When I rebuilt my B's engine I replaced the relief valve components.
I noticed that the wear on the piston seemed to be concentrated on one
side. Never did bother to figger out why.
> Just finished the repair. It was the valve. It had jammed so tightly that I
> had to use a thread tap to twist it out. The valve (piston-type) was badly
> scarred on one side. I guess I'll be changing the oil & filter again real
> soon. Used increasing grades of wet/dry sandpaper to deburr & polish it. Now
> re-installed all seems well.
> Norm Sippel
> '66 MGB
> But, - awfully scary moments.