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Old 08-01-2012, 10:31 PM
lio45 lio45 is offline
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Running ambient temp WVO in dual tank IDI

I have a trusty old 7.3 IDI pickup sitting in my driveway, and a nearly endless supply of super clean WVO...

(...which, and I'm sorry to say it here on this forum, is being used as fuel in my modded-for-pure-WVO diesel Chevy truck...)

The thing is, I might, sooner or later, end up dead Like a Rock on the side of the road, because these few molecules of water remaining in the WVO will eventually, according to many knowledgeable GM diesel techs, kill my DB-4 IP.

I will need a truck when that will happen, and I'm wondering if I could simply run my Ford on an ambient temp WVO/diesel mix in one tank, start on pure diesel, then switch to the un-heated WVO (which I suppose can't be 100% WVO, it has to be cut with some diesel fuel) when the engine is hot...

What do you think? This idea was inspired by linus72, the guy who drove his '90 IDI across the USA running non-heated WVO (and it seemed to work...)

If it works well, who knows, maybe I'll be modding the IDI to keep it as a daily driver from then on



Thanks in advance for the feedback!
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Old 08-02-2012, 02:51 PM
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Quote:
Originally Posted by lio45 View Post
I'm wondering if I could simply run my Ford on an ambient temp WVO/diesel mix in one tank, start on pure diesel, then switch to the un-heated WVO (which I suppose can't be 100% WVO, it has to be cut with some diesel fuel) when the engine is hot...
All other issues aside, doing what you describe will quickly result in WVO contamination of your "pure" diesel tank, because there will still be WVO in your injection pump and return lines when you switch back to diesel (purge cycle) to shut the engine down. Without a 3-valve system, it's nearly impossible to avoid cross contaminating your tanks.

Otherwise, I don't really know. I've never run WVO myself, just WMO, but I've heard that running WVO at ambient temperature is a good way to coke things up quickly. Heat (not too little and apparently not too much) is your friend for injector/injection pump longevity.
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Old 08-02-2012, 10:01 PM
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444dieselrod 444dieselrod is offline
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Why not just pull all the stuff for WVO off the chevy when it dies and put it on the Ford, problem solved.

Diesel Rod
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Old 08-03-2012, 12:11 AM
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stupid question but what the hell is wvo?
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Old 08-03-2012, 12:38 AM
joshofalltrades joshofalltrades is offline
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mikey, WVO = waste vegetable oil, and WMO = waste motor oil
this might have been better placed in the alternative fuels forum, but whatever.

for having not done much WVO research myself, i might suggest reading the the alternative fuel forum here - thats where i learned what to do for WMO, and what common mistakes to avoid.
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Old 08-03-2012, 01:12 AM
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oh i think that would be a good idea but id rather much run diesel myself because around here and what i do there is more of a supply of it dyed or clean its all around here and plenty to use to lol
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Old 08-03-2012, 01:15 AM
lemonshindig lemonshindig is offline
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WVO has to be heated or it will gel the fuel lines. It has to be heated in the tank, through the lines, and all the way to the engine. It needs to reach like 180 degrees before it goes into the cylinders. A lot of people use their coolant system as a heat source.

You can't run room-temp wvo through your fuel system, at least not for long. It will clog your lines and your fuel filter. It will clog injectors. It will clog the IP.

Also, blending it with diesel won't help. It will separate in your tank and build up at the bottom.

Go to frybrid.com and read up on his system and his excellent explanation of how it works and why it's necessary. Very informative stuff.

I used to collect WVO and convert it to bio in my garage. It wasn't very difficult to do once i got going and the truck couldn't tell the difference. It never, ever caused me problems, and now this was like 6 months ago.
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Old 08-03-2012, 11:17 AM
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Quote:
Originally Posted by 444dieselrod View Post
Why not just pull all the stuff for WVO off the chevy when it dies and put it on the Ford, problem solved.

Diesel Rod
Would work, but my plan right now is to replace the IP on the Chevy. I'll need another truck while it's sitting in my garage, and I have another truck already (my reliable, but 2WD, IDI Ford).

