what can i replace or get new for the little clamps on the injectors?? also what is best used for lines at the injectors....

ive hooked up the WVO systemt but it puts about 7 psi on the return and causes a small leak at two injector return lines cause the little clamps are bent and hardly doing anything.....the other six are fine

Just need to know what a good solution to clamp down the lines and what line to replace these with

Thanks

Joe

I know you can get a kit that has all of the return lines. just a thought

You shouldn't have nearly that much pressure in the return lines. They need to be pretty free flowing. How is your WVO system plumbed?

it would kinda be like version 1 of this page

http://www.frybrid.com/forum/showthread.php?t=50

but i am running a 6 way and the diesel return goes to the tank.....so when running diesel there is no pressure on the return...only on WVO

OReilleys here happened to have a set of return line clips on stock. I was quite surprised since it seems so extremely unlikely for a parts store to have them. Maybe you're lucky and can find them in a store; maybe they can get some for you.

Kennedy sells a return line kit with lines that don't need clips. Other supporting vendors may have lines too, and if they do, they should have clips unless their lines don't need them, either.

but i am running a 6 way and the diesel return goes to the tank.....so when running diesel there is no pressure on the return...only on WVO

You could run another return for the WVO.

There must be some good reason not to run the return back into the feed with Diesel, or the manufacturers won't do that. Does anyone know why?

You could run another return for the WVO.



Im considering that but i think they do that for winter time....WVO gets solid when cold.....

for summer i could run another return to get me going for now.....but is like to stop the leak anyway....it could be leaking with no pressure too....just havent seen it......if i barely touch the little clamp i see oil running out and donw the injector.....

Yeah, it makes bleeding the system a real pain. Essentially it's not as forgiving as having two separate lines.

You can get those clamps at the auto parts stores around here... A pack costs like $1.50.

Again, there shouldn't be any pressure in those lines. The return needs to T into the feed line BEFORE the fuel pump, so there shouldn't be any pressure...

I wonder if it's because WVO is thicker when cold. It shouldn't be, but it is a possibility.

the reason you don't run the return back in with the diesel because you would overfill the tank then. fuel going from one side though the engine and back into the other.

well ya...id run the return to the WVO tank....

i have electric pumps at each tank...one for diesel and one for WVO and each comes on when selected by the 6-way.

They put out 3-7 psi so it would always be under some pressure esp at idle if plumbed like the diagram.

have you checked the return line on the WVO tank. It might be plugged or kinked somewhere. simple thing to check.

You're never going to get this thing to run right with pressure to the return lines. Not only will you get leaks, you'll get lots of black smoke and very poor performance, if indeed, it will run...

theres no return to the WVO tank.....its looped as in diagram...

and this return pressure is what ived wondered the whole time yet every diagram shows it looped like that......

Yeah, but notice that those diagrams don't show a lift pump. With any sort of a lift or transfer pump factored in you've got to have your return line T into the suction side of the pump...

I think I understand. your running 2 tanks. 1 with WVO and 1 with diesel. you are using a 2 position valve, 1 side for each and then sharing the main lines. so far so good? each tank has it own pump and the pump(s) are controlled by the valve switch. you have a supply and return for each tank.

OR

your running the WVO in the main line and the return goes back to the diesel tank.

Yes, that's the idea, two seperate systems complete with a supply and a return line for each, going from/to the respective tank. Problem is the heating --- two pumps make it easier because you can pump the WVO through the heater while driving on Diesel and then switch when it's warmed up, but when it's cold enough for the WVO to become solid, you'd also have to heat the tank and the fuel lines before you start pumping.

The alternative for the dedicated return line is to run it to the suction side of the pump, not the pressure side, like HS said. However, you'd still have to solve the heating problem.

Having two independent systems has the advantage of increased reliability, and it enables you to use different lift pumps so that you can use a pump that's specialized for the particular type of fuel it's supposed to move. Along with that, you can use different fuel filters for each system: for increased reliability and shorter purging times.

ya i think ill just run a return all the way to the tank for WVO and its already heated tank ill just have to keep the return hot for winter use.

Oh.....i guess my setup resembles version 3 on that page.......i have a diesel return to tank but not a WVO return....just loops back in.

Joe

I just converted my '95 burb to WVO two tank and have a looped return as well. I agree that the WVO looped return should T into the intake side of the WVO fuel pump. I messed up and forgot about pressure and when I switched to the purge cycle (diesel and looped till the WVO was thinned/used) I blew the 13 yr old 184,000 mile return lines. I am replacing them with cloth braid covered mercedes diesel return line. It seems MUCH stronger.