Hi Chris, wow!, thanks for the great info. Now I can see the triangular section at dimension 'S'. So there is some vehicle that uses the same type of Tracta drive as the Champ but much bigger. Thanks again. Can anyone suggest a vehicle? or look in their parts book for bigger mv's? It's a shame to waste these seals, and, if I sell them, I will donate half to an mv charity.
On Champ Tracta housing seals, the book gives, LV6/MT1/GO/B15081, 4 3\4" x 5.449 x
1\2". As far as I know these are no longer available, are these seals in the GACO book? - one mv spares dealer is selling standard shaft seals with the wrong internal profile and the wrong outer diameter as Champ Tracta housing seals, be warned.
If genuine seals are no longer available I can let anyone know where to get repros, and correctly made ones.