should you grind flat spot for drive dog??

[6sHyper]

Just installed a new one piece flex cable system in my apparition, this has a 3/16" smooth round stub and there is no flat spot for the drive dog, should i be grinding an area for the drive dog set screw or not?? thanks.

[Doby]

yes

[carlcisneros]

OH, HELL YES!!!!!!!!!!!!

other wise, it is watch the shaft go round and round and the prop staying in one place.

Been there, done that MANY years ago. LOL

[the savy fluxer]

im going to have the same issue next week, when we grind the flat spot do we solder that spot or just leave it bare and how much of a flat spot do we grind?
thanks for your input

[6sHyper]

I grinded a small flat spot with my tiny dremel bit, then i finished it with the thin edge of a file so its perfectly square and flat, worked great its a 3mm flat spot.

[the savy fluxer]

perfect thanks man.

[Grimracer]

I like to make a drill point in the shaft for the set screw to fall into.

Its a tic stronger then a flat spot.. but a flat spot works too!

Grim