Upshur build

[Harglo]

Planning going with this engine from Engine Model Builder. Given many of you have buillt this from other plans. What changes would you recomend. Ive seen the corrections from issue 8. (plans should have been proff read before in print) Other plans which may not differ or did they? Well be using 14.5 Vs the 20 degree cutters been told the gear center distance will be the same do you argee?
coments?
Harvey

 

[gbritnell]

Gear center distance will be identical just the pressure angle changes.