Injector Teardown & Inspection after 8k on WVO

[JOAT]

I pulled injector #3 over the weekend to do a teardown and inspect for any signs of corosion or pitting that might be WVO related. Considering this injector could have as much as 330k on it, it looked pretty good. Some noticeable polishing on the wear surfaces, but the piston and plunger felt tight in their bores. No real junk or odd wear noticed, tho outside of the injector above the cup was some gunk that on close inspection appeared to be fiber from a fuel filter. Kind of a fine lint. None in the injector itself. Metal where the fuel flowed under high pressure was tan colored but not rough or pitted that I could tell.

The outside of the injector looks normal, other than it has obsolete o-rings, so I did all o-rings on that side while it was apart.

Stop plates and check plate

Amplifier, left 1/2 contacts oil, right contacts fuel

Plunger and Barrel

Nozzle valve

 

[CHPMustang]

Excellent teardown there Doctor

is that 8k on 100% WVO or you running a fulltime blend?

 

[JOAT]

I run heated 100% WVO after the engine warms up, mostly highway, 60+ miles at a stretch. Converted about 15-20k ago. About 6k of the WVO was in the last 10k. About half my WVO is liquid, half partly hydrogenated FWIW.

 

[CHPMustang]

Good info there,if I had the room for an additional tank on the Excursion I'd probably run the same heated setup but right now I'm limited to the Bio-D option if the processor ever gets completed-popcorn -popcorn -popcorn

I'm still keeping an eye out for pickup to do WVO with

 

[JOAT]

My filtration and oil quality question came up "over there", so I'll relist here for the curious

My filtration varies due to oil variations (hydro vs non). I add extra heating, course screening and 400 micron steps if it's really nasty. About half my oil is nasty hydro with grill grease and lots of crud, other half clean Asian and Mexican restaurant oil.

-Basically, oil is strained heated or cold depending on if it will pass a strainer.
-From the strainer it goes to a drum with a 2000 watt 110v water heater element. This oil is heated to about 140*F. After it cools to about 125-130, everything above 6 inches goes thru a 200 micron filter bag to another drum.
-After this drum is full, I heat again (another 2k watt 110v element)vto 125-130, and pump everything above 4 inches to a drum in the attic, where it gravity flows thru an STP truck air filter (courtesy FN74's recomendation) to another drum,
-and then flows thru a final filter, currently an FS1000 (which sits in a water filled crock pot to keep the temp up, $3 at wally world).

Testing shows no sputter, but some to moderate bubble formation using Dana Linscotts sputter test. Incidentally the heat from the 110v elements is intense enough to flash alot of the moisture that circulates past them into steam, which rises off the top.

In the truck I have another FS1000 pre-pump.

 

[JOAT]

Good info there,if I had the room for an additional tank on the Excursion I'd probably run the same heated setup but right now I'm limited to the Bio-D option if the processor ever gets completed-popcorn -popcorn -popcorn

I'm still keeping an eye out for pickup to do WVO with

Yeh, that big X gives you surprisingly little room to work with. I've heard there are some custom WVO tanks being developed tho. I'll let you know if I hear any more on that

 

[CHPMustang]

Yeh, that big X gives you surprisingly little room to work with. I've heard there are some custom WVO tanks being developed tho. I'll let you know if I hear any more on that

Definitely keep me in the loop!

 

[KansasDiesel]

Good info there,if I had the room for an additional tank on the Excursion I'd probably run the same heated setup but right now I'm limited to the Bio-D option if the processor ever gets completed-popcorn -popcorn -popcorn

I'm still keeping an eye out for pickup to do WVO with

CHP Jason at www.vegistroke.com has put one of his kits on an Excursion, check out his site he has pics of it....

You too can join the WVO group....

 

[CHPMustang]

Thanks for the hookup there KD! I may look into it and see what all is involved with going straight up WVO

 

[JOAT]

CHP Jason at www.vegistroke.com has put one of his kits on an Excursion, check out his site he has pics of it....

You too can join the WVO group....

Interesting how FN did that.
You know, he's getting some publicity here, maybe he should join up and add SuperDutyDiesel.com to his links too