Morris Minor Owners Club

Following the advice given here I did "deglaze" the bores (using strips of emery cloth in a drill) and discovered more marks in the bore than I saw at first, specifically some radial marks, which I think must have come from corrosion between piston rings and bore at some time in the past w...

Thanks, I thoght it would be logical to have some connection but had no idea how to do it.

As above, check for crankshaft throw fore and aft movement, also check the bores, they may need to be re-bored to remove damage. Yes it does look like that piston has certainly been flopping about in the bore. What is the condition of the big end bearings and are any of the other pistons damaged? L...

I believe I have at last found the cause of the knocking sound which my 1958 Minior produces under load, not on the overrun. I have removed the pistons and found 20201111_102413.jpg scoring marks on nos. 3 and 4 together with distortion on the piston skirt, which is able to slop about 0.5 mm from si...

Firstly, thanks for the many, very prompt replies! @Murryminor: I replaced the main bearings as the rear main showed signs of erosion, the others looked OK . I did the job slowly and carefully following the original BMC manual, hopefully also correctly. I had the crankshaft checked professionally. I...

I have a 1958 Minor which I imported to Austria 3 years ago. I had to do some work to fix a oil leak from the rear of the engine to pass the MOT equivalent. This involved new main bearings and big ends (crankshaft was perfectly OK), and (probably the main cause) re-brazing the cover for the oil pump...