what's this all about?



Is this hole meant to be there? It's on the right hand side of the engine just below the dipsick pipe. It doesn't have any sharp edges but it looks a little wrong to me. I found it when cleaning muck and oil off the engine. I'm of the opinion that if its meant to be there then there should be a cover. otherwise i run the risk of stones, muck, oil and the likes getting in and knackering the fly's teeth and possible contaminating the clutch.
can't find any bits of metal anywhere ,all the teeth look ok for a motor that's getting close to 100,000 miles
















