Pressure build up in fuel tanks anyone?
I experienced some some starting problems over the last couple of days - especially when cold. Put some diesel in and when I released the cap there was a massive blast of air/fumes that came out. Since then no more starting trouble. I assumed that the spring mechanism in the cap is a pressure release valve of sorts, so I flushed it out with brake cleaner and agitated the spring somewhat.
Are there other possibilities in causing this problem, has anyone experienced/cured it?