Here is what the instruction say from the 56 manual which is almost word for word to the 51-4. The hole in the movable part is visible but I cannot remember what the pin inserts thru or presses against to block against the spring.
It has been so many years since I last messed with one but I remember using a nail as a pin thru the hole and how strong the spring was trying to hold things in position to insert the pin.
I believe that movable part is the same on the 55-6 tensioners. Unfortunately with the factory AC evaporator box in my 56 I cannot even see the tensioners let alone get a camera in to take a photo.
Attach file:
(29.93 KB)
This Post was from: https://packardinfo.com/xoops/html/modules/newbb/viewtopic.php?post_id=197862