rear axle with rubber tubing around brake pipe where cable ties are. I've seen a SVA passed car with this.
I also used the origional clips on the rear axle but there were only 2 on the axle so thought more fixings would help
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Snuggs
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| posted on 11/2/05 at 12:40 PM |
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If I were you I would use plastic or rubberlined metal P clips.
I'm not sure if SVA will accept cable ties and if it fails then replacing the ties with clips could be a real pain.
Cable ties CAN come unfastened, P clips can't.
Your choice !
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DarrenW
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| posted on 11/2/05 at 02:18 PM |
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The ties i'm using have passed SVA at Gosforth on my fathers MK. IIRC they are made by hellman, im told very high automotive quality ones. I
agree with snuggs - P clips are best but these clips should hold no problems.
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britishtrident
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| posted on 11/2/05 at 03:32 PM |
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The old factory Ford way used to be welded on tags on the body and axle to retain the pipes. The pipes were protected by rubber sleeves which fell
off after a couple of years. It didn't matter too much with steel pipes but if using copper ! or Kunnifer :-) brake pipes steel rubbing on a
softer metal ain't a good idea
The simple way to protect the pipe against chaffing slide on lengths of windscreen washer tube before finishing the last flair flairing.
For cliping pipes on the axle tube a couple of large jubilee clips work a treat, also self adhesive cable clips are very good for clipping brake
pipes.
Lucas/LSUK sell very nice white plastic brake pipe clips that simple push into a plain hole in a chassis section or body panel.
[Edited on 11/2/05 by britishtrident]
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britishtrident
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| posted on 11/2/05 at 03:41 PM |
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quote:
Originally posted by Snuggs
snip
Cable ties CAN come unfastened, P clips can't.
Your choice !
I would think P clips are more likely to slacken than cable ties.
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DarrenW
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| posted on 11/2/05 at 04:39 PM |
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I would stay away from self adhesive anythings. Especially cable tie bases if that is what you were referring to. Some testers may let them go but
Gosforth failed my Dads loom for being unsecure even though he used these with cable ties. The reason was that they can become old and inneffective
after being sudjected to heat, cold, moisture, fumes, etc etc and possibly fall off. Wiring could then contact moving or hot parts, bare the
insulation and cause short circuit or fire.
Some have hole in middle for a screw - if so then also screw them in place. The cable ties i have used have a mechanical clip that attaches through a
6mm hole in the chassis. P clips are just as efective IMHO. Bottom line go for mechanical fastening techniques (Gosforth also commented on the use of
insulating tape to tidy a loom saying that OEM's dont use it so they dont pass it!)
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