Woosh....what is that noise??
Squeeking rattle at engine revolution related.
Gently, at low revs back home (2 miles away)........Damn dynamo nut has disappeared, making pulley and fan flop about! Washer lying on chassis rail!
I have had a 'noise from that area and as the dynamo is 'new' I thought my water pump was on the way. Pleased it happened really because after replacing the nut, as all is now sweet and quiet :)
Anyone got a spare 9/16 nut ( I've used my last one!) and do you know what to torque it too? Do I just gently jam the fan blades to tighten?