The rattle is more noticeable when hot. That said, I'm recovering from a back operation due to one of my many once youthful stupidities. So crawling under the car will have to wait for warmer weather. I'm also able to stop on my way home with the tractor for groceries and going to the gym. Last year I probably drove the car once a week.
Also on commercial diesel motors you can sneak out the main bearings by turning over the crank while running a shank through the oil hole. Will a similar technique work with the Volvo?
Should I also consider replacing the oil pump?
If I'm not up to repairing it in the spring I would like it to go to a good home. As I said it would be for the price I would get for scrap including the remnants of my 89 240 wagon haunting the shelves of my garage. So for those interested I will post it here when I make that decision.