Ah, okay thank you. I guess I need to get some fatter stuff then if I've only got 5.6 and 3.5mm. It's a big learning curve, this Edit: or am I getting my internal and external dimensions confused??!
The pipes are bigger than what you've got. The dimension is the bore of the pipe - have a measure. Think I did mine with 7mm - can't remember.
Does anyone know what part 27 is on the exploded diagram? I made my own part 28 by gluing a short piece of fuel line inside a shorter piece of vacuum hose but then I found a proper one on VWH so I bought that and then ruined it by resorting to drilling out the fine hole in the top in an attempt to get the see-through breather pipe part 9 to connect to it, not realising I was missing a part 27. Is it just a piece of dizzy vacuum pipe?
I used a short piece of Cunifer pipe to join the hose (9) to the connection (28). The ID of the breather hoses should be slightly smaller than the OD of the pipe it connects to, clips are not required but don’t do any harm – incidentally, it is a myth that worm drive hose clips should not be used on fuel hoses.
Whenever I've seen really chewed up ends on fuel lines they've always had standard jubilee clips fitted and over-tightened. Coincidence maybe, but for the price of them I can see no reason why you wouldn't use proper fuel line clips. As a quick fix I agree that jubilee clips aren't going to cause your bus to burst into flames.
Yep, this. You can use a short bit of copper fuel pipe and a spark plug boot to join the breathers to the airbox.
Jubilee has been manufacturing ‘proper’ hose clips since 1921; I’ve been using them for almost 50 years and have never had a problem but I use the correct size clip and don’t overtighten it. For what it’s worth I use nut and bolt hose clips – what many onerously consider to be the only ‘proper’ hose clip – on the low pressure fuel lines on my Bay but for the high pressure system on my fuel injected V8 MGB I only use worm drive hose clips. There are some facts on hose clips here http://www.volksbolts.com/faq/fuelhose.htm#Clips
77 Westy - that's a great link. I just read the link off that page to the DfT's report on ethanol additives in petrol; http://www.volksbolts.com/faq/bioethanolstudyreport.pdf OMG - apart from fuel lines crumbling into dust, our carbs are going to melt and cylinders rust up! And that's assuming we get it started in the first place without vapour lock and keep them running without icing up!! E10 no thanks!!!
@77 Westy just read through the clips, I never realised that about fuel clips... just always used clips as I felt in my head they were better as I could tighten something up, rather than the standard fuel clips... @mcswiggs had this problem on my motorbike, and the mechanic who stripped my carbs down and sorted out the issues told me to always check the pumps for E numbers a few years back and always go for the lower number for these reasons, so it's usually the "premium" fuels that go in.. I have found a few pumps down midlands way that are ethanol free, but it does depend on region and stations I have found... Def. dont use supermarket stations as they are the worse quality of all...I like my bike and bus to much to just ruin the constant maintenance and effort to keep them running to ruin it by saving a couple of quid on petrol.
The trouble with any clips is when 1/4" (6.35mm) hose is used - it's almost a full mm bigger than what's needed and any hose will fail to adequately clamp it, it's just that jubilee clips make slightly more of a mess if it's tried and also an oversize jubilee clip will tighten up to a small hose after a fashion. IMO mis-use has got jubilee clips a bad name
Gents just starting to get down to doing the fuel lines and I'm totally good with what I've seen... Been under the bus and can see the track the fuel lines takes... Couple of questions.. If there is a return line is it close to the outlet on the tank? Can't see anything else from the tank pointing down so hoping all is good there...happy to get a PIC if it helps... Pipe through firewall. The PIC hopefully attached is what I have to go in but when tracking it with what's there the current pipe bends around the curve of the engine...does my new part need to be bent? Final one the fuel line going from the tank to the firewall.. Does it have a specific clip to go into or is it place it where it can go? Currently its free falling.. Thanks up front for the help...
I was rummaging around in my odd bits box looking for something akin to a short piece of cunifer for the mysterious part 27 (see earlier comment) and I found a perfect short length of steel tube. As I was cleaning it up I tried to remember where I got it from and eventually I remembered it was bunged in the very end transparent pipe that was dangling loose when I first got the bus! So I had the right part all along... I know it's only a trifle but sometimes small victories are the sweetest.
Always nice when you find original kit somewhere in your bus. I found a huge grommet under the cupboards in mine. It was only when I put an original airbox back on, I realised it was the bung from the back of the bracket
