Purpose of Plastic Door Liner?

[Greenleaf]

I have removed three door liners in the past two weeks and they are a pain to reconstruct after removal. Them things are super glued to the door and must be removed to R&R the window motor/electric lock actuator/electric mirror etc. etc.



I find it easiest to trim one inch off the OD of the liner to allow room for the tape to fasten them onto the door. Otherwise I'd have . 5" to 1" of tape exposed from OD of the door panel.



Please tell me these heavy plactic liners serve some purpose as I have spend a goodly amount of time reconstructing them back onto said door. Thank goodness for school bus seat cloth tape.



Exhausted in Ohio

 

[03 H.O. Police]

moisture barrier would be my guess

 

[tugboatphil]

Indeed. If the "squeegee" seals where the window goes into the door fail, you will notice a buildup of water in the bottom of the door... . especially if the drain holes are blocked. The starboard door on "ol Blue" used to "drain" every time I opened it after a good rain.

 

[CLiberty]

They are tp keep water from getting in, and also to help keep the back of the door panel dry. An easy way to re-construct them is to get some butyl rubber tape (a glass shop should know/be able to get it),lay out the butyl tape in the same pattern as the factory glue/goop and then use a heavy duty contractor type garbage bag, stick it to the butyl tape and trim the excess with a razor.

 

[BigEasy]

I just cut an X where I need to pull the motor out, then duct tape it back together when I'm done... pretty simple

 

[wtfd6]

they also help from having air leaking in through the door panel.

 

[PToombs]

Oh! you're supposed to put that stuff back? :--)

 

[Greenleaf]

Hey P... .



I like your sig. When I was a (shop) school teacher, we couldn't give a student a poor grade if a job wasn't performed 100% correctly. Say a brake job on a customers 40' reffer van. If the student did MOST of the work correctly they are to recieve a passing grade.



I guss that's ok. When you take your truck or trailer to a garage, the techs only have to get 60/70% of the brake linings on correctly... . right? And you don't REALLY need all SIX cylinders firing properly either... ... .....

 

[DieselBuzz]

I thought that they also made the door sound solid when it shuts, instead of the hollow can sound.