05-08-2015, 11:57 AM
Join Date: Apr 2015
Vent actuator plastic linkages!
The other day, I work on fixing my vent actuator plastic linkages on my 97TJ. My center dash and defrost linkages broke so I ordered the parts hoping that it would be a quick fix.
Well, for the life of me, I couldnít get the broken piece out. I took out dental tools (after all, they are for extraction) and worked on it for around 1 hours. Eventually, I decided that I had to fix the parts in-place.
+ Took out the middle actuator (there are three, under dash driver side, looking up), this gave me more working room. This middle actuators controls the defrost linkage (the top linkage)
+ Took the broken middle plastic linkage out (this linkage connected to the top actuator Ė this is the center vent linkage).
Fix the linkage by:
+ Get a large screw, slightly larger than a deck screw.
+ Cut a plastic drywall insert to about 0.5Ē or so
+ Cut a strip of electrical tape, fold it length wise so the sticky part is facing out both sides, and put this around the plastic dry wall insert (Locktile would be great but I donít have any on hand)
+ Insert the dry all insert into the broken linkage hole, install the screw, it will force the dry wall insert to expand and make a tight fit with the linkage outer wall.
+ Screw the linkage back onto the broken piece inside the vehicle. Donít completely tighten it yet.
+ Turn on the vehicle, put the slider in the position to open the center vent to get the actuator to move to the open position. This is when the actuator pulls the linkage to the most forward position.
+ Hook the plastic linkage to the actuator metal arm. Continue to tighten the screw. Clockwise turning naturally open the center vent.
Use similar procedure for the defroster vent. In this linkage, I use a short deck screw.
Everything seems fine so far. If yours is broken, try to see if you can remove the broken parts first, if not, don't bother buy the new linkages.