I'm adding 100:1 2 stroke oil to the fuel, which in the "States" has lowered lubricity , since the sulfur and other goodies was taken out. California diesel is now closer to jet fuel (no lubricity) than diesel. And the fuel pump was making a groaning noise till I got some nice bio-diesel into it, but the only local vendor is out of business and I can only get pump diesel. BD-20 is avaib at a card-loc pump station, but it's a pain to get, and has road tax, so I do the pain next door and get red diesel, save $1 gal road tax, and add some 2-stroke oil.
I don't think it is coming from a sticky pump plunger, does not seem to be from that area, and it appears to vary with load. I'm resigned to pulling the head when the weather clears, and after I get a calibrated injector, and we'll see if it's carbon in there, or if I get to keep looking.
Every time I look at the weather forecast
http://www.wunderground.com/cgi-bin/findweather/getForecast?query=95490they've added an inch of rain. So we are up to over 8 inches, 6" in the first 2 days, and then 2 more in the next 2 days. On flat land, it would be nothing, but in the mountains, we get some great storm surges
I have a 48" culvert that I have never seen more than 18" of water in it, that FILLED and was over the road in the last 4" storm.
Water and fuel tanks are full, vehicles are staged along the roads, pulled the spillway boards, and opened the 4" mid-drain in the pond, so I should have enough freeboard to not overtop the berm. And woe to the weather forecaster if it's an "alarmist" forecast, and not realistic, because I'm dumping a lot of water tonight on their say-so, in a drought.