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Dec 30, 2007 21:39:47 GMT
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anyone here run there derv motors on veg oil?
I'm planning on doing this i was just wondering how people went about there conversions if any
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Dec 30, 2007 21:44:23 GMT
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Dec 30, 2007 21:57:34 GMT
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I was only talking about this the other day...
Not doing it yet and my plans to buy an old diseasel may just have been derailed by another offer which I'll talk about later if anything actually comes of it because it might not because you never really know but I'd really like it to happen so fingers crossed.
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1986 Citroen 2CV Dolly Other things. Check out my Blog for the latest! www.hubnut.org |
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Dec 30, 2007 21:58:56 GMT
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Ask Oldbus, he has had some, and did the tuning too.
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Dec 30, 2007 22:12:13 GMT
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I ran a 2.5 tdi Discovery on straight veg oil (SVO) i bought from Makro. (was about 55p per litre back then) it ran perfectly well with no mods up to about 80-90% veg oil. TBH it would have probably run fine at 100%.
I also ran a 106 1.5 diesel on it with no ill effects.
On REALLY cold mornings, it would sometimes take 2 cycles with the glow-plugs to start but nothing to get your knickers twisted over.
On the down-side, veg oil has rocketed in price recently. its still cheaper than diesel, but the savings arent as large. I hear that tesco is about he cheapest, but it pays to shop around. seemingly chinese supermarkets are also good for price. Personally, i was willing to pay slightly more if it came in a bulk 20 litre drum, as buying a trolley-load of 1 litre bottles is a pain in the chuff, raises eyebrows at the till (not that i give a curse word), is a hassle to fill up and leaves feckloads of empty bottles to deal with.
I would image using waste oil would be best value if you can find a restaurant or canteen who will give you the old oil, but it takes a fair bit of filtering to remove debris, and can be contaminated with water, which is bad for the pump. Plenty on the net about how to treat it properly before use.
There are a lot of twin-tank systems and pre-heaters and stuff available on the net but i ran without a single problem without any of that stuff, a mixture of round town and long journeys. The disco even semed to run significantly smoother and quieter on veg oil.
my prediction for the immediate future is cheap old diesel cars will become very sought-after and gain a bit of value as more people cotton on, untill the price of veg oil equals diesel, then it will all die down again. And your chips will cost more.
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1986 Panda 4x4.
1990 Metro Sport.
1999 Ford Escort estate.
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Dec 30, 2007 22:23:48 GMT
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If you've got space, 1000 litres of ready-to-use waste oil sold on Ebay recently for £378. Do the math as they say. Ready to use biodiesel can be bought for around 95p a litre in 205 or 1000 litre containers if you do some Googling. Not the cheapest way to do it but more environmentally sound.
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1986 Citroen 2CV Dolly Other things. Check out my Blog for the latest! www.hubnut.org |
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Dec 30, 2007 22:31:05 GMT
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Last Edit: Dec 30, 2007 22:31:44 GMT by dave21478
1986 Panda 4x4.
1990 Metro Sport.
1999 Ford Escort estate.
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Dec 30, 2007 22:41:16 GMT
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ok if you have spare time and space to treat it but i just want to fill up and go  |
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Darrel
Posted a lot
Posts: 1,167
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Dec 30, 2007 23:27:41 GMT
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By the time youve removed the water out of that e-bay oil I wonder how much WVO is left. I'm currently running my 406Turbo Diesel on 100% svo and its perfect. Sainsburys are doing Pura oil at 55p a litre so all is good. Ideally you need an old Merc, or an XUD engined frenchie with a Bosch pump. You cant go wrong then.  |
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Tim
Posted a lot
Posts: 3,340
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Hmm, i've been thinking of this - my 406 td 2.1 is crying out to be veggied, but not sure if the engine is setup for it as i know its slightly different to the 1.9 - its a 98 car (99 reg though)
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Tim
Posted a lot
Posts: 3,340
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hmm, after a bit of net research, it seems i can run it on high ratios/straight svo, but i would need to check that it has a bosch mechanical pump, and not a lucas one, although not sure how to check this :-)
I presume you just bung the oil straight into the tank with the diesel?
