Re: Cannot open door
Posted by HH56 On 2020/8/11 23:16:24
In addition to what Riki shows and has explained, there is also a good possibility the problem is with a small collar that is attached to the shaft positioned between the pushbutton and the latch assy. The entire shaft rotates with the key cylinder to move a mechanism which works the lock portion while the collar presses against a lever on the latch assy to release the toothed wheel so it can rotate and allow the door to open when the button is pushed. The collar is held on the shaft by a setscrew. It is possible the collar has slid on the shaft and can no longer push the release lever far enough to disengage the toothed wheel.
If you are lucky the collar and particularly the setscrew will still be positioned so you can access the setscrew with an allen wrench thru the access hole under the weatherstrip while it is in the car. If not, then the door handle will need to come off. The service manual explains how to remove the handle but in all probability, if the handle has never been removed the original spring steel retainer piece has rusted to the channel which holds it and the handle in the door and will be broken when you try to remove it. Each handle has a specific retainer piece and they are not interchangeable. While some NOS retainers are still around, repros made of a non rusting material are also available but both NOS and repros are expensive.
The collar is shown in the first photo of a door handle and the lever it pushes against (A) and the mechanism the shaft rotates to lock the door from the outside (B) is shown in the second photo inside the circled portion of a typical 51-6 latch assy. The access hole under the weatherstrip with the collar and setscrew barely visible is shown in the third photo. Whichever way you access the screw, it would be a good idea to liberally apply a penetrating oil such as PB Blaster on the screw and let it sit for several hours before trying to loosen it. If the screw has rusted it may be very difficult to loosen and the setscrew socket may be damaged to the point the handle must be removed and screw drilled out.
The toothed wheel has two different mechanisms for release and if moving the collar slightly toward the inside of the car does not help, it is possible something is broken in the latch assy related to the parts that release the wheel from the outside button.
Attach file:
(64.52 KB)
(27.16 KB)
(114.05 KB)
If you are lucky the collar and particularly the setscrew will still be positioned so you can access the setscrew with an allen wrench thru the access hole under the weatherstrip while it is in the car. If not, then the door handle will need to come off. The service manual explains how to remove the handle but in all probability, if the handle has never been removed the original spring steel retainer piece has rusted to the channel which holds it and the handle in the door and will be broken when you try to remove it. Each handle has a specific retainer piece and they are not interchangeable. While some NOS retainers are still around, repros made of a non rusting material are also available but both NOS and repros are expensive.
The collar is shown in the first photo of a door handle and the lever it pushes against (A) and the mechanism the shaft rotates to lock the door from the outside (B) is shown in the second photo inside the circled portion of a typical 51-6 latch assy. The access hole under the weatherstrip with the collar and setscrew barely visible is shown in the third photo. Whichever way you access the screw, it would be a good idea to liberally apply a penetrating oil such as PB Blaster on the screw and let it sit for several hours before trying to loosen it. If the screw has rusted it may be very difficult to loosen and the setscrew socket may be damaged to the point the handle must be removed and screw drilled out.
The toothed wheel has two different mechanisms for release and if moving the collar slightly toward the inside of the car does not help, it is possible something is broken in the latch assy related to the parts that release the wheel from the outside button.
Attach file:
(64.52 KB)
(27.16 KB) (114.05 KB)
This Post was from: https://packardinfo.com/xoops/html/modules/newbb/viewtopic.php?post_id=225486