Yes, you've probably got some serious goo clogging up the sliding mechanisms.
I have had really good luck with my door by taking off the rear sliding
mechanism and cleaning it thoroughly and regreasing it. clean your tracks
etc.(doesn't hurt to clean all mech's). You'll be amazed at how well the door
works when it's clean and lubed.

TonyD
'87GL

Wil Barker wrote:

> I have an '85 Westy and as I live in NJ this is the time of year when
> the temp starts to dip into the 40's [F].  Pretty much as soon as the temp
> drops to 49 degees the sliding door will not close easily from the inside.
> I must get out and close it with two hands (one at the front and one
> pressing at
> the back).  What's up with this???   Is it just the grease viscosity on the
> rear
> latch mechanizim?  Is the door a giant bi-metal thermometer?
> Is this a feature or a bug?
>
> Anyone else experience this fun?
>
> - Wil
> '85 Westy