sorry, I know this has been discussed; I spent time searching but can't find a clear answer.
I know that the timing can/should be adjusted based on fuel type, and I thought I had succeeded at this, but I think I need to work harder at it.
One problem that I believe I'm creating is that I've always bought into the idea of starting and stopping on store bought diesel, and then switching over to WVO. I've actually never succeeded at starting on WVO, perhaps due to my timing issue, or other variables.
Still, I'm struggling with lots of carbon. So I figure I need to tweak the timing... but what's the testing process? How many turns on that nut under the pump per test? Like, do I set the timing different a few degrees, run for 3 hours, pull the injector, see carbon, turn the nut (5 times?) run for 3 hours, pull the injector, look for carbon, over and over?
Or am I just not switching back over to diesel soon enough? Does it need to be run on diesel to scrub it up for 30 minutes or something?
Obviously, I'm flailing around here.