Join Date: Oct 2004
Feedback Score: 0 reviews
Re: 1996 Powerstroke WVO idea
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Well it could be made to work, though you are removing some of the redundancies that FN74 has with his setup where the WVO never flows though a single point of failure that is required for running on diesel. (Okay it goes though the injectors, but there are eight of them.)
The primary difference is that you are introducing the fuel pressure regulator and fuel pump volumes into the required purge cycle time and you would also want to sequence the valves to not contaminate the diesel with WVO.
So to purge you would want to delay switching the tank return while diesel is filling the fuel pump, head rails and the regulator, once these items are purged then switch the return to the diesel tank.
That said you would avoid the problem with the engine driven pump peaking and over powering the WVO side that I have experienced in the past, though I think I have solved that with adding a third check valve on the WVO tank feed line.
Your setup would also require a heated filter to boost the temp of the WVO, in FN74’s system the WVO is recirculated though the heads and is quickly warmed to the desired temp by the thermal mass of the heads.
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Thanks didn't really consider the 2 seperate systems except where it goes thru the head, but that would be more of what I would want. How is yours plumbed to facilitate a totally 2 seprate system. Even using the existing filter and pump.
I am already used to the delay switching for purging, that system is on my MB. I would like an automated system but for now budget restraints allow that not to happen
Heated filter was in the plan.
I didn't know FN74 did a return loop system. I am not familiar with the way FN74 plumbed in your system, That is why I am seeking help here. My MB is closed loop but have had some problems with that.
I am very close to ordering all that I need. But want a system that will work and not put me stranded on the side of the road.If FN74 was still around I would be ordering from him. But it seems like you have the only pre '99 that has his type of system.
1996 F350 PSD, CC, DRW, 2WD, Custom conversion, 3" downpipe, BDP stage 1 injectors, BDP 6 pos chip. Autometer gauges. Electric fuel system. CONVERTED to run on Veggie FN74 system modified.
2003 Toyota Matrix
2001 VW NewBeetle GSL TDI
1954 GMC 5 window pickup. in the rebuilding stage, it might even get a DIESEL