Guest BrainFluid Posted March 20, 2006 Hi. Please read Its Alive! Phase 1 here before reading. If you already have then by all means carry on! Phase 2 Shopping list. Twin tank solenoid. (Ebay £33 with postage) Fuel tank. (Ebay £10 with postage) Fuel line. (Scrapyard £5) Both phases required in 2 Switches, 2 Relays, a good 10 meters of wire, blue lock connecters and fully insulated recepticles, a fuse holder and a bag of plastic ties. (£15 Maplins) Here is the car before any work was done. So, after installing the in line electric fuel heater (see bulk buys section) ...and the coolant heated fuel filter (its worth pointing out that if you use a second hand coolant fuel filter you should open it up and clean it out. Mine needed a good clean and would not have worked otherwise.) ...which is connected to the bulk head heater hoses. Make sure your plumbing doe not touch any moving parts or anything that gets hot! Also check if your fuel filter needs the coolant to flow in a certain direction, mine did. I decided to carry on and install the twin tank set up with this tank in the boot. ...using this lenght of fuel line, witch has flexible line at each end and is attached under the car with plastic ties (it just went through an existing hole in the boot) The other end of the fuel line goes to the original fuel filter. This 3 way solenoid ...was connected to the 'out' fuel lines from both fuel filters and to the injector pump (via the electric fuel heater). And wired up. Both the Twin tank solenoid and the electric fuel heater are operated thanks to 2 switches under the drivers air vent. They are both fused and use a relay each to protect them further. (I used a hot knife to make 2 square hole to fit the switches in, I now know that all you need to do is drill a hole, put the switch behind the panel and use the supplied screw 'cap' to hold it there and make it look all flush) And thats that! I start the car on diesel to warm it up, then turn the electric fuel heater on and switch over to veg oil (80%veg oil 20%diesel, in the original tank) then finish on diesel so I can start up on it again. Give it a shot and help save the planet... and your fuel bill! Many thanks to the missus for letting me get my dirty hands all over her white apple i book. And this is my boy, he loves to drive and currently has a bucket seat in the back middle seat connect to all three seatbelts! Well, you cant be to carefull. Thanks for reading and all the best! Nathan. oh...Do you think the fuel cap gives the game away? Many thanks to Ahl for Helping me get the pics in this thread working. Thanks Boss. Share this post Link to post Share on other sites
dead205 0 Posted March 20, 2006 Thats just brilliant!!! Maybe i'll try my v70 tdi - i could do with saving a few £'s Hope the tax man isn't reading this though!!!! Share this post Link to post Share on other sites
alex205mi16 1 Posted March 24, 2006 FECKIN ELL thats a serious bit of kit, hats off to you for being original! i think you should produce a scematic of the system and its wiring so people can follow it better, its pretty complicated if someone wanted to follow. Cracking idea though.. keep us posted with its development and or any running issues!!! Share this post Link to post Share on other sites
Guest BrainFluid Posted March 24, 2006 Will do! First update on having the twin tank in is just how quick the diesel from the second tank works its way through the piping. The first time I used it to start I waited 25miles worth of driving before switching over to the veg oil. Then I switched back over to diesel for the last 25 miles on the motor way. I had put 12 litres into the diesel tank and after that there was only a couple of litres left in the diesel tank! Now I know that there is no leak along the extra fuel line, and what with picking some ebay items up I did do 100 miles more than I did with out the twin tank if you see what I mean. So I guess that I'm simply surprised at how much the engine is over fueled as its running. I know that a turbo'ed engine gets overfueled more but thats still around half of the diesel that the engine is getting going back into the veg tank! Come to think about it now 25 miles does seem rarther a lot just to warm the engine up and then to just get diesel through the line to the injectors. Next time I will try 15 miles to start on 10 miles to finish and see how much diesel is left in the twin tank after that! Nate. Schematics huh...I guess that I could cook some up. Watch this space. Share this post Link to post Share on other sites
Guest BrainFluid Posted June 16, 2006 UPDATE Injector Pump now blown a seal and leaking after doing 8000 miles. That was on the 80% veg oil 20% diesel mix with the afore mentioned modifications to boot. Theres a spare and newer Injector Pump which i'll try running a 70/30 mix with but what with lucas IP's being what they are in this game i'm interested in finding out the possiblities of fitting a bosch IP from a 1.9 XUDT. Does anyone know if the fittings are the same for each IP? Both the 1.7XUD and the 1.9XUD run both the Lucas and the Bosch IP's thats all i know so far. Nate. Share this post Link to post Share on other sites
Alastairh 47 Posted June 16, 2006 (edited) Was going to say, a friend chucked veg oil in his 306 and after time blew the pump, because apparently diesel acts as a lube, where the veggie s*it isn't doing it, i haven't looked into it myself. Alastair Edited June 16, 2006 by Alastairh Share this post Link to post Share on other sites
Baz 421 Posted June 17, 2006 Never the less, bloody good work old chap!! Share this post Link to post Share on other sites
Guest BrainFluid Posted June 17, 2006 Was going to say, a friend chucked veg oil in his 306 and after time blew the pump, because apparently diesel acts as a lube, where the veggie s*it isn't doing it, i haven't looked into it myself. Alastair Not true. Veg oil is a fantastic lubricant. The problem is the higher viscosity of the fuel threatening to shear the pumps main shaft or as in my case the higher pressure involved (because of the higher viscosity) that has blown a seal on the pump. Remember were talking about a lucas pump here, which are known to respond poorly to veg oil compared with the bosch pump that has proven to be excellent at handling veg oil as a fuel. In fact it is nearly safe to say that is you have a bosch pump and the weather is warm chucking 100% veg oil in will work safe and fine. Not that I would recommend it but it would be the safest 'bare' set up... Never the less, bloody good work old chap!! Thanks. Phase 3 is now on the drawing board. Nate. Share this post Link to post Share on other sites
