Warning to SVO users

[Paul Humphreys]

http://cgi.ebay.co.uk/FACET-Electric...3286.m14.l1318

might do.

Paul

[Paul Humphreys]

Or

http://cgi.ebay.co.uk/NEW-12v-Electr...em320273475071

[PinkSeriesIII]

Or

http://cgi.ebay.co.uk/NEW-12v-Electr...em320273475071

never liked solid state facets. The facet off the 90 (petrol) is more like this one ...
http://cgi.ebay.co.uk/FACET-SILVER-T...mZ320254042281

[Paul Humphreys]

Use to use them on my Minis

Paul

[PinkSeriesIII]

Use to use them on my Minis

Paul

I remember the mini sometimes used the big SU leccy pump (on the GT 1275cc?), the same pump found on all sorts of UK cars of the era since the 50's. I got one of them tucked away somewhere too.

[Paul Humphreys]

I remember the mini sometimes used the big SU leccy pump (on the GT 1275cc?), the same pump found on all sorts of UK cars of the era since the 50's. I got one of them tucked away somewhere too.

Yes I used one of them as well, from a Jag as I ran twin 1 3/4" SUs from a Jag on an 1480 that reved to 8k . But the fuel standard pump was not up to it.

Paul

[Snagger]

I don't know enough about pumps to determine which would be appropriate. I was going to get some advice from the SVO kit fitters.

[tony109]

Your concerns about coking on a multi speed engine are interesting to hear.. Running a constant speed engine on dripping did cause carbon bumping after around 2 weeks use.. Ive not had any problems with a multi speed engine on veg oils, as cylinder temperatures/ pressures never remain constant.
So has anyone experienced this?
There is a very effective method of preventing this on heavy, constant speed engines, automotive engines are a little more tricky

[Snagger]

Your concerns about coking on a multi speed engine are interesting to hear.. Running a constant speed engine on dripping did cause carbon bumping after around 2 weeks use.. Ive not had any problems with a multi speed engine on veg oils, as cylinder temperatures/ pressures never remain constant.
So has anyone experienced this?

Try looking at this link I put near the beginning of this thread - there's a whole forum of people who've experienced it and some very savvy seeming members who know how to cure it: http://www.biofuelsforum.com/svo_use...need_know.html

[littlelegs]

Try looking at this link I put near the beginning of this thread - there's a whole forum of people who've experienced it and some very savvy seeming members who know how to cure it: http://www.biofuelsforum.com/svo_use...need_know.html

Without seeming to go around in circles here, at the begining I pointed out that this person was unqualified did not know what he was talking about. He was trying to turn around well known facts and characteristics in a rant gleaned from other bright idea amateur websites to suit his case regarding different engines and his comments bore no relationship to actual facts or what I've known or been taught over many years as a diesel mechanic. I don't disagree that some engines will run better on SVO in less than ideal conditions but many of the problems highlighted were unrelated to SVO such as a failed turbo.

Of course it is possible to have problems with any fuel on any engine if it is not used or set up properly as Snaggers was but SVO is not as simple to use as diesel and people don't understand that and are often using short cuts in the use and creating long term problems and I don't think snagger will disagree with that. The secret is easy, always use clean hot SVO in a hot engine to always burn clean and give the engine a good thrash now and then on diesel to burn off any carbon that just might be there. I do this even with diesel and never need to touch the engine or injectors at all as they burn themselves clean, ask any MOT tester which cars easily pass the smoke test, slow or fast driven cars?

[littlelegs]

Without seeming to go around in circles here, at the begining I pointed out that this person was unqualified did not know what he was talking about. He was trying to turn around well known facts and characteristics in a rant gleaned from other bright idea amateur websites to suit his case regarding different engines and his comments bore no relationship to actual facts or what I've known or been taught over many years as a diesel mechanic. I don't disagree that some engines will run better on SVO in less than ideal conditions but many of the problems highlighted were unrelated to SVO such as a failed turbo.

Of course it is possible to have problems with any fuel on any engine if it is not used or set up properly as Snaggers was but SVO is not as simple to use as diesel and people don't understand that and are often using short cuts in the use and creating long term problems and I don't think snagger will disagree with that. The secret is easy, always use clean hot SVO in a hot engine to always burn clean and give the engine a good thrash now and then on diesel to burn off any carbon that just might be there. I do this even with diesel and never need to touch the engine or injectors at all as they burn themselves clean, ask any MOT tester which cars easily pass the smoke test, slow or fast driven cars?

I've read Snaggers link over and over again and I seem to have got hold of the wrong end of the stick on the first post as to what this person was actually trying to say through the unnecessary ranting and long drawn out descriptions. Although he doesn't make it very clear to me or reinforce the point, it appears he is actually trying to say what will happen if you don't use a twin tank system and the effects of cold running. We are in fact saying the same thing. My mistake!

[Chasesdragons]

Regarding the original post about knowing when the Diesel system has taken over. Why not install a vacuum gauge? This will drop towards 0 when diesel is starting to cycle through and it will also let you keep an eye on any system stress when running WVO/SVO (higher than parameter vacuums due to oil viscosities and filters starting to clog up)

We are just dragging through a 100" Lightweight project using a Discovery 200Tdi base. Thankfully it comes ready with a twin tank system. FPHE etc is ready to be fitted.

There is supposed to be only 65% energy in VWO or SVO in comparison to Dino. Despite the fact that it is burnt more cleanly. I have a feeling someone is pulling the wool over my eyes here - WVO/SVO is slow burning. I think there is a lot of injected fuel that is going to be burnt off in the exhaust, dropping the power further....need to read up on atomisation and burn enhancing..

Keep it coming.

Regards
Udhi

[PinkSeriesIII]

My mistake!

did wonder - and started ignoring your input cuz of it

[Snagger]

I've read Snaggers link over and over again and I seem to have got hold of the wrong end of the stick on the first post as to what this person was actually trying to say through the unnecessary ranting and long drawn out descriptions. Although he doesn't make it very clear to me or reinforce the point, it appears he is actually trying to say what will happen if you don't use a twin tank system and the effects of cold running. We are in fact saying the same thing. My mistake!

Yep - I think you're now on the same page, so to speak. What that guy was saying is fundamaentally the message that I'm trying to get across, though he has much greater knowledge and experience than I do.

The message is that to run SVO without damaging your engine, you need to ensure you have a system that only injects warm SVO into a warm engine, with a thorough purge system to ensure that the engine starts on 100% diesel, not a mixture of diesel and SVO (regarless of however diluted).

The "just tip it in the tank" advice is dangerous to the longevity of the engines, and users need to be aware of the degree of coking and subsequent bore scrubbing, ring gumming, spray pattern disruption and oil polymerisation that occurs even with twin tank systems if the purging is not 100% effective.

As for the energy content of SVO, I haven't noticed any signifacnt performance reduction compared to running on diesel.

[littlelegs]

did wonder - and started ignoring your input cuz of it

Wouldn't be the first time for me, must read more carefully!