oli
Apprentice
Posts: 1,065
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Post by oli on Sept 22, 2022 23:28:03 GMT 1
I bought a load of assorted brake pipe fittings in a bundle on Amazon to replenish my supplies and found some unions for joining brake pipe I’d never seen before.
I try to avoid joins in brake pipe by replacing whole pipes, but if I had to go pipe to pipe, I’d probably use a male and female union and flare the pipe ends with a bubble and SAE flare.
This kit featured a union like you’d use in water pipe plumbing, so no flaring to the brake pipe, but olives to deform and hold it in place.
I can see how they’d be more convenient in tight spaces or joining to steel lines which are harder to flare, but they would seem less secure to me if under tightened and at risk of crushing the pipe.
Have I just missed them before, or are they something frowned upon or even banned in the UK?
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Post by rhyds on Sept 23, 2022 7:35:32 GMT 1
I've seen some US/Canada based youtube channels that mention them as being a "bodge". Can't say I've seen them in the UK at all
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Post by Rhubarb on Sept 23, 2022 10:27:36 GMT 1
I bought a load of assorted brake pipe fittings in a bundle on Amazon to replenish my supplies and found some unions for joining brake pipe I’d never seen before. I try to avoid joins in brake pipe by replacing whole pipes, but if I had to go pipe to pipe, I’d probably use a male and female union and flare the pipe ends with a bubble and SAE flare. This kit featured a union like you’d use in water pipe plumbing, so no flaring to the brake pipe, but olives to deform and hold it in place. I can see how they’d be more convenient in tight spaces or joining to steel lines which are harder to flare, but they would seem less secure to me if under tightened and at risk of crushing the pipe. Have I just missed them before, or are they something frowned upon or even banned in the UK? Can you post a link to them or some pictures of them? They sound very dodgy to be honest. |
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Post by rhyds on Sept 23, 2022 11:47:50 GMT 1
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Post by upkeep on Sept 23, 2022 20:35:31 GMT 1
I would not use them and on your head be it.
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Post by studabear on Sept 23, 2022 21:53:39 GMT 1
They are a mot fail if they can be spotted.
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Post by studabear on Sept 23, 2022 21:55:16 GMT 1
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Post by valhalla on Sept 23, 2022 22:12:42 GMT 1
They are a mot fail if they can be spotted. My first thoughts when I viewed the post. Totally unacceptable, and not permitted in the context of a brake hydraulic circuit. This applies especially if it is within an ABS circuit, where pressures can pulse at high frequency and high pressure.
They are fine in the context of a clutch-line or fuel line, as the materials and pressures are quite different, although, latterly, brass olives are frowned-upon in gasoline fuel-lines, for chemical reasons.
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Post by OldGit on Sept 24, 2022 0:08:23 GMT 1
Now you mention it, I've not seen any brass in contact with fuel for a long time. Compression joints with ferrules are fine with a pipe that has a high compression strength and low consequential effect upon failure
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oli
Apprentice
Posts: 1,065
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Post by oli on Sept 24, 2022 7:32:05 GMT 1
Yes, those are the things. There were a few seemingly chucked in with what I would regard as normal male and female connectors. It seems everyone’s thoughts are the same as my initial ones. I wouldn’t be happy using them on a brake pipe. The potential for them either sliding out under pressure if the olive didn’t grip or crushing the soft relatively narrow pipe alarmed me. I didn’t think about fuel lines though. They might have been useful a few years ago when I plumbed in my Webasto diesel burning heater on the Land Rover. Though actually I’ve never found copper or even Kunifer difficult to route. I wonder if they’re used in the US where I understand they have to use steel, rather than copper brake lines? |
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Post by OldGit on Sept 24, 2022 9:09:29 GMT 1
Most OEM brake pipes are steel, which is why they corrode... I can't imagine the litigation-happy septics allowing them, now the Indians & Chinese... they're top of the world bodging leader board!.
Funnily enough, I did the same with the FBH on my Discovery after the original pipe sprung a leak.... about a year after the engine was replaced. 'Somehow' it had become unclipped and was rubbing on one of the metal charge air pipes.
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oli
Apprentice
Posts: 1,065
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Post by oli on Sept 25, 2022 21:05:01 GMT 1
Most OEM brake pipes are steel, which is why they corrode... I can't imagine the litigation-happy septics allowing them, now the Indians & Chinese... they're top of the world bodging leader board!.
I’m fairly certain these ones came from the Far East. Possibly a common fix there. I feel a bit guilty for not getting them from a local motor factors, but what used to be our good one has been taken over and is a bit lame now. You also end up queuing behind half wits and pi$$ takers - buying a single sidelight bulb then asking if they can have a pair of latex gloves and be shown how to change it themselves! Oli |
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Post by OldGit on Sept 25, 2022 22:43:19 GMT 1
Last time I went to a 'motor factors' it was full of eastern-europeans wanting to exchange the bits they bought the day before for the correct parts, taliban taxi-drivers wanting the cheapest parts they had, but with the non-existent 'taxi discount' and spotty oiks just wanting to discuss the options available for lowered suspension & hub spacers on their nan's VW Up! - without actually wanting to buy anything and with no regard to the queue building behind them....
That was 2019, it's probably the same now. I tend to buy from dealers, costs a bit more but they'll deliver to work and it's (usually) the right part with a parts & labour warranty.
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Post by Rhubarb on Sept 26, 2022 7:00:11 GMT 1
Most OEM brake pipes are steel, which is why they corrode... I can't imagine the litigation-happy septics allowing them, now the Indians & Chinese... they're top of the world bodging leader board!.
I’m fairly certain these ones came from the Far East. Possibly a common fix there. I feel a bit guilty for not getting them from a local motor factors, but what used to be our good one has been taken over and is a bit lame now. You also end up queuing behind half wits and pi$$ takers - buying a single sidelight bulb then asking if they can have a pair of latex gloves and be shown how to change it themselves! Oli Curious: What size are the olives? As in, do they fit the brake or fuel pipe? |
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oli
Apprentice
Posts: 1,065
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Post by oli on Sept 26, 2022 15:14:59 GMT 1
Last time I went to a 'motor factors' it was full of eastern-europeans wanting to exchange the bits they bought the day before for the correct parts, taliban taxi-drivers wanting the cheapest parts they had, but with the non-existent 'taxi discount' and spotty oiks just wanting to discuss the options available for lowered suspension & hub spacers on their nan's VW Up! - without actually wanting to buy anything and with no regard to the queue building behind them.... That was 2019, it's probably the same now. I tend to buy from dealers, costs a bit more but they'll deliver to work and it's (usually) the right part with a parts & labour warranty.
LOL - That sounds about right! |
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