Keep Stock Filter or Not

For discussing the modifications needed for diesel vehicles to run with 2 tank veggie oil conversions.

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Keep Stock Filter or Not

Postby knoxbiobenz » Mon Jan 26, 2009 10:04 pm

I am planning ion have 1 common fuel line from the valve un der my feet to the IP. I will run a HOH wrapped to the engine bay.
I do not know what I want to do with my stock fuel filter. I am mounting a 10 micron fuel filter that is very large in the bed of the truck.
Should I bypass the Stock filter?? How do I bypass the stock filter???
Pics would be great with this..

Thanks Guys,
Zack Smith
1995 Dodge Cummins 2500, 194,xxx miles
2- Tank System Designed from Sun's
25,000 VO miles

1984 MB 300D- Sold
1983 MB 300TD- Sold
1980 MB 300SD- Sold
knoxbiobenz
 
Posts: 40
Joined: Thu Dec 25, 2008 9:08 pm
Location: Knoxville, TN

Postby knoxbiobenz » Mon Jan 26, 2009 10:11 pm

Sun,
I was just looking over your 2-Tank design and I like the way that you have a seperate fuel filter for each 2 fuels.
By the way, I found a 5/16" Compression T Fitting at Ace HArdware, Lowe's did not carry it and neither did several of the plumbing a pipe places in town.
I want to thank you for your help so far with this conversion and I also want to ask for some specific help and directions in installing the T Fittings into my existing fuel lines. I honestly do not know where they are supposed to go and I have never used on of these b/4.
I did buy a small pipe cutting tool.

Thanks again,
Zack Smith
1995 Dodge Cummins 2500, 194,xxx miles
2- Tank System Designed from Sun's
25,000 VO miles

1984 MB 300D- Sold
1983 MB 300TD- Sold
1980 MB 300SD- Sold
knoxbiobenz
 
Posts: 40
Joined: Thu Dec 25, 2008 9:08 pm
Location: Knoxville, TN

Re: Keep Stock Filter or Not

Postby SunWizard » Tue Jan 27, 2009 10:25 am

knoxbiobenz wrote:Should I bypass the Stock filter?? How do I bypass the stock filter??

I didn't bypass the stock filter since it gets used so little it will last for many years.
YVORMV - Your veg. oil results may vary.
95 Dodge Cummins 4x4 SVO WVO conversion.
81 Mercedes 300D- stock and happy on V80/D20 blend.
Low fossil net zero house- 100% solar power and heat.
SunWizard
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Postby SunWizard » Tue Jan 27, 2009 10:37 am

knoxbiobenz wrote:Sun,
I was just looking over your 2-Tank design and I like the way that you have a seperate fuel filter for each 2 fuels.
By the way, I found a 5/16" Compression T Fitting at Ace HArdware, Lowe's did not carry it and neither did several of the plumbing a pipe places in town.
I want to thank you for your help so far with this conversion and I also want to ask for some specific help and directions in installing the T Fittings into my existing fuel lines. I honestly do not know where they are supposed to go and I have never used on of these b/4.
I did buy a small pipe cutting tool.

Fittings go anywhere you like to match the diagram and locations you use for parts. If you don't know what is where on your truck you should look at a diagram or pic from a shop manual. Its best to keep all your hoses as short as possible. I did 5 cuts, and this would go best on my conversion thread since you can see the diagram:
1,2-the D2 supply and return lines down near the valve in the floor.
3- the line between the lift pump and the stock filter.
4- between the stock filter and IP, gets a T
5 -injector drain near the top of the stock filter.
YVORMV - Your veg. oil results may vary.
95 Dodge Cummins 4x4 SVO WVO conversion.
81 Mercedes 300D- stock and happy on V80/D20 blend.
Low fossil net zero house- 100% solar power and heat.
SunWizard
Site Admin
 
Posts: 1723
Joined: Mon Dec 11, 2006 2:53 pm
Location: N. Colorado

Postby David » Wed Jan 28, 2009 12:20 am

Why remove the stock filter?
It is located close to the IP and provides a last line of defense for a very expensive component of your vehicle.
It also allows any air to be bled off which may enter the system when you change components further upstream.

