I've got a 30-35 year old American Standard toilet that needs to have the actuator assembly replaced. Symptom is that when I flush, the actuator tips back beyond the point where the actuator can fall back and enable the toilet to refill. As such, I have to jiggle the handle a little to get that to happen. I've looked at the plumbing supply websites and I'm "assuming" that the part I need is the "Actuator for Old American Standard Toilets". I looked at the #4 and #5 AS actuators and I'm guessing they are for more modern AS toilets than mine. So I'm basing it on the age of the toilet. So before I do this, I have a couple questions that hopefully someone could answer as this will be the first time I've replaced an actuator:
1) How do these actuators fail...in other words, what on the actuator causes the assembly to tip back beyond the point of resealing the toilet?2) How easy (or hard) is it to replace the assembly? I've been on a couple other sites and some posters reference leaking problems at the base after replacing one of these.
3)Does the whole assembly have to be replaced or can the base of the actuator be left on and the rest of the new actuator be fitted onto the base of the old actuator?