Perished fuel hose - V6 Clio Phase 2

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Perished fuel hose - V6 Clio Phase 2

Postby stephendell » Tue Jul 23, 2013 8:51 pm

I don't know if this has been posted up before or if my car is different from production ones (although the part looks identical to the one on the parts fiche).

Started my car today and it was a bit reluctant and there was a strong smell of fuel. Looked under the car and saw a puddle. Turned on the ignition with an assistant looking in the engine bay and the fuel was spraying out everywhere.

The link hose that connects the two fuel rails (under the plenum near the throttle body) had completely perished. Although factory it looks like it was not fuel rated hose. I have never seen fuel hose of this age perish so badly. Please check your hose as this would have been an engine fire on the next run.

The feed and return hoses are rigid plastic material and not affected. Maybe they used a different material (rigid plastic) for the link hose on the production cars in which case presumably they will all be OK. Maybe someone can take a look and advise.

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Trafic, Twingo GT, Vel Satis Turbo x 2, Clio V6 Proto Ph2, Vel Satis 3.5, Avantime, Alpine A610, GTA Atmo x 3, GTA Turbo x 3, R5 Gordini Turbo Mid Engine, Alpine A310 4cyl, Alpine A110, Yellow Smart
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Postby phildini » Wed Jul 24, 2013 11:40 am

Renault love a good old BBQ in our engine bays :lol:
84 R5 Le Car2 Turbo, 95 Clio 16V mk1, 68 Alfa Romeo 1750 GTV, 99 Mitsubishi Evo VI, 06 Porsche Boxster, 11 Lotus Evora S
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Postby turbohead » Wed Jul 24, 2013 4:17 pm

:shock: eeeeeeekkkkkk :!:
is it the same in ph1 ? smelled fuel in this morning! Will check before driving home :roll:
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Postby stephendell » Wed Jul 24, 2013 4:27 pm

That particular hose is phase 2 only.
Trafic, Twingo GT, Vel Satis Turbo x 2, Clio V6 Proto Ph2, Vel Satis 3.5, Avantime, Alpine A610, GTA Atmo x 3, GTA Turbo x 3, R5 Gordini Turbo Mid Engine, Alpine A310 4cyl, Alpine A110, Yellow Smart
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Postby stephendell » Wed Jul 24, 2013 4:53 pm

After a bit of research seems:

SAE 30 R6 is fuel hose for low pressure use
SAE 30 R9 is fuel hose for injection use

One of the main differences being permeability specifically resistance to ethanol in fuel.

Maybe I used some E85 in a French supermarket?

In any event the manufacturer had used the wrong hose on my car.

I had ordered a new length of R6, now just ordered some R9 instead!
Trafic, Twingo GT, Vel Satis Turbo x 2, Clio V6 Proto Ph2, Vel Satis 3.5, Avantime, Alpine A610, GTA Atmo x 3, GTA Turbo x 3, R5 Gordini Turbo Mid Engine, Alpine A310 4cyl, Alpine A110, Yellow Smart


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