wvo in tank fuel pump psi and gph ????

[harky88]

Hi gang

I am installing a wvo kit in my l400 with a second tank.

Need to know what kind of pump to go in the tank, what psi and gph are recommended.

Or if anybody has used a pump successfully can recommend one to me?

[northriver]

The L400 does not use a lift pump in the diesel tank ... it relies on the injection pump for moving the fuel from the tank. This means that the injection pump is capable of moving the WVO on its own.

From what I read when setting mine up some people install a lift pump for their WVO and some do not ... I did not. The risk of not using a lift pump is that the heavy oil will cause the injection pump to work too hard and fail. The issues with a lift pump is not over specifying it (if it has too much flow it could also damage the injection pump?) and increased maintenance (one more thing that could fail). I do not remember what pumps people were using but it is discussed somewhere on the forum ... I read about it in the last two weeks!

I did install a 1/2" diameter fuel line from the tank to the WVO filter in the engine compartment. The idea being that the larger diameter would make life easier on the pump ... not sure if this was necessary or not but it is done. I also bundled the fuel line with the coolant lines running to the WVO tank (tank is heated). Hopefully, the fuel line will pickup heat from the coolant line and make the oil flow better.

I do not have much experience yet but the fuel delivery seems to be working well. Only time will tell if I am overworking the pump ...

[after oil]

first try without a pump, if it works great, youre golden. i have done conversions with and without, both work. although the one with i killed two injection pumps, but why exactly is inconclusive. do yur best to ensure that all the connections inside the tank are leak proof and diesel proof, or you will be dropping your tank and lookng inside and so on

[after oil]

oh, it was a 7 psi 12v inline piston pump ~$70 any auto parts store