Why did the nozzle clog?

The clogged nozzle mystery. I discussed this with the refiner/seller. His thoughts include:

1. The adhesive in the cardboard spin on oil filter (10 micron unit) may dissolve in the B100, then clog the nozzle.

2. The epoxy coating in the spin on filter can may dissolve in the B100, turning into shellac in the nozzle after shutdown, clogging the nozzle.

3. The refinery filters are not as good as they think they are. The refiner is in the process now of particle size testing and filter upgrades.

One easy solution is to put a bigger nozzle in and lower the pressure. I do not like this solution. The current scientific plan between the refiner and me is to keep the nozzle size the same (0.65 GPH, 60 degree, semi-solid) and see if the first nozzle clog was a fluke, or if it happens again. The refiner will also try to rig up an experiment with the filter and a pump. He will run the B100 through the filter for days on end, then compare that oil with un-circulated oil in his "GC." If you are cool like me, you know GC means gas chromatograph. If you don't know what a GC is, look it up on wiker-pedier. We'll find out if the filter is causing nozzle clogs.

Here are some pictures to enjoy.

This the combustion head after just a few weeks of running. Afterdrip-caused (in my opinion).

Another picture of the combustion head with coke.

Here is the combustion head after cleaning (the chemist/refiner/retailer) suggested acetone; it worked great.

Another shot of the cleaned head.

Here is complete assembly, ready to go back in the boiler. Those of you in the know will spot the oil line heater.