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Nuevo ES 2004 Strange Pipe

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steamdrivenandy
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Post by AlanCope Fri 12 Jun 2020 - 13:30

I was under my van the otherday and I noticed a ZigZag metal pipe. With every intention to trace it next day, but it has rained ever since, so I thought I would ask the huge knowledge base on here if anyone knows what it is?, The vehichle is a Peugeot Boxer 2.2 Hdi. No Aircon. if this helps

Thanks in advance
Al

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Nuevo ES 2004 Strange Pipe Empty Re: Nuevo ES 2004 Strange Pipe

Post by modelman Fri 12 Jun 2020 - 17:03

Brake pipe?

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Nuevo ES 2004 Strange Pipe Empty Re: Nuevo ES 2004 Strange Pipe

Post by AlanCope Fri 12 Jun 2020 - 20:16

I don't think so it runs back a forth in zigzag fashion by the fuel tank like (crap Drawing) Below
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Nuevo ES 2004 Strange Pipe Empty Re: Nuevo ES 2004 Strange Pipe

Post by Roopert Fri 12 Jun 2020 - 20:32

Fuel cooler?
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Post by glyne lock Fri 12 Jun 2020 - 23:30

Modelman
you could be right it could be to make the front brake pipes the same length or a vent pipe from fuel tank
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Nuevo ES 2004 Strange Pipe Empty Re: Nuevo ES 2004 Strange Pipe

Post by modelman Sat 13 Jun 2020 - 8:02

I can't begin to imagine what that is, when you said zig-zag, I assumed a dog-leg!
Where about is it, front, back?  Can you trace it where from & where to?  Diameter, steel, copper etc.

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Post by steamdrivenandy Sat 13 Jun 2020 - 9:06

I suppose it could have some bends in it to stop some sort of harmonic vibration producing noise, but a straight pipe clipped somewhere would do that and be cheaper. You'd think that the bends and extra material involved would have either a structural or a process reason for being there.
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Post by AlanCope Sat 13 Jun 2020 - 9:33

If it stays dry, I'll get under and Photograph it, and try and trace it. Thanks for all the idea's

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Post by steamdrivenandy Sat 13 Jun 2020 - 9:39

A thought.

Has your van got any additional gauges on the dashboard anywhere, only sometimes such gauges come with a length of tubing and a normal DIYer wouldn't have the equipment necessary to shorten and re-make the connection at either of the ends. So the only option is to 'concertina' the extra length up somewhere in the middle of the run.
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Nuevo ES 2004 Strange Pipe Empty Re: Nuevo ES 2004 Strange Pipe

Post by AlanCope Sat 13 Jun 2020 - 9:43

No extra's as far as I can see, and this looks professionally fitted, Like I said I'll try and photograph it and trace it.

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Post by AlanCope Sat 13 Jun 2020 - 10:43

Well here are the pictures, can't see where the pipe turns up under the bonnet without dismantling[You must be registered and logged in to see this link.] stuff, so looks like I will have to ask the garage at next service

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Post by steamdrivenandy Sat 13 Jun 2020 - 11:07

Bigger piping than I imagined.

It has to be either oil or water, too big for brakes. But why would oil or water be sent on such a convoluted route there and back again. Cooling doesn't make sense as the water has a radiator for that and such piping gives very little cooling effect anyway. It might be part of an EGR system, but why so long?
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Post by Mrgeoffrey Sat 13 Jun 2020 - 11:23

Do you have aircon?
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Post by steamdrivenandy Sat 13 Jun 2020 - 11:24

The very first post says there is no aircon.
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Post by AlanCope Sat 13 Jun 2020 - 11:26

Not factory fitted, I thought that, but can't find a switch, I will have another look, but it's not easy to see if there is a pump, and can't see anything on the rad.

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Post by steamdrivenandy Sat 13 Jun 2020 - 11:27

The very first post says there is no aircon and I don't think cabiar was even possible on '04 Boxers/Ducato's. It only became possible with the change of chassis to the X250 which A/S appear to start using in '07.
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Post by Mrgeoffrey Sat 13 Jun 2020 - 11:28

steamdrivenandy wrote:The very first post says there is no aircon.
Apologies,  lockdown fatigue  and  myopia creeping in!
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Post by AlanCope Sat 13 Jun 2020 - 11:36

No need to apologies, I said no Factory fitted Air Con, does not mean no aftermarket, however if it is then they hid the switch really well  content

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Post by Mrgeoffrey Sat 13 Jun 2020 - 11:43

Could be oil cooling for power steering, pipe looks about the right size.
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Post by Mrgeoffrey Sat 13 Jun 2020 - 12:58

Mystery solved, I think!! It's a fuel pipe. I should probably spend less time on the interweb. smile! [You must be registered and logged in to see this link.]
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Post by Roopert Sat 13 Jun 2020 - 13:03

Yes, it's a very cheap and not very effective fuel cooler. VW fit a small finned aluminium radiator under the T5's floor instead.
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Post by Peter Brown Sat 13 Jun 2020 - 13:10

I was following a similar path trawling through the parts lists but got distracted - well done for finding it.
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Post by steamdrivenandy Sat 13 Jun 2020 - 13:15

OK, I'll ask the obvious question, why would you need to cool fuel?
As said it must be fairly ineffective anyway, given that if the tank is cold, it's not going to get any colder running through that pipe and if the tank is warm there'll be precious little cooling going on as it'll be warm under the van too.
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Post by HairyFool Sat 13 Jun 2020 - 13:40

It is in the return feed back to the fuel tank so after the high pressure pump which would raise the temperature and after passing through the rail on top of the engine also raising the temp.

Difficult to see making something like that is cheaper than a finned cooler.
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Nuevo ES 2004 Strange Pipe Empty Re: Nuevo ES 2004 Strange Pipe

Post by AlanCope Sat 13 Jun 2020 - 14:15

Thankyou all for your answers  up!

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