Originally Posted by ziggy12345
Ed
As the liner is tapered towards the top it would be inpossible to hone the liner with a honing tool along its axis, it would have to be done radially. This will give the liner scratches in the radial direction and this would make the wear rate worse!
If the engine was ran in noramlly the surface lines would run in the same direction as the movement of the piston so dont see how a honed liner could out perform a ran in liner.
When I was at college we called lapping the process to make a smooth FLAT surface and HONING to make a smooth BORE
Cheers
You are right about honning make smoth bore. Honning is dicent process to make pricision liners, barrels etc for mass production and it has pretty low cost. But surface finish after honning is not the best. Grinding is much beter, but defenetly much more expencive specialy on mass production, Lapping gives really fine surface, but posability to make oval is really great and it is required very good skills to do that and a lot of patients.
Edward