I left my `51 A7 for a few weeks, so before starting I drained the sump. It had approx 100mls in it. I took it out for a good run and as soon as I stopped at home I redrained the sump to check just how much was in it, so I could compare the two.Out come 100mls again, so its not wet sumping as I thought but is that a normal amount to have in the sump ??