Petrol hose ( again )

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myredscimitar
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Petrol hose ( again )

Post by myredscimitar » Mon Apr 15, 2019 8:22 pm

A couple of weeks ago I noticed some cracks appearing in the supply hose to the fuel pump, replaced about five years ago with what I thought was good quality hose ( labelled R9, see photo ) I bought some Cohline from AJL and finally got around to replacing it today.

A couple of thoughts, most of the old hose seems OK, its just badly cracked on the fairly tight bend to the pump. Does the tight bend / underbonnet heat / vibration accelerate cracking?

Despite the horrible cracks the hose was still holding petrol. Does this suggest it is deteriorating from the outside in? If so does this suggest its not the Ethanol / petrol causing the damage but something on the outside?

Whatever, a timely warning to all, keep a close eye on the hose, however good quality you may think you have fitted.

Keith
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peter freeman
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Petrol hose ( again )

Post by peter freeman » Mon Apr 15, 2019 9:06 pm

I have fitted my pump next to the tank where it is out of the weather and easier to get at. I have also kept the rubber hose to a minimum length and metal piped into the engine bay so all of the rubber is easy to see without having to get under the car.



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Alan SS1
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Petrol hose ( again )

Post by Alan SS1 » Tue Apr 16, 2019 1:03 pm

myredscimitar wrote:
Mon Apr 15, 2019 8:22 pm
A couple of weeks ago I noticed some cracks appearing in the supply hose to the fuel pump, replaced about five years ago with what I thought was good quality hose Does the tight bend / underbonnet heat / vibration accelerate cracking?

Whatever, a timely warning to all, keep a close eye on the hose, however good quality you may think you have fitted.

Keith
that's where mine went, managed to shorten it at road side and continue the journey!!!

it was a 'formed' shape that came off (1600) but replaced with a longer section of 'normal' petrol pipe, seems to be OK, as was looking at carb last night.


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Petrol hose ( again )

Post by philhoward » Tue Apr 16, 2019 1:31 pm

I think the short answer is if it’s got white writing printed on the outside just like yours (and some stuff I pulled off the Sabre at the weekend), it isn’t sufficiently good quality whichever way you look at it.


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