[TheForge] Krause/Nazel type air hammer

[Peter Fels and Phoebe Palmer]

At 01:52 AM 12/7/02, you wrote:

Jeff; I don't think that lapping and honing are the same thing at all. 
Lapping grinds one component of the valve with it's mate directly and 
automatically.
Steve, Could be wrong here, but a tight and precise valve is important to 
both efficiency and control. Plastic seals..well, it would take a number of 
them..much harder than lapping the valve.
Pete




>Ok...
>
>    Now I see where I'm missing the thread here.  Lapping is
>specifically using one part and a compound to make a perfect fit with
>it's mate, as in fitting engine valves.
>     What I am starting to realize is that, apparently, we are speaking
>of  "honing" and yes... a brake cylinder hone is hard to beat for
>smoothing small bores.  It's also easy to make a bore out of round or
>tapered with one.  Use lots of oil to keep the hone flushed clean ,
>don't get in a hurry and keep it moving longitudinally in the bore.
>It's easy to hang one of these up at any sort of speed and the stones
>will clog up in a heart beat if you don't keep them flushed.   Sorry
>for the misunderstanding.
>
>    Jeff   ><>
>
>
> > I am not an expert at lapping, but a brake cylinder lap can be used.
>You can
> > buy them for around 15.00 at auto parts store.
>
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