So my 1988 1275 engine was running absolutely perfectly until a couple of days ago when, whilst out for a drive and stopped at traffic lights it developed a knocking noise. I returned home and had a look/listen. I thought it was coming from my alternator so after a bit of research on here I found someone had a similar problem where it was the bearings. I sprayed a bit of WD40 into the pulleys and the noise seemed to quieten for a few seconds and then it would return. This made me think it was the alternator and it looked a bit rough around the edges anyway so I bought a new one and have fitted it this afternoon.
Started her up and she is still knocking. The noise is 100% coming from that area (bottom right as you look at the engine bay). I have had a plastic screw driver down there for a listen and still can’t pin point where the knock is coming from.
The knock doesn't get loader with revs or whilst accelerating it is just a steady knock.
Does anyone have any suggestions or has anyone had this problem before? any help would be appreciated.
Also...is anyone around the North Yorkshire area? I haven't seen many mini's on my travels...