Petrol engines Fuel lines fire warning
From VW-Tech
Well worth reading if you are new to VW buses/transporters of any vintage, and the T25 is no exception
Replacement fuel hose has internal diameter of 7mm and you'd need 2M to do from tank to carb (2WD). The cheap stuff from GSF with material exterior, just keep an eye on it as you can't see the hose breaking-down inside the external cover. Don't use cheap jubilee clips, get proper fuel hose clips (requiring proper crimping tool) to hold it on. The best stuff has a fabric material sandwiched between two layers of rubber.
There is many a bus that has burst into flame because the fuel lines have not been replaced. If you have just bought your bus do them all so you know that they have been done. The best stuff has the braiding sandwiched between two layers of rubber as you look at it in cross section, the one with braiding on the outside is not recomended as you cant inspect the condition of the rubber, that said fuel lines can degrade from the inside out so an external inspection is not always reliable. Use proper fuel line clips, not jubilee clips as they can pinch the hose and damage it. Replace the line from the carb to the solid line that comes into the engine bay as a priority. Good fuel line and clips are sold at Halfords.
Some later vehicles have a plastic Tee-piece mounted on the engine bulkhead - these can perish and crack and have been known to be the cause of escaping petrol and fires. Injection models (2.1 DJ, MV etc) at risk due to higher pressure in fuel lines, any small leak leads to sprayed fuel, then vaporised and if ignited a fire (a la Buncefield depot!). Yes, am trying to worry you, so we all check and reduce this incidence of VW van fires...
