Good evening, Warren. I'm afraid that for some reason I cannot access your video; also, although I did have several in period (my first Volvo was a 145E), it is a very long time since I had anything to do with a 1 - series car.
It did occur to me that your knocking might be the camshaft gear breaking down. That was not an uncommon fault in period (ask me how I know (!)) as it was a fibre gear bonded to a steel hub. If your car has recently been awoken after slumbering for the best part of 30 years, is it possible that the bond may be breaking down under load in protest?
A popular modification at the time in that event was to replace the fibre gear with a steel one, which, although slightly noisier mechanically, was much more reliable in service. I've no idea if they are still available, but I am sure that someone will be able to advise.
Regards, John.
__________________
Time flies like an arrow, fruit flies like a banana .....
|