Posted by N8 on January 15, 1999 at 20:34:02:
hers an idea for the FAQ section.. Tech tips, not the general stuff like "dont burn off you eyebrows" but good stuff,
heres my 2 cents worth
the easiest way to lapp in valves on a newly rebuilt head is to turn the head on its side with the valve stems towards you, use a drill motor (the ones with the hand tighting jaws are the best) and use it to spin the valve with your lapping compound on your valve seat.
be sure to oil the valve stem and dont spin the drill too fast. Use a slight in out motion to keep the lapping compound rough on the surface and you can turn a 1 hour job into 10 min.