I have all but finished the jig to make a rigid subframe for my Plunger frame but I'm having trouble with the lower engine mount location.
The main frame lugs are aroung 3/16" out of alignment, I'm pretty sure I've got the dimensions right to the drawing for the jig. Is this the norm - that the two parts of frame are pulled together to fit?
I must admit that the main spine/seat tube wasn't straight - it was kinked just under the rear engine lug so I warmed that up and straightened it - surely thay weren't meant to be like that were they?