Time to talk about rebuilding the fuel pump.
I have done a number of the AUA57 LCS square body pumps as used on Mark V, but this is my first of the earlier AUA25 Type L round body as used on my '38 SS.
It is stamped G12 on the sandwich plate, which I presume means the date is 1951 December.
I know I need the diaphragm with the 2-3/8" stem, not the 3" stem.
But Moss Motors offers three versions for MGTC et al.
stepped disc with ring
Anybody know what’s going on there? Why three?
Mine currently has the flat disc version, but there is a plastic spider rather than the 11 brass roller discs it originally would have had, so I imagine it has been rebuilt before now.