Im a little confused. I have read a thread or two on crowning but all are different some of the tools leave me with questions.
The first article they used a hand reamer(from midway/brownells) that reamed the 11 deg crown and I want to say that was all they did.
Now I have seen the same type of piloted reamer that is basically a 9odeg piloted countersinkcalled a 45), is this needed? I notice that on most factory crowns they do look countersunk just a hair.
Next is laps, I have seen 2 styles, one with a round ball on the end and a cone shaped portion that i would guess is there the lapping takes place. They the other style is just a straight lap with a handle, but I dont see any surface to lap the crown. Is there any pictoral tutorials on lapping a crown? Also midways info on the laps say to ocsilate not rotate/spin. I was thinking if trying to lap a crown with one of the ball type laps on a flex shaft with a drillso the lap would stap centered and lap the crown equally, is this not correct?
The first article they used a hand reamer(from midway/brownells) that reamed the 11 deg crown and I want to say that was all they did.
Now I have seen the same type of piloted reamer that is basically a 9odeg piloted countersinkcalled a 45), is this needed? I notice that on most factory crowns they do look countersunk just a hair.
Next is laps, I have seen 2 styles, one with a round ball on the end and a cone shaped portion that i would guess is there the lapping takes place. They the other style is just a straight lap with a handle, but I dont see any surface to lap the crown. Is there any pictoral tutorials on lapping a crown? Also midways info on the laps say to ocsilate not rotate/spin. I was thinking if trying to lap a crown with one of the ball type laps on a flex shaft with a drillso the lap would stap centered and lap the crown equally, is this not correct?