Stuck window latches on a '78

[juel]

Anyone have ideas on how to un-stick the latches on the 78 windows? They look corroded and will not move to lock or unlock the window. They are the kind that turn and raise and lower a little bar that locks and unlocks the window. I have some that I can't get to move. Any suggestions.

[thenewkid64]

remove the screens and you can 'tap' on them to break them free once you get the cam lock to open. Be very careful the locks cost close to $30.00 each to replace (60 bucks a window ) ad you could break the glass if you hit it with a hammer. I would also spray liberal amounts of penetrating oil, not WD40, but an actual oil on the moving parts and leave it sit overnight before getting too rough on it.

[Janets Husband]

Just like Brett said lots of penetrating oil.
I have had spectactular results with KROIL. Good if you can find it.
They also have some good products to keep them unstuck once you achieve unstuckdum...
The products which leave a dry lube are best in the long run. They won't gum up or attract dust and dirt.
http://www.kanolabs.com/home.html

[j54mark]

Those things are an assembly of steel and pot metal castings and are easily broken. Do not get in a hurry. I am assured by experts that there are better products out there, but I have had excellent results with PB Blaster, and it is widely available at auto parts stores. Apply and allow to work overnight.

Mark