I stop at the ATM on the way home. Start the engine and get a horrible rattling noise. Ok, I've got a lazy cam follower but that quietens down after about five seconds. This is something else! I'm thinking maybe the timing chain tensioner has gone and the chain is hitting the casing. So I drive the quarter mile home with clenched teeth. The car drives absolutely fine. No loss of power and it changes gear fine(5 speed auto). But I have the rattle and there is a definite whir like a bearing picking up. I put it into reverse to back into the drive and the rattle and whirring stops. I stop the engine and restart it. No problems. Its like it never happened. But it did and I dont expect thats an end to it. Not much to go on I know but any suggestions appreciated

PS My windscreen wipers work fine. And I thought Becker was a tennis player :-)