When I got my 22re based truck, (89) I noticed the idle was horrible, absolutley teeth shattering. Intolerably so. If it was a stick shift, I know I would have had to hold it in gear. I did some work on it and it is pretty smooth, but I want to see how your 22re's idle.

How bad is/was your idle vibration?
What have you done to fix it?

I have theories about what could cause vibration:
fan out of balance
pulley not straight
tune up
motor mounts/tranny mounts

I replaced my EGR, pcv valve and grommet, plugs, wires, distributor cap, belts, hoses, and did the seafoam treatment, and timing. It shutters only a little while at a light, and oddly changes speed and vibration harmonics with the signals blinking, sometimes. I notice after a bit of driving that my brake foot left foot feels a bit tingly from sitting on the floor, so I would like it better.

How smooth can you get them? What shoudl I expect to acheive?

 

Mine was smooth enough that if not for the a tach I wouldn't know it was running. It was still that way at 240k right after each tuneup.

 

Good to know, so I do have some more investigating to find out why it shudders at all.

 

An update, on a really exciting thread
I have solved 99% of my shuddering engine.
I replaced nearly all my vacuum hoses, and it is much, much smoother. I didnt test any of them, just swapped them out, and viola, smooth idle.

 

mine runs extremely smooth, even with the 02 sensor unhooked. the only thing you can hear is the exhaust leak that i cant seem to get rid of