S
snowman
Guest
Steve,
How deep are you boring, and what diameter?
How deep are you boring, and what diameter?
Lapping cylinders
- Thread starter SignalFailure
- Start date
Help Support Home Model Engine Machinist Forum:
Cedge
Well-Known Member
- Joined
- Jul 12, 2007
- Messages
- 1,730
- Reaction score
- 29
Snowman
The bore dia. is 13/16" and 1 5/8 in length. The problem I was having was due to boring bar flex and a shallow attack angle while retracting the tool. The cutting edge was climbing over the cut and creating a taper. I didn't spot this as being the problem until after I'd bored the cylinder to diameter. The lap corrected the problem much more quickly than I would have imagined and the piston fits beautifully. This morning I used a similar process to "line bore" the gland end to a friction free fit for the piston rod.
Steve
The bore dia. is 13/16" and 1 5/8 in length. The problem I was having was due to boring bar flex and a shallow attack angle while retracting the tool. The cutting edge was climbing over the cut and creating a taper. I didn't spot this as being the problem until after I'd bored the cylinder to diameter. The lap corrected the problem much more quickly than I would have imagined and the piston fits beautifully. This morning I used a similar process to "line bore" the gland end to a friction free fit for the piston rod.
Steve
Similar threads
