wmo causing metering valve to stick?

My personal thoughts on WMO usage.
Settle,
Pour 1 gallon gasoline.
Pour 4 gallons WMO on top.
Settle at least 3 weeks.
Pour off 4 gallons for fuel. Scrap bottom 1 gallon.
Mix with diesel ( at least 15percent).
Use above 50 degree weather.
Enjoy.


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Macrobb said:

It's usually under a red/gray "do not tamper" cover.
Loosen the jam nut/seal nut on that stud, and use an allen wrench to screw in the "guide stud" as far as you can. Tighten the seal nut again.

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Is this the fuel adjustment screw? that seems like a good workaround

Macrobb said:

One 'workaround' for sticky metering valve / dying letting off the throttle is to find the "guide stud" at the back of the IP. It's usually under a red/gray "do not tamper" cover.
Loosen the jam nut/seal nut on that stud, and use an allen wrench to screw in the "guide stud" as far as you can. Tighten the seal nut again.

This will increase the "governor response" basically - it'll make it more sensitive, and also means that the governor picks up earlier and won't let it die nearly so easily.
Idle will also be higher, you may have to adjust.

Again, this is just a workaround - it probably won't drive quite right(take some getting used to), but it'll certainly get you down the road.

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Someone’s been reading my tuning guide

Christian9112 said:

Is this the fuel adjustment screw? that seems like a good workaround

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No, this is the guide stud that adjusts tension on the minimax governor, it’s a fine adjustment for governor droop amongst other things. If the truck doesn’t have idling issues when running on regular diesel then you don’t really need to adjust this, it’s just the metering valve is physically sticking in its bore with the thicker fluid. I agree with the others that improving your filtration and mixing would likely really help, sounds like it’s still too thick of a solution.

Waste oils burn much slower and need more time/ help with ignition than no. 2. Advancing timing to a degree will help burn oil much cleaner and more efficiently.

Notice how much quieter it is on WMO? Thats because the combustion event is retarded from insufficient time.

I dont mean to speak blasphemy being on an IDI topic, but my VE 12v is almost smokeless on 60% WMO, 20% RUG, 20% diesel. My static timing is advanced 7 degrees over stock (of course IDI's will burn GP's if timing is much more than 10 btdc, if Im not mistaken).
When my timing was only 3 degrees advanced from stock, the slight haze on waste oil wouldnt quite clear up.
Youre looking for some degree of timing to restore the lost clatter when running waste oil. Though that timing level will be too advanced on straight diesel fuel.