WVO install question: Injector pump lines

[dpd]

Hello WVO-ers,

I am finishing up my veggie kit install, and I'm not sure what most people have done for this:

Going from the IP return banjo bolt, to the 3-way return valve, I have to go up to a 3/8 hose diameter. What is the internal diameter of the braided hose that's on there now? 1/4 or 5/16? And how did you guys get to the 3/8 line? A simple brass barbed reducer/coupler? And where did you find it?

Thanks! It is an exciting time now to be so close to firing it up... but I think at this stage, working with the IP lines I should be careful to use the right gear.
David

[after oil]

return isnt under pressure and cannot leak air into the system, afaik... i screwed a hose nipple same size as hose in to my return valve. better to not use brass with WVO. try steel.

[delicat]

Hi David,

Not sure where you're from, doesn't say but if from Vancouver area try Fairview Fitting in Burnaby, best place in town to get all you need. Plastic should work as well shouldn't it?
http://www.fairviewfittings.com/

If you're near-by and need some oil drop by my place I'll give you some free to get you started.

Cheers,
David

[mrdueck]

I've installed a number of systems but not on a Delica...yet. To deal with hose size changes I've done the backyard quick fix and drilled out a smaller hose to a larger size (after 3 yrs. it is still holding) and I have also gone to NAPA, LORDCO, or just about any auto specialized store and they have plastic step reducers. All you do is take your side cutters and cut it to the right diameter. The brass option is basically the same thing, only more costly and can be more difficult to find the right size conversion/combo.

Good luck,

[after oil]

i get most of my gear from a plumbing store, but occasionally i go to a store that supplies truckers, and the mill, with automotive and hose/hydraulics parts

[dpd]

Thanks guys!

I ended up using brass fittings. The best solution I could find at the plumbing store was a 1/4" barb to 1/4" NPT m, and 1/4" NPT f to 3/8" barb, with high temp thread locker, and injector hose and injector clamps.

After Oil: I knew not to use copper, but hadn't heard of brass being a problem! Now after a bit of googling I see there's some controversy. Plantdrive equipped my turbofyner with brass fittings, and it is a used one with a lot of miles on it and no sign of corrosion so far. So I figured they would be fine... I'll keep an eye on the brass then, thanks for the heads up.

Delicat and MrDueck: Thanks for the offer & advice... I am in Edmonton and WVO is not a problem. I've been collecting from 2 sushi restaurants under the same owner and they change their oil twice a week, I'm pulling almost 300L/week, beauty canola put right back into the buckets for me. Then it all goes through a Raw Power centrifuge in 55 gallon batches.

I have too much oil to deal with already, 2000 litres in just 3 months of collecting, so I bought a Kuma oil stove from Plantdrive to burn it this winter. I'm looking forward to firing it up, and cutting down my gas bill this winter, but I have another WVO conversion to do :) I hope the Kuma works on WVO. Ed Beggs is optimistic, but I'll have to preheat, and if that doesn't work I'll end up making biodiesel.

[PlantDrive]

RE: adaptors, we send 5/16" to 3/8" adaptors out with the 2T-SD kits, and they work with the return lines on the Japanese and other small vehicle return lines, lube the fittings with Canola oil and you can get the returns on there.
All fittings are a lot easier to work with if you put some vegoil on them then work the hose on.

The newer VM2 filter uses ORB fittings, and they are steel. You have an old version, which shipped with either plastic or brass NPT fittings depending on when they were purchased. Plastic is cheap and holds up ok. Brass costs more and allows you to tighten the fittings more easily and not strip off the hex.

Never had a problem with brass fittings. Oil will be in very limited contact in terms of surface and in terms of duration of contact with the fittings as it flows past. Least of your worries. WVO quality would be much more of a concern, really. Maybe more a concern re materials used is copper loops in tanks, where you have a quantity of vegoil heated over and over, lots of heat, lots of contact with the copper, lots of air exposure, and potentially oil sitting in the tank for a while if not driving. That'll accelerate degradation of the oil, copper is most often cited as the catalyst that accelerates degradation of veg oil.