Project Red Cent

F350camper

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IMO, I would be cutting the drip rail completely off.
and welding 3/8 or less round rod in its place...

Ha! Yeah, that'd be sweet. I'm too much of a hack tho. I'd find a way to make one hell of a mess of that.
 

F350camper

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Small wire wheel on a drill cleaned this up pretty nice. Passenger side looks pretty much the same. Man I dont know if this stuff was flexible when it rolled off the line, but today 30 years later it came out like tile grout.

I laid some rust converter in there on a couple of spots for good measure. Next will be primer, then seam sealer, then paint.
 

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I'm sure you'll be fine. If you do end up with issues years down the road, its nice that the whole job is contained within the drip rail. Not like you are dealing with the middle of a hood or something.
 

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Loading up the truck with veggy tonight to make the 400 mile trek to roadkill zip tie drags in the morning. Like I always say, here's to hoping this bucket of bolts holds together!
 

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Made it home today. 850 miles or so round trip. Truck performed flawlessly. Burned veggy the whole way there and back. It was a great time hanging out with the Roadkill guys, not just the hosts but the fans too.
Freiburger and Finnegan and Dulcich are the real deal. Some of the nicest folks you'd ever meet. They would all fit right in at one of our rallies. LOL They were constantly surrounded by fans asking questions an saying hello, but they never came off as elitist or in any kind of hurry. Fun trip, really glad I went. Saw some cool cars and met some cool people
 

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Welp, the trip to the rally in KY destroyed at least one of my ******* switching valves in my WVO system. They say not to use them for hot veggie, and I found out why. The OH trip followed by the KY trip was more continuous hours than I have ever put on the system and the hot oil was just too much for these cheap valves.

Anyway, I am thinking through some re-designs, with a few thoughts in mind. In the mean time I have a question for you guys though.

As part of my system beef up, I am going to switch to this piston based mechanical lift pump, see this video for how it works if you are not familiar
(he gets into it at about the 3 min mark)
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So my question is what do you think is a bigger mistake:
  1. Set my system up so this lift pump never sees any veggie/WMO/other waste oil, only diesel, but while in veggie mode the output is completely closed off, possibly for hours on end. OR
  2. Set my system up so this lift pump is exposed to hot veggie/various waste oils while in veggie mode, possibly for hours on end, but its always flowing fuel as intended.
 

subway

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I would not close off the output of the lift pump. If it can not flow I it's going to try to pump until something gives.

The pump looks like a very robust pump that could move some WVO. The big problem I could see is how all the rubber parts would react.

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So what about going to an electric gear drive (positive displacement) pump? They make them in mag drive so all the wetted parts can be Teflon or stainless steel. No seals to leak.
 

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I would not close off the output of the lift pump. If it can not flow I it's going to try to pump until something gives.


this is what I was wondering, but doesnt it seem like if the flow is blocked, the spring just wouldnt push the plunger back to move the fuel?
 
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