As sun says, if you do everything else right it will last a very long time. If you have a problem, it may save you a small fortune by catching the trouble before it has a chance to really screw things up.
_____________________

I don't give a damn about what might or could happen until a significant group of people can tell me it HAS happened to them.
Until then, it's just more endless gloom and doom Veg folk law.
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Location: Sydney Australia

Postby knoxbiobenz » Wed Jan 28, 2009 5:19 pm

Thanks for the bit of re-affirmation David.
I have to be completely honest with you. At first I was planning on cutting several corners from Sun's setup and directions but after doing some more reading I have decided to go with his entire set up from top to bottom.

I am going to include pictures of my progress and I feel certain that I will have many questions.

I know that this area is one that has been discussed a lot but I was just wondering if anyone had any pics of where they installed the Compression T Fittings into the fuel lines near the stock fuel filter, IP, and lift pump.. Also, I am still a little foggy about which direction the fuel flows from the stock fuel filter. I am still a little fuzzy about the cuts (3,4,and 5) from Sun's previous post.

I want to thank you Guy's for your patience and clear directional thinking and time.

Zack Smith
1995 Dodge Cummins 2500, 194,xxx miles
2- Tank System Designed from Sun's
25,000 VO miles

1984 MB 300D- Sold
1983 MB 300TD- Sold
1980 MB 300SD- Sold
knoxbiobenz
 
Posts: 40
Joined: Thu Dec 25, 2008 9:08 pm
Location: Knoxville, TN

Postby SunWizard » Wed Jan 28, 2009 11:32 pm

Too much stuff in the way for pics to work, but a diagram or drawing in any shop manual is good.
YVORMV - Your veg. oil results may vary.
95 Dodge Cummins 4x4 SVO WVO conversion.
81 Mercedes 300D- stock and happy on V80/D20 blend.
Low fossil net zero house- 100% solar power and heat.
SunWizard
Site Admin
 
Posts: 1723
Joined: Mon Dec 11, 2006 2:53 pm
Location: N. Colorado

Postby knoxbiobenz » Thu Jan 29, 2009 8:45 pm

Sun,
I will look at the manual and see what I can learn. I think I have the Chilton one.
Can I just use hose clamps and a hose barb fitting for the 5 T's.

Zack Smith
1995 Dodge Cummins 2500, 194,xxx miles
2- Tank System Designed from Sun's
25,000 VO miles

1984 MB 300D- Sold
1983 MB 300TD- Sold
1980 MB 300SD- Sold
knoxbiobenz
 
Posts: 40
Joined: Thu Dec 25, 2008 9:08 pm
Location: Knoxville, TN

Postby SunWizard » Thu Jan 29, 2009 8:56 pm

knoxbiobenz wrote:Can I just use hose clamps and a hose barb fitting for the 5 T's.

Thats what I did, but there are not 5 tees, that was 5 cut lines I listed. I think there are 2 tees in my diagram.
YVORMV - Your veg. oil results may vary.
95 Dodge Cummins 4x4 SVO WVO conversion.
81 Mercedes 300D- stock and happy on V80/D20 blend.
Low fossil net zero house- 100% solar power and heat.
SunWizard
Site Admin
 
Posts: 1723
Joined: Mon Dec 11, 2006 2:53 pm
Location: N. Colorado

Postby knoxbiobenz » Thu Jan 29, 2009 9:07 pm

OK Wow,
Apparently I am even more confused that I originally thought I was.
I apologize for being so slow to pick this up Sun but I a am going to to keep trying to learn until I figure it out.

1- T in the fuel supply line that then goes to the valve
1- T in the fuel return line which designates the tank the fuel returns to.

From here I am a little fuzzy on how to maintain separate fuel lines up until I hit the IP.
I know that I have to cut and put a plug into one of the lines coming out of the stock fuel filter.

