Is R9 still the spec to use for fuel hose

You may have aready thought of this, but if it helps, when I had to drain my tank to remove it I popped the fuel bit by bit into my mums car as I didn't have loads of containers lying around. Used a plastic hose clamp to clamp the hose that comes directly out of the tank, removed the inline fuel filter above the geabox then would just release the hose clamp when I needed to fill up my jug. Did it in stages but didn't waste any fuel as It's fill in expensive stuff! Obvs this plan only works if you have another vehicle that could do with some fuel. Good luck with it whatever method you choose

I've also opted for 100% bioethanol safe fuel hose after reading too many horror stories of fuel hoses leaking in engine bays and the carnage that ensues...! but have learnt something new about line of Gates hoses!

 

I ended up buying a big jerrycan .. sorry German WW2 standard issue fuel can design container..oh noes cultural appropriation .. and filling that although using a lift pump would have helped as I had to lie it over a lot to get it under the bus..

And knowing that I had a smooth fuel outlet that I could quickly swap the old hose for a clamped off new hose also helped on another occasion .Just tried to avoid the petrol pouring out for the couple of seconds it took to swap, or used a gloved finger

 

Anyone know total length of hose needed to replace existing hoses in an early ('71 DP type I with single pict34)?
I started the bus a couple days ago with a view to getting ready to move it to the new carport, it hasn't been started in 5 1/2 months, but started right up, even with a suspected blown #3 head... but I noticed fuel peeing under the engine. Traced it to the small hose that is pump->carb. I guess that's perished. I am not too worried about the rest as it's clearly a different type and looks in good condition, but I'm gonna change the lot anyway this spring as I fix the engine.
So, how much do I need? 2m?

 

If you have the steel pipe, 1m is probably enough... maybe a bit more.

 

I think 2 metres is enough to cover the distance - even if you do not have any steel pipe : but passing through the firewall there should be a metal pipe with a grommet - either steel pipe or a piece of cunifer brake line, the metal will slice a rubber hose if its just fed through. It will eventually slice a steel hose without a grommet too.

 

Yes and no there's no steel pipe on type-4s and they're not known for chopping pipe. Part of the problem we all have is assuming something that took 30-40 years of neglect to cause a situation is some sort of problem. The problem is not steel or rubber pipe through tin, it's just neglect.

 

^this. See also "vans catching fire". Root cause: 40-year-old fuel hoses.

 

I had to replace the steel pipe because it came to me with a notch that cut half way through the metal where it went through the firewall.

 

Sure, but not because there's anything wrong with that design, or the alternative t4 flex pipe through a grommet, just 40 years of neglect.

 

It was 38 years of neglect.. now its almost 50 years of neglect.