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Old 11-12-2004, 10:08 AM   #51
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Location: Fir Island, Washington
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Cooking oil/fuel

Keep up the good work. I have been watching in the wings for quite some time. It seems that you are slowly but very surely working out all of the bugs. I have a 78 Crown with a 671 Jimmy. Right now I am working on the interior. Soon I will very seriously looking into alternative fuel. One thing that I did notice is that you have isolated your return lines. Diesel to Diesel and veggie to veggie. That is a good thing as you would not want the veggie to congeal in the diesel tank. I would suppose that you have been to Mr. Sharkey's web page. If not I would suggest it. Very informative. As I mentioned earlier keep up the good work but most important for me as a computer challenged individual keep up the good postings.

Later, J.B.
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Old 03-06-2005, 07:17 PM   #52
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Update march 2005:

The odometer now reads about 167,000 miles. most of the last 6 or 7K miles was driven on diesel fuel.

I took a trip to burnigman and back. At the time, i had plenty of money, but not much time. It takes time to find a suitable fuel source when on the road. I burned maybe 100 gallons of wvo that i brought with me on the trip, the rest of the driving was done on diesel fuel.

This was also my first winter with wvo. I pretty much gave up driving on wvo in the winter. The oil is ok once it gets into my tanks since they're heated, the problem is getting the oil from the restaurant. I would have to carve it out in blocks then bring it home and let it thaw. There are simplier methods, but i lack the desire.

I do very little winter driving with my bus, but wvo is definately much more tricky in the cold weather. We've had several days this season that were in the single digits.

don't think that i'm giving up on wvo! I used almost 1,000 gallons last year and i'm very happy with the results so far. For the most part, i don't venture more than 100 miles from home, but i use the bus nearly every weekend during the summer months. I have the filtering process down to a science now. It takes very little time for me to filter 60 gallons of oil.

I would like to change things slightly in the future however
In the wvo conversion i did i my mercedes 240 D, i have two heated wvo tanks: once for dirty non filtered wvo, the other for clean wvo.
cold dirty wvo gets pumped through a screen and into the first tank where it is heated with engine coolant. The hot oil not only flows much much faster through the filter, but the filters last a really long time.

cold oil yields 10-50 gallons of cold wvo through a filter before it's usless
hot oil has lasted for over 100 gallons on one filter....i'm still on my first filter so i don't know when it'll become too plugged to be of any use. This method of wvo filtering seems to be the better way to go. My mercedes only uses a max of 20 gallons of oil at a time. Now that winter is here, i've given up wvo usage in the MB also but spring is just around the corner!
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Old 03-07-2005, 04:40 AM   #53
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Thanks for all the info. Originaly planned on getting a bus with 366 gas simply because gas engines are cheeper and easier for me to fix, but then I did some calulations on how much a1000 mile trip would cost on gas compared to diesel. OUCH! and now I look at the possibility of running that diesel on WVO and making the effort of putting the some money saved back for future engine repares is very inviting.
Im goin diesel!
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Old 06-08-2005, 06:51 AM   #54
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It's already june, and i am still not on veggie oil yet this year! I disconnected the system during the winter when i was remodeling the bus, and have yet to put it back together. A week ago last saturday i put $85 in the bus, then the following wednessday i put $95 in diesel in the bus. That trend needs to stop. At this rate, i'll be spending almost $400/month in fuel.

IF all goes as planned, I'll have everything working again tomorrow on the new modified WVO system.

The plan is the keep my twin heated tanks, but fill them with cold dirty oil (oil that is strained through a screen, but not filtered) I can pump probably 20 gallons per minute or more since the oil no longer has to be forced through the filter. I also plan to add a float switch to shut off the pump in case i'm not payig close enough attention.

After the oil is heated, a pump will force the hot oil through three filters, a 20, 10, 5 micron in that order. From there, the oil will go off to the Racor heated fuel filter, then the oil will travel through the stock lifter pump, through the stock fuel filter, and back to the injector pump.

