Se7enUp Posted February 24, 2010 Share Posted February 24, 2010 Hypotheticaly speaking - if a 300tdi's fuel line was pulled clean out of the fuel tank (or cut through really close to the tank) - how far would the vehicle get if it was started and driven? (assuming normal urban type driving?) Anyone care to guess? Quote Link to comment Share on other sites More sharing options...
Guppy Posted February 24, 2010 Share Posted February 24, 2010 Seeing as your fuel filter contains about a pint(?), I should think a couple miles before the whole shebang runs dry? Might one ask why? Quote Link to comment Share on other sites More sharing options...
SiWhite Posted February 24, 2010 Share Posted February 24, 2010 Clever security devise? Quote Link to comment Share on other sites More sharing options...
Se7enUp Posted February 24, 2010 Author Share Posted February 24, 2010 Could be I don't trust hidden switches on the fuel solenoid as I've seen first hand how ineffective they can be, so am trying to be "creative" Quote Link to comment Share on other sites More sharing options...
TSD Posted February 24, 2010 Share Posted February 24, 2010 Seeing as your fuel filter contains about a pint(?), I should think a couple miles before the whole shebang runs dry? Not even that far I suspect. The injection pump will suck the filter dry and blow it out of the spillway pretty quickly. Quote Link to comment Share on other sites More sharing options...
LandyManLuke Posted February 24, 2010 Share Posted February 24, 2010 Seeing as your fuel filter contains about a pint(?), I should think a couple miles before the whole shebang runs dry? The engine circulates a lot more fuel than it uses. When my lift pump died a few years ago I got home by strapping a 2L container to the wing and filling it up with a gerry can. I seem to recall it getting through 2L of fuel every 3-4 Miles. If I've remembered correctly, the fuel filter alone would last less than a mile. Quote Link to comment Share on other sites More sharing options...
Se7enUp Posted February 24, 2010 Author Share Posted February 24, 2010 Brilliant - cheers all One mile sounds absolutely ideal! As another idea, would the engine continue to run if the fuel return line was "blocked"??? Also, does anyone happen to know the internal diameter of a standard 300tdi fuel supply/return line? Quote Link to comment Share on other sites More sharing options...
M&S Posted February 25, 2010 Share Posted February 25, 2010 My old motorbike used to get about 2 miles before it started to cough and splutter...then I realised I'd left the fuel tank valve shut and had to quickly fumble for it whilst coasting to a stop. You'd think I'd have remembered after a few days.weeks.months Sorry, not much help to you. Quote Link to comment Share on other sites More sharing options...
cieranc Posted February 25, 2010 Share Posted February 25, 2010 If you blocked the return, you'd probably just blow a pipe off. Quote Link to comment Share on other sites More sharing options...
Se7enUp Posted February 26, 2010 Author Share Posted February 26, 2010 OK, thanks for that. Looks like the supply line is the one to investigate then. Does anyone know what size fuel pipe/hose is used on a tdi? Quote Link to comment Share on other sites More sharing options...
fender1234 Posted February 26, 2010 Share Posted February 26, 2010 8mm ID Quote Link to comment Share on other sites More sharing options...
mogmaner Posted February 26, 2010 Share Posted February 26, 2010 youl be lucky it the engine runes for more than a couple of mins at tickover , if you tryed to drive it you might get 200m befor it starts to die,had a similer set up on my fathers car ,when he forgot about it it normly stoped befor he had chance to pull off. Quote Link to comment Share on other sites More sharing options...
LandyManLuke Posted February 26, 2010 Share Posted February 26, 2010 If you're opening or closing a valve, the amount of fuel in the line or filter doesn't really matter. Once the valve is closed, fuel will stop flowing. Potentially, if you close a valve before the lift pump and filter, you might risk the lift pump trying to draw air in at any joints between your added valve and the lift pump. Quote Link to comment Share on other sites More sharing options...
gee1599 Posted February 26, 2010 Share Posted February 26, 2010 the cost of a lift pump will be a lot cheeper than a replacement landrover Quote Link to comment Share on other sites More sharing options...
Se7enUp Posted February 26, 2010 Author Share Posted February 26, 2010 8mm ID Cheers for that Quote Link to comment Share on other sites More sharing options...
cieranc Posted February 26, 2010 Share Posted February 26, 2010 Maybe, but what about the arse on of having a collapsed filter or pipework damaged through it? The novelty will sharp wear off! Quote Link to comment Share on other sites More sharing options...
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