Petrol effect on non compatible pipes

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Steve1967
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Great Britain

#1 Petrol effect on non compatible pipes

Post by Steve1967 » Tue Apr 21, 2020 11:22 am

Hi all, I've read in numerous places that petrol can erode rubber pipes if they are not specified for this use, particularly now that we have ethanol additives.

I needed a piece of pipe to run from my petrol tank breather pipe up to the filler tube, it's about 10" long and I had a perfect piece, great I thought, that will do. I had read on here somewhere that you should check by immersing a piece of the pipe in fuel for 24 hours to see if it will be ok, so I cut a piece off and soaked it overnight.

The next morning, after just 7 or 8 hours this was the effect..... the pipe had swollen to about twice its previous size and I guess it would be destroyed in just a few more

So, be warned, don't be tempted!!

Regards

Steve
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Steve living in Tewkesbury, UK
1967 E Type 4.2 series 1.5 roadster 80% completed restoration
1960 Austin Healey 3000 BT7 restoration complete!

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keithmac
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#2 Re: Petrol effect on non compatible pipes

Post by keithmac » Tue Apr 21, 2020 11:59 am

Thanks Steve !
Early 1967 S1 OTS, 1952 MG TD

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abowie
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#3 Re: Petrol effect on non compatible pipes

Post by abowie » Tue Apr 21, 2020 10:23 pm

Wow! It's a bit like Viagra.
Andrew.
881824, 1E21538. 889457..oops. Jezza the V12 XJS race car.
http://www.projectetype.com/index.php/the-blog.html
Adelaide, Australia

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Steve1967
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#4 Re: Petrol effect on non compatible pipes

Post by Steve1967 » Tue Apr 21, 2020 10:54 pm

Yes, I tried a pint of petrol just in case!!! 😉
Steve living in Tewkesbury, UK
1967 E Type 4.2 series 1.5 roadster 80% completed restoration
1960 Austin Healey 3000 BT7 restoration complete!

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dal2.0litrefrogeye
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#5 Re: Petrol effect on non compatible pipes

Post by dal2.0litrefrogeye » Thu Apr 23, 2020 6:12 am

I did this experiment a few years back when I found out I managed to buy the last length of gates 10mm in tank submerged fuel hose in the country , I had enough for what I needed , just , but decided to see what new fuet would do , so in an old metal oil can I left 3 lengths of hose , one just a bit of heater hose . An unleaded petrol hose , and some of the old school clear with cord running through it ,submerged in unleaded , annnnnd the two rubber hoses were destroyed within a month, swollen with bits flicking off and turned the petrol 'Gas' black , and the old school clear still complete just very very soft ,the one still capable of holding fuel who'd of guessed that ......... I still wouldn't ever use it though 8-)
Last edited by dal2.0litrefrogeye on Thu Apr 23, 2020 7:22 pm, edited 1 time in total.
Its a way of life not a hobby
Darren . 64 4.2 modded 69 4.2

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mgcjag
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#6 Re: Petrol effect on non compatible pipes

Post by mgcjag » Thu Apr 23, 2020 7:40 am

Hi All.....If you want fuel hose make sure its correctly marked for fuel use https://www.viperperformance.co.uk/brai ... -hose.html
Steve
1969 S2 2+2 & Building a C type replica

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