Town Car Lumbar motor assembly replacement

[Town]

These procedures apply to a 2006 model. You can see the exploded view of the front seat showing the lumbar motor assembly as item 9. It consists of a motor and adjustable pad and is held in place with a couple of rivets. If the motor runs but the lumbar pad does not move then the attaching rivets may be broken. Also attached are the procedures to remove the front seat and to replace the motor assembly.

The lumbar motor tightens or relaxes a cable connector to the lumbar adjuster.


Good luck.

 

[ToodyTah]

07 driver and passenger lumbar don't work. I took it apart today and found the gear assembly inside with crumbled plastic teeth. everything else is fine (motor/cable). I pushed the lumbar plate forward to release pressure on the cable, pulled the cable hook from the bottom of the seat and wrapped it up under the seat frame tube, then hooked the hook on the cable. This provides a few inches of lumbar support, where before it was flat/no support. Too bad they don't make these anymore. It'd be nice to replace with brass gears but for now, it's as good as it gets.

 

[oktowncar]

07 driver and passenger lumbar don't work. I took it apart today and found the gear assembly inside with crumbled plastic teeth. everything else is fine (motor/cable). I pushed the lumbar plate forward to release pressure on the cable, pulled the cable hook from the bottom of the seat and wrapped it up under the seat frame tube, then hooked the hook on the cable. This provides a few inches of lumbar support, where before it was flat/no support. Too bad they don't make these anymore. It'd be nice to replace with brass gears but for now, it's as good as it gets.

Find someone with a 3d printer and you could fabricate the gears

 

[HighwayStar]

Find someone with a 3d printer and you could fabricate the gears

That works best if you have an intact one to scan...
I need to fix mine as well, I'm heading to the junkyard soon to look for a motor. I have access to 3D printing, not sure if there is a scanner but it would be great if we started accumulating files for 3D printed Town Car parts

______________________________

 

[oktowncar]

That works best if you have an intact one to scan...
I need to fix mine as well, I'm heading to the junkyard soon to look for a motor. I have access to 3D printing, not sure if there is a scanner but it would be great if we started accumulating files for 3D printed Town Car parts

That would be a great idea for a thread pinned at the top

 

[ToodyTah]

These work Upgraded Lumbar Support Parts for Schukra Units

 

[HighwayStar]

These work Upgraded Lumbar Support Parts for Schukra Units

Nice find.
I just pulled 2 assemblies from cars at the pick and pull this weekend. One from an 04 which looks like the mechanism you linked. And one from an 08 which is different but matches my 06 car.

I'm going to do some testing on these junkyard units and see if they work. Not sure if any of the internal parts are interchangeable. However the unit as a whole might be.

 

[HighwayStar]

Well I was able to bench test both units, and fortunately both work.
If anyone should find they need to test one of these, its very easy to do. You need a 12 volt battery source (I used a portable jump-starter, but connected directly to the battery socket not through the cables which have some kind of over voltage over current protection that causes problems) and a pair of test leads ( I used a 2.99 Harbor Freight set. Basically 12v connected one way through the motor runs it one direction, reverse the voltage and you get the other direction. Pretty simple.

______________________________

 

[HighwayStar]

I found a set of lumbar support gear files on Thingverse to 3D print. I have them printing now, so hopefully in a day or two I will be able to test them out.

 

[Action]

Post back the result. That would be interesting to know if they work and hold up.

Action

 

[oktowncar]

I found a set of lumbar support gear files on Thingverse to 3D print. I have them printing now, so hopefully in a day or two I will be able to test them out.

Now if we could get @bbf2530 to pin a 3D print thread up at the top of this forum section we could have easy access to any 3D print files for members and their TC's in the future

 

[bbf2530]

Now if we could get @bbf2530 to pin a 3D print thread up at the top of this forum section we could have easy access to any 3D print files for members and their TC's in the future

Hi oktowncar. You should let the @Administrator know about that. I'm not a Moderator or Administrator here on the Lincoln Forums. Just a regular Internet mook like everyone else.

Good luck! 🍻

______________________________