Biofuel blend, runs a while, stops, rests then starts again.

[4everlearning]

Originally Posted by ponypop

The CPS is the cam position sensor it is located on the front of the engine on the passengers side in the front. You need a 10mm and a flat screwdriver to change it they cost about $20. I do not know of any other filter than the one behind the injection pump. As for your fuel, I think what you are doing sounds fine, I have logged over 200,000 miles on home made fuel. I have been making my own long before most people jumped on to the home made fuel band wagon. That is I have been making my own fuel for about 10 years, I make it 100gal at a time and use 55gal used oil, 12 gas, and 33 diesel and it works. Regardless what others say it works and my trucks have always ran good on it as well as my D-8 bulldozer, combine, and three tractors. So if you add up all of the thousands of gallons in the farm equipment and the 200,000 miles in the powerstroke I would say it is your truck and if you have a formula that works for you then do it. I for one have no problems in the summer or when the weather gets down in the teens the fuel always works.

Now that mixture I would believe. I could be wrong about the first fuel filter but I know that I have one on my truck but maybe his truck doesnt have one. he needs to look into it.

[jackofalltrades1980]

Ponypop,

Thats what made me try the fuel blend idea in the first place, having read about other people having tried the blending idea...Sounds like you're doing approx a 50/50 blend of WVO to petrol fuels as well...Quite true that despite what anyone else does say, however well intentioned, if it works, it works. I guess I'll give the CPS a shot, hell whats $20? Im definately not gonna give up the fuel blending idea, if a truck can run on straight oil, heated or otherwise, oil thinned with petrol should work. Again, right now the fuel in the tank is probably 5-10 gal of 80/20 and 5 gal of straight diesel, truck seemed to stay running at that point. Ill be doing more testing with the truck going up and down the road near the house so if it stops, at least I wont be too far from home, waiting 5 min to start back up to drive a mile or so wont be that big of a deal...If you or anyone else has any more info, Ill be happy to hear it, thanks again all...

[GreenF350]

Originally Posted by jackofalltrades1980

Ok brain fart, CPS is the cam position sensor...Anyway, after doing a little research, it would sound like that is possible, but still doesnt explain why it did it when running that first fuel blend....Would really suck if it was just a strange coincidence that the damned thing went out at the same time I was using the fuel blend...

That is exactly what it would be. The fuel blend would not "make" the CPS fail, it would just be a coincidence if the CPS is bad. Sometimes weird things happen.
-Aaron

[Clay Henry]

You are only proving further that this will not work...its been known for years that cold vo injected into a cold motor - blended or not - will not work. It will be the death of your motor as well.

[ponypop]

Clay I think you may be off the mark by a bit. You have a 6.0 and they are not very forgiving, what we are talking about are 7.3's and It will work. My original reply-- As for your fuel, I think what you are doing sounds fine, I have logged over 200,000 miles on home made fuel. I have been making my own long before most people jumped on to the home made fuel band wagon. That is I have been making my own fuel for about 10 years, I make it 100gal at a time and use 55gal used oil, 12 gas, and 33 diesel and it works. Regardless what others say it works and my trucks have always ran good on it as well as my D-8 bulldozer, combine, and three tractors. So if you add up all of the thousands of gallons in the farm equipment and the 200,000 miles in the powerstroke I would say it is your truck and if you have a formula that works for you then do it. I for one have no problems in the summer or when the weather gets down in the teens the fuel always works.

[Benwood]

The symptoms sound to me like fuel starvation, eg weak fuel lift pump in frame rail below drivers seat or fuel filter, i know you replaced it but just what it sounds like, dont sweat the people giving you a definitive no it wont work. i think you have a coincental failure of cps or lift pump...

[Clay Henry]

Originally Posted by ponypop

Clay I think you may be off the mark by a bit. You have a 6.0 and they are not very forgiving, what we are talking about are 7.3's and It will work. My original reply-- As for your fuel, I think what you are doing sounds fine, I have logged over 200,000 miles on home made fuel. I have been making my own long before most people jumped on to the home made fuel band wagon. That is I have been making my own fuel for about 10 years, I make it 100gal at a time and use 55gal used oil, 12 gas, and 33 diesel and it works. Regardless what others say it works and my trucks have always ran good on it as well as my D-8 bulldozer, combine, and three tractors. So if you add up all of the thousands of gallons in the farm equipment and the 200,000 miles in the powerstroke I would say it is your truck and if you have a formula that works for you then do it. I for one have no problems in the summer or when the weather gets down in the teens the fuel always works.

I understand BUT, this guy is talking about using WVO, not used motor oil...there is a huge difference when it comes to burning it cold verses heated. There is much research to prove that this will in fact shorten the life of an engine causing coking of the rings followed by death of the engine. And yes, some engines will handle it longer than others ...the IDI engines will handle it longer as reseach has proved. Your mixture is less than 50 % oil also...not alot of oil in my opinion...but try using 80%WVO and diesel and this will simply be too thick in winter temps for the cold filters to flow it causing starvation. The lift pump will not like it at all and the rings will be coted in a nice nasty layer of carbonized crap within a few thousand miles.
In southern climates you would definately get by doing this a little longer but not in a cold winter climate.

[Clay Henry]

Originally Posted by Benwood

dont sweat the people giving you a definitive no it wont work.

I hate to be a nay sayer but it has been proven to cause problems with the engine.

Coking followed by blowby that mixes with the crank case oil and the combination results in something that resembles mayonaise... not pretty.

[jackofalltrades1980]

Ive surely had some weird crap happen to me with cars/truck that just didnt make absolutely no sense... shouldnt surprise me now...As far as the truck, again, even after I had the thing run on diesel again, it still did that same crap where it stalled out after a few min of running, which just confused me that much more. Well anyhow I did pull the CPS out, Im gonna try that thing and see what happens with the thing. I did have my suspicion about the little mechanical pump on top of the engine near the back, wondering if maybe the thing wasnt pulling hard enough and the filter housing would run dry. Again I still cant get over how well the thing started up, even when it was dead cold, no glow plugs, nothing, just crank and popped off, fast. Probably even better than it did on regular diesel. Well the backyard tinkerer's work is never done...

[95and05]

Originally Posted by jackofalltrades1980

Ive surely had some weird crap happen to me with cars/truck that just didnt make absolutely no sense... shouldnt surprise me now...As far as the truck, again, even after I had the thing run on diesel again, it still did that same crap where it stalled out after a few min of running, which just confused me that much more. Well anyhow I did pull the CPS out, Im gonna try that thing and see what happens with the thing. I did have my suspicion about the little mechanical pump on top of the engine near the back, wondering if maybe the thing wasnt pulling hard enough and the filter housing would run dry. Again I still cant get over how well the thing started up, even when it was dead cold, no glow plugs, nothing, just crank and popped off, fast. Probably even better than it did on regular diesel. Well the backyard tinkerer's work is never done...

that is common with cps failure your fuel could be great and the truck may run perfectly on it. the symptoms to me sound like the CPS will fix it but i have been wrong b4. i will be watching this thread bcause i am now very interested in your blen and the fix. have fun with it all