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Dec 31, 2007 11:23:18 GMT
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hmm, after a bit of net research, it seems I can run it on high ratios/straight svo, but I would need to check that it has a bosch mechanical pump, and not a lucas one, although not sure how to check this :-) I presume you just bung the oil straight into the tank with the diesel? if you have the bosch pump then all you need to do is make a fuel heater so the water from your cooling system pre heats the fuel before it reaches the engine should'nt be to hard to do with a few lengths of copper pipes etc |
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bazzateer
Posted a lot
Imping along sans Vogue
Posts: 3,653
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Dec 31, 2007 11:35:01 GMT
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I would need to check that it has a bosch mechanical pump, and not a lucas one, although not sure how to check this With any luck it'll have Bosch or Lucas written on it  |
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1968 Singer Chamois Sport
1972 Sunbeam Imp Sport
1976 Datsun 260Z 2+2
1998 Peugeot Boxer Pilote motorhome
2003 Rover 75 1.8 Club SE (daily)
2006 MG ZT 190+ (another daily)
2007 BMW 530d Touring M Sport (tow car)
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Dec 31, 2007 12:04:39 GMT
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if you don't have a bosch pump there is still another option basicly veg oil is to thick untill it has been heated so the option is to run veg oil in a second fuel tank with a 3 way valve (x2 if you have a return) get the engine upto temp on derv still use a heat transfarer from the cooling system like i said before but only needed for the veg oil once your engine is warm just switch the valve over to the second tank and you away the only thing you need to remember is to switch it back about 2min before you park the car for any length of time which the engine will totally cool as to purge the derv back throught the system for your next cold start I'm planning on trying to make a fuel heater out of basic plumbing stuff i think large diameter coper pipe with a few t peices and some of the smaller copper pipe that radiators use and abit of time to think about it and it should be a good job |
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Darrel
Posted a lot
Posts: 1,167
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Dec 31, 2007 12:11:37 GMT
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They don't unfortunately. The shape of the is different,however you are lucky in that all 406's have Bosch pumps fitted. As long as its an XUD and not a HDI, just bung the oil straight in the tank. Try 25% oil first to see how it runs first slowly bringing the % up over the next few tanks. Also change the fuel filter every month for the first 3 months. I would need to check that it has a bosch mechanical pump, and not a lucas one, although not sure how to check this With any luck it'll have Bosch or Lucas written on it |
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Dec 31, 2007 20:23:38 GMT
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if you have a lucas pump you need a heat exchanger to warm the oil up there are many out there this is the one I have fitted to mine cgi.ebay.co.uk/VOW2C-Veg-oil-Bio-diesel-Fuel-Heater-Heat-Exchanger_W0QQitemZ170181774962QQihZ007QQcategoryZ9895QQssPageNameZWDVWQQrdZ1QQcmdZViewItemI run on (SVO) & have done for over 12 months with out any issues I use pura oil from tesscos at 56P per ltr this heat exchanger is the duel one so it has a heater plug for cold starting & I have this on a switch so when the hot water is up to temp I turn it off although this uint has a thermo switch on it I have also fitted this unit close to the diesel pump so the oil is hotter going into the pump on cold starting off the heater plug first thing in the morning   this unit is fitted to my tata loadbeta 4 x 4 double cab v reg year 2000 as I run my own small business I was looking for a basic & simple duel purpose vehicle & a allrounder cheap & this fit the bill just fine I do approx 30-40 k per year including towing a car trailer & fuel is my biggest overhead & by running on veg oil my profit is greater & running costs lower ;D   this leaves my more £££££££ to play with my toys so it works for me you can go 50/50 but should be looking at 70/30 mix but for real savings you need to be 100% (SVO) i am looking at 100% (WVO) now working on a filter system for the used oil i have a supplier that i can have there used oil FREE so free fuel is next for me i hope this info will help out a little but there are alot of myths about the use of veg oil |
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Last Edit: Dec 31, 2007 20:54:36 GMT by madmods
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I'm planning a twin tank system with a heat exchanger and a heated filter with thermostat removed ill only be switching to the svo tank on long journeys
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ive been looking in my engine bay and ive got a large space i could posssibly fit a 20ltr metal fuel can in there i was thinking if i cut some holes and welded a few steel tubes straight throught the center of it then i could heat the tank with coolant aswell as having a fuel pre heater closer to the engine but before i start with all that i need to do some tests to see if my engine runs ok on warm veg oil so heres my plan I'm going to get a pair of 3 way valves and attach them inline with the fuel and return with a short length of tube from each ill then warm some veg oil in the house and take it out to the car stick the tubes in the oil and fire it up then ill know if its worth carrying on with this idea then ill make a project out of it |
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Tim
Posted a lot
Posts: 3,340
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I don't really want to dick with the car: Hopefully, as it is a XUD 406, it has a bosch pump, and i can just chuck a low ratio of svo:diesel in and bring the ratio up over refuels
is there anything to be aware of - can chucking too much SVO in break anything - i presume it could clog the fuelling system.
balls to it, I'm at just over 50% in the tank, and need to fill up. Sainsbury's oil aisle a gogo :-)
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i ran a pug 406 1.9 td 1996 p reg with 220,000 on the clock on (svo) with out any issues & no mods but in the winter i did mix with diesel if weather was very cold ie (hard frost) as when starting from cold the engine ran a little uneven until it got warm this is why i fitted the duel heater to my tata
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