I will need to periodically clean out the veggie tanks as they will tend to collect more debris now that i'm pumping dirty oil into them.

I also need to find a couple more suitable locations to collect oil from. I've moved since last year and no longer live near my original sources. There is a restaurant near my new place that was letting me take oil for my mercedes, but i've found that it takes about three restaurants to quench the bus' thirsty apetite for fuel. Last summer i used about 50 gallons per week of veggie oil. I think i tend to drive the bus more often when i know the fuel is nearly free. Driving the bus to run errands or just cruising around also allows for lots of research and development to fix any of the bugs in the system. It's much better to have a minor breakdown in the veggie system when you have no place you have to be, rather than being late for a party on saturday nite!

Hopefully I'll keep my diesel fuel cost down to about $100/month
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Old 06-04-2006, 08:40 PM   #55
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never accomplished the goals in the previous post....but i did do a new veggie oil system in my current's not quite finished though.

I believe that the 2 heated veggie tank system is the way to go. Pump "dirty" oil in to the first tank, heat it, then filter it into the clean tank.

I tried running my new bus without a return line when i went to nevada and back. I could not get all the air out of the line. I finally switched back to using the return line, and i'm much happier with the way the bus runs.

Having electric fuel pumps in the veggie and diesel fuel lines is also a really great idea. They don't run constantly, but are used just for priming the system.

The pollock 6 port valve costs about as much as 4 brass manual quarter turn valves. if you're gonna do veggie, buy the 6 port electric valve!

I thought i made a post about it sometime ago in the past...but can't find it. My current bus has some good lengths of heated fuel line that look like this.

This particular photo is stolen from somewhere on the web...I did however reverse the coolant and veggie lines in my setup. It made more sence to me to have the coolant in the big tube, and the veggie fuel line running through the center.

One more thing i changed in the new system: larger fuel and return lines. I used 1/4" copper tubing in the first bus. This created much higher pressures in the return line than were necessary, also made the system impossible to run without an aux pump. I think that 1/2" tubing/hose works much better, and is way safter for the injector pump. In the current bus, I used a combination between copper pipe, and flexible clear tubing. The biggest disadvantage of the tubing is that you cannot use a torch to heat it up if the veggie coagulates in the line.
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Old 04-18-2007, 02:31 PM   #56
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Originally Posted by voxecho
i noticed that the link at the beginning of this thread is dead. has anyone got a link to it or something like it anymore? ~E
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Old 08-30-2007, 11:40 AM   #57
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Re: A Biodiesel kit that works

This is a wonderful thing to do but one guy was fined for running veg. oil because he had not paid any road tax I wonder in the years to come you have an elc. car they going to tax your mileage veg. oil diesel agian is uncle sam going to tax your mileage what do you guy think?
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Old 09-17-2012, 11:15 PM   #58
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Re: A Biodiesel kit that works

My partner and I just purchased a 1991 Blue bird with a DT 360 turbo engine. She runs perfect and we want to find the best SVO conversion system that will not harm the engine.

Anyone currently running such an engine on vegetable oil that can help us?

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Old 02-07-2017, 09:33 PM   #59
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Re: A Biodiesel kit that works

I have followed this set of post not because of my bus 366 gas engine but for my other projects i was wondering about converting wvo to diesel i have done it on a small scale collecting parts for 50 gal. system or bigger to run in in my farm tractor and truck it takes just abit of studing and the use of 2 chemicals that you can pick up at the grocery store or home improvement store seems to me that its the less costly and easier way to go no added plumbing pumps and tanks but then maybe i am missing something
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Old 02-07-2017, 10:19 PM   #60
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I really hope it goes well for you. But I know a lot about engines and experimenting with systems like that does risk damage to the fuel injector pump. Hopefully your bus is a dog nose and changing the pump will be easy. I have a TC2000 flat front Bluebird, and I can't even lay eyes on the pump without a mirror and flashlight. So i'll keep playing it safe with dinosar fuel.

Birch Run, MI
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