Where are the other cuts??
Thanks for the patience with me Sun.
Zack Smith
1995 Dodge Cummins 2500, 194,xxx miles
2- Tank System Designed from Sun's
25,000 VO miles

1984 MB 300D- Sold
1983 MB 300TD- Sold
1980 MB 300SD- Sold
knoxbiobenz
 
Posts: 40
Joined: Thu Dec 25, 2008 9:08 pm
Location: Knoxville, TN

Postby SunWizard » Fri Jan 30, 2009 4:34 pm

A diagram is the only way to go, a diagram says a thousand words (and I am not going to!). Look at mine in the thread I keep sending you to:
Image

If you can't understand that simple diagram, and find those 5 lines I listed to be cut, then you should be having someone else install your system.

1 tee is right before the IP, another is the injector drains discussed in that thread, another tee (with no cut) is attached to the inlet side of the tank selector valve VO side.

All the cuts are where I simply clamp a rubber hose on a steel line to connect everything.
YVORMV - Your veg. oil results may vary.
95 Dodge Cummins 4x4 SVO WVO conversion.
81 Mercedes 300D- stock and happy on V80/D20 blend.
Low fossil net zero house- 100% solar power and heat.
SunWizard
Site Admin
 
Posts: 1723
Joined: Mon Dec 11, 2006 2:53 pm
Location: N. Colorado

Postby knoxbiobenz » Fri Jan 30, 2009 10:55 pm

Yes Sun,
I know that I am in over my head but this is the only solution for me due to the fact that no one here in Knoxville knows anything about VO systems and even if they did they would charge an arm and a leg to install an inferior system.

OK, I think that I understand about the cuts, the direction of flow, and the sensors.
I am going to begin cutting tomorrow and we will see where we get.

Thanks for the help,
Zack Smith
1995 Dodge Cummins 2500, 194,xxx miles
2- Tank System Designed from Sun's
25,000 VO miles

1984 MB 300D- Sold
1983 MB 300TD- Sold
1980 MB 300SD- Sold
knoxbiobenz
 
Posts: 40
Joined: Thu Dec 25, 2008 9:08 pm
Location: Knoxville, TN

Postby knoxbiobenz » Sat Jan 31, 2009 11:33 pm

I have finally had the opportunity to sit down and really take my time and digest your very first post that you sent me with your original install Sun.
I want to apologize for making you explain things to me for the 2nd and sometimes 3rd time.

Also, thank you for your help and transparency in providing many of us with precise instructions at no cost at all. Really, it is very gracious of you to do this.

Ok, now to my question. I am planning on following your design to a "T". I do not see where I am supposed to cut into the line that goes to and from the lift pump. Is it the large fuel line (maybe like 1/2" or something) that is in front of the pump?? Or is it a steel line that is more difficult to see??

Thanks
1995 Dodge Cummins 2500, 194,xxx miles
2- Tank System Designed from Sun's
25,000 VO miles

1984 MB 300D- Sold
1983 MB 300TD- Sold
1980 MB 300SD- Sold
knoxbiobenz
 
Posts: 40
Joined: Thu Dec 25, 2008 9:08 pm
Location: Knoxville, TN

Postby SunWizard » Sun Feb 01, 2009 12:28 pm

The fuel lines are 3/8. Again I say, If you don't know what is where on your truck you should look at a diagram or pic from a shop manual.

1. find lift pump
2. find filter.
3. look for line connecting them.

etc.

If you can't do those 3 steps for each part, you are going to hopelessly mess up your truck. And words are never as good as a diagram, I will not explain each location with words.
YVORMV - Your veg. oil results may vary.
95 Dodge Cummins 4x4 SVO WVO conversion.
81 Mercedes 300D- stock and happy on V80/D20 blend.
Low fossil net zero house- 100% solar power and heat.
SunWizard
Site Admin
 
Posts: 1723
Joined: Mon Dec 11, 2006 2:53 pm
Location: N. Colorado


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