03-08-2020, 08:23 PM
(This post was last modified: 03-08-2020, 11:28 PM by Bob Culver.)
Some consider very little or no backlash undesirable in which case lapping may not be worth the effort. The box on my car has done about 130,000 miles and with the gear turned but no lapping lost motion is about 1/4 inch.
A possible problem with lapping, if done in one position as soon as the mesh is altered a tiny degree rides on the unlapped. With car cwp the lapping machines oscillate the gears around a base postion slightly.
valve grinding paste is not very aggressive and breaks down. Carborundum powder needs very careful clean up and must not get into bushes.
A possible problem with lapping, if done in one position as soon as the mesh is altered a tiny degree rides on the unlapped. With car cwp the lapping machines oscillate the gears around a base postion slightly.
valve grinding paste is not very aggressive and breaks down. Carborundum powder needs very careful clean up and must not get into bushes.