banzaitoyota

From MAZDATRIX.com



"A fair amount of material can be removed from the housings - the problem is that it is cumulative. Both in the total per housing (how many times have they previously been cut ?), and the total of cuts done on all FOUR surfaces. You can actually end up with an engine that is so "short" the manifold holes need to be ovaled. The actual limit (which is virtually impossible to measure) is the radius of the end of the stationary gear hitting the radius of the eccentric shaft rotor bearing journal."

toddp31

nice find banzaitoyota, explains it better

andynogo

Obviously they mean the front, rear and centre housings. The rotor housings have a minimum critical thickness which is measured by the difference in rotor width and housing width across the wear surface, of 0.1mm minimum, so you're spot on there, toddp31



The aluminum housings should never be refaced except for very light cleaning- if they're warped they have to be replaced, and it is these housings that determine how squashed the side seals etc are on the sides of the rotors.



The iron side and centre plates are the ones that get lapped