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| 68stang |
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{USERNAME} wrote: dont diesel cars run a compression of like 40:1? and also i thought they had a glow plug to start it and then they dont have spark plug?
someone could probably correct me... also in engineering I just did a study on biodiesel for use in diesel trains. It was suggested for unmodified diesel engines that they be run at most on 80% biodiesel 20%petrodiesel (although this was conservative as to offer best protection for engine). It should be noted that overseas, volkswagon and scania have 100%biodiesel engines. I know that many here might not care about emission, but also biodiesel has 80% less carbon dioxide, 100% less sulphur and 90%< less unburnt hydrocarbon particles. Also has greater lubricating ability than petrodiesel and is safer to transport due to higher flash point. yes diesels use glow plugs to ignite the fuel as appossed to spark plugs as diesel requires a higher temp to ignite. they also use a lower comp ratio. |
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| Froudey |
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just droped some fuel out of a HZJ75 and it was bio diesel and f**k MAN it smelt like Paint thinnners no joke on the smell so me thinks Bio Diesal not good.
prolly as said before diesal need stronger blocks and head but i wonder if you got a cast iron head of a early falcon and put it on the xf block with nah that wouldn't work it comes done to he injection of the diesal???
_________________ R.I.P Tobias my son. |
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| ebfairmont3.9 |
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well.... this is a funny 1... Shave alot off your head. Stock cam. Screw in glow plugs where ur spark plugs go... Remove your butterfly on the intake...fit the diesel injectors and pump and it may work lol... Diesel fuel has a RON rating of like 45 so the hi-comp doesnt mean to much for block strength.. Also other s**t i didnt not say of course lol just a stab.
_________________ 1994 ED Fairmont Champaign Gold - AU Series II Intech 4.0L - EL EFI - Thermo Fans - 4.11 LSD - Pacemaker 4480 Into Custom 3" Exhaust - Shift Kit |
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| phongus |
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{USERNAME} wrote: just droped some fuel out of a HZJ75 and it was bio diesel and f**k MAN it smelt like Paint thinnners no joke on the smell so me thinks Bio Diesal not good.
prolly as said before diesal need stronger blocks and head but i wonder if you got a cast iron head of a early falcon and put it on the xf block with nah that wouldn't work it comes done to he injection of the diesal??? Biodiesel shouldn't smell like paint thinner as far as I know...if it does, i think there must be something else in the engine...Should smell like whatever it was made out of. phong =P~
_________________ phongus = Post whore 2006 |
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| Krytox |
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diesels comp ratios should be between 14 and 25 :1
_________________ Carefree, we may not be number one, but we're up there. |
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| Leroy |
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{USERNAME} wrote: {USERNAME} wrote: dont diesel cars run a compression of like 40:1? and also i thought they had a glow plug to start it and then they dont have spark plug? someone could probably correct me... also in engineering I just did a study on biodiesel for use in diesel trains. It was suggested for unmodified diesel engines that they be run at most on 80% biodiesel 20%petrodiesel (although this was conservative as to offer best protection for engine). It should be noted that overseas, volkswagon and scania have 100%biodiesel engines. I know that many here might not care about emission, but also biodiesel has 80% less carbon dioxide, 100% less sulphur and 90%< less unburnt hydrocarbon particles. Also has greater lubricating ability than petrodiesel and is safer to transport due to higher flash point. yes diesels use glow plugs to ignite the fuel as appossed to spark plugs as diesel requires a higher temp to ignite. they also use a lower comp ratio. they dont use glow plugs to ignite the fuel. the diesel is injected into the cylinder in a fine mist at high compression and spontainiusly combusts
_________________ Now driving a Hilux |
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| grumblebum04 |
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{USERNAME} wrote: they dont use glow plugs to ignite the fuel. the diesel is injected into the cylinder in a fine mist at high compression and spontainiusly combusts The glow plugs create a hot spot for the fuel to start ignition when cylinder is cold, sort of like carbon build up produces a second flame front on a petrol engine (detonation/pinging). Once warmed up they are not required. When you see aerostart (ether) being used for starting a diesel engine it is not because of the fuel, it is because that engine has lost compression and has difficulty achieving the ignition temp of diesel,even with glow plugs.. Ether ignites at lower temps. Grumbles
_________________ The thunder of .05 will echoe around Bathurst for ever. |
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| silique |
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{USERNAME} wrote: {USERNAME} wrote: Don't Run Bio Diesal it is f**k up. ford australia voids warranteee etc etc there is a sign stating the fact about bio diesal is f**k injector pumps and lift pumps etc etc i work at a wreckers and we see engines that needed to be replaced because of the fact but different cars different eninges etc It doesn't f**k up your engine...if you know what you are doing. First of all you don't go straight biodiesel. You should go 10% biodiesel at first and then over time increase the amount of biodiesel. Once you hit about 50% biodiesel to diesel you should replace the fuel filter, fuel pump, fuel injectors etc cause the biodiesel removes all the carbon build up on the fuel line from previous continoues usage of conventional diesel. By removing all the carbon build up it helps clean the fuel line. Clean fuel lines means smoother operation, though you have to replace all the parts along the fuel line. If it is done that way, it will work fine. If you go straight 100% biodiesel, within or less then a full tank, you may already require to replace the fuel line, though that is not suggested due to what Froudey said...it f**k up the engine. phong =P~ Please help me with my confusion. Carbon is a by-product of the combustion process. That being so. Why would there be carbon deposits inside the fuel line, lift pump, fuel filter(s), injector pump, injector lines or injector? Isn't that solely reserved to the combustion chamber, pre-combustion chamber (if so designed) and associated plumbing? If I am correct what possible harm could bio-diesel do to the fuel delivery system? |
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| 4LEDboy |
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A few questions
Are you looking at fitting a diesel enine to your car? or using your petrol engine as a diesel? (that probably won't work lol) I've always wanted to see if a toyota/nissan i6 diesel would fit in the engine bay of the E series, probably would with a bit of modding. Its mainly older diesels that use glow plugs now, I know with my old SD33 she won't even think of firing up without a 20-30 second glow in the morning! And they only come on when starting, once the engine is running they switch off, diesels use very high compression to ignite the fuel. Newer engines are usualy direct injection and have a small combustion chamber in the top of the pistion and instead of seperate glow plugs they have a heater in the in the intake manifold to heat the air as it enters the bore, they will usualy fire up as soon as you hit the key! As for Biodiesel (well fish and chip oil) Alot of people just filter the oil very well then modify the car to run on the oil. First the car is started on normal diesel and begins to heat the oil up so it is the right viscosity to be run through the injectors, then its switched over to the oil when up to temp, then when its about to be shut down it goes back to diesel to clean out the injector pump/lines ect. I've also heard of people running water injection to stop the carbon build up from the chip oil
_________________ {DESCRIPTION} < Click on it! You know you want too! Quote: Thats not the point *a**hole
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| uterus_someonehasmyname |
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This company reckons thay can convert any engine im looking into it for my landcruiser
http://www.greendieselcorp.com/
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