Thanks for the reply, I have looked at the m20 site there. I have a later model, I am glad to hear they are all the same ha ha.
Is there no difference in the plunger gearbox mount plates? I grabbed the plates from a pile wich contained a plunger m20 and b31 plunger frame also, so it was a bit of a guess.
See the pictures, the bottom plate in the top pic has a curve along the lower edge. What is that for?
Also both of them have that bracket piece sticking out. I assume its for gearbox adjuster, but should it be on both sides?
Also is the additional metal stud for the stand spring?
Thanks for any help, cheers