Well the most part they are dry rotted an when you take the cover off sometimes they break, but most part yes you can re use them...its one of those you would have to take it apart to see...But if you dont call them gaskets what do you call them O'Rings lol
Quote Originally Posted by GM_TUNER
Oh....lol, well i dont consider those gaskets, when it comes to doing the actual adjustment b/cuz usually those things are good enough to continue on, unless the engine is leaking oil too, in that case, it wouldnt be only a valve adjustment that would be needed...

Just a difference in opinion, thats all.