It's a long time since i had a 140 (30+years
) but another vote for checking you have the calipers on the correct sides.
Also, if you have multi-piston calipers, make sure you use the correct bleeding sequence!
Another useful tip is to remove one caliper mounting bolt so the calipers can be swivelled up so the bleed nipples are uppermost. Use a block of wood to prevent the pistons popping out during bleeding.
When you consider air rises to the top of a fluid, it's blindingly obvious but it took me a long time to realise this simple trick.
Always had spongey brakes on my Rover 827 until i realised, removed the lower caliper bolt and lifted the caliper so the bleed nipple was at its highest possible point, re-bled and job done!
