Austin 7 Trials Special

[Reckless Rat]

Running in your Seven basically means taking it steady until the engine is warm, not letting the engine 'lug' in a high gear and resisting the temptation to thrash the nuts off it. Just use common sense, but as already suggested change the oil several times. When my engine was recently rebuilt with rebore and pistons I changed the oil at 100 miles, 300 miles 500 miles 750 miles and 1000 miles. I recommend changing the oil at 1000 mile intervals once run in. Just use supermarket 20W-50. You'll be amazed at how much muck comes out.

Whatever you do don't just start it up and leave it ticking over. That will just glaze up the bores and affect oil consumption. Get in it and drive it.