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Originally Posted by lemonshindig View Post
Go to frybrid.com and read up on his system and his excellent explanation of how it works and why it's necessary.
Are you telling me this? Or to someone else in the thread?
FYI I first ran a VW Rabbit on WVO in 2002... then I ran my VW Golf for a year on WVO (stopped because the restaurant that was my source of WVO back then closed, and getting WVO was a PITA). A few years ago, a good friend of mine found a great and reliable source, so I decided to sell my gasoline V8 4x4 F150 to get a diesel 4x4 instead so I could run it on WVO.

The question asked in this thread is, since I've grown spoiled and used to not paying for fuel in my pickup truck, and sitting on a bunch of WVO, is there a way to avoid having to run my temporary, non-modded replacement truck on 5$-a-gallon diesel during the time the Chevy is sitting in my garage waiting for a new IP?

It's been pretty much answered, so thanks... but the guy from the "going to California" thread did it, apparently, and it worked. Was he simply coking everything, and it wouldn't have lasted? I guess so...
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Old 08-03-2012, 02:01 PM
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Quote:
Originally Posted by joshofalltrades View Post
this might have been better placed in the alternative fuels forum, but whatever.
I kinda agree with you, I actually hesitated in picking between the two forums... but it's a IDI-specific question as well. There are things you can do to a IDI which you shouldn't attempt on a PS. (I've never heard of anyone managing to run "cold" WVO in a PS.)

I figured, let's ask in the IDI subforum, but with the fact it's a WVO-related question clearly visible in the thread title. (Had I asked it in the Alternative Fuels subforums, obviously, there would have been "7.3 IDI" in the thread title.)
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Old 08-03-2012, 02:45 PM
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i run my 7.3 at least half the time on ambient temp wvo, but I live in SW Florida and it never really gets that cold. maybe 2 months out of the year I run diesel 100% of the time.
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Old 08-03-2012, 04:52 PM
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Quote:
Originally Posted by lio45 View Post
I have a trusty old 7.3 IDI pickup sitting in my driveway, and a nearly endless supply of super clean WVO...

(...which, and I'm sorry to say it here on this forum, is being used as fuel in my modded-for-pure-WVO diesel Chevy truck...)

The thing is, I might, sooner or later, end up dead Like a Rock on the side of the road, because these few molecules of water remaining in the WVO will eventually, according to many knowledgeable GM diesel techs, kill my DB-4 IP.

I will need a truck when that will happen, and I'm wondering if I could simply run my Ford on an ambient temp WVO/diesel mix in one tank, start on pure diesel, then switch to the un-heated WVO (which I suppose can't be 100% WVO, it has to be cut with some diesel fuel) when the engine is hot...

What do you think? This idea was inspired by linus72, the guy who drove his '90 IDI across the USA running non-heated WVO (and it seemed to work...)

If it works well, who knows, maybe I'll be modding the IDI to keep it as a daily driver from then on



Thanks in advance for the feedback!

I remember him not making it to California. We don't yet know why or what is going on with his truck but he couldn't get it started last time I checked. Water in your WVO is not good for the IP or the injectors. Water scoring on the injector tips will ruin them before long. Water in the IP will cause corrosion and poor lubrication of the IP internals. You should de-water your WVO before running it. There is plenty of info about it on the net.

I highly suggest not running it unless it is pre-heated before the IP. If you are in a warm climate, you do not need to pre-heat the whole tank. Blending WVO with Diesel is OK according to my tests. I did not notice any separation or drop out. Blend it before you filter it so it is easier to run through your filters. I still advise you pre-heat the blend.

I don't like WVO/SVO because there is a lot of baby sitting to be done if you want to run it correctly and not damage your engine. If I were going to run anything it would be WMO. If you find an uncontaminated source for WMO/UATF then all you need to do is blend it, filter it then run it.

DO NOT mix UMO and WVO. You will get dropout from the UMO that will clog everything up and ruin your day. You can blend the two in a cone tank, drain the drop out, filter and run the rest. Still pre-heat, that mix, though since it has WVO in it. I would still blend in some RUG or D2 to get the viscosity right.
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Old 08-03-2012, 04:52 PM
 
 
 
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