Trying to fix a shrinker

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Vinnie

Project manager "Project AmsterFoose"
7173 Mustang Supporter Member
Joined
Nov 7, 2013
Messages
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Location
Amsterdam, The Netherlands
My Car
1973 Mustang Grande 351C 2V, built on the very last production day (July 6, 1973) for Grande's.
Hi folks!

A while ago I bout a shrinker and stretcher, the cheap ones that many, many others have bought as well. They often don't really work but there are people putting up videos about fixing them. This is what they look like:

1728367506941.png

So I set out to fix my shrinker first.

The most obvious fix were the contact surfaces of the jaws and anvils:

1728367608102.png

They looked like crap so I grabbed a file and made them smoother:

1728367708274.png

So once I fixed that and put it back together, the jaws slide like never before.

Then the next problem occured; the beam that the grip slides in has a sharp edge that gets stuck underneath the spring holder. You can thus move it one way but it won't go back. I fixed this by making a very small dent into the tip which solved this problem:

1728367881111.png 1728367912605.png

Another thing that was very poorly made was the size of the opening. The bottom was too high causing the top of the lower jaws to move below the edge.

So I also cut a bit off the bottom of the openeing so that it is now big enough and also the bottom jaws are clearly visible:

1728368332501.png

So you'd think I can now shrink like no one has ever shrunk before! But no...

The jaws hardly grip the metal and just slide to the middle slipping over the sheet metal I put in between...

The bottom and top jaws look ike this:

1728368502103.png 1728368512486.png

So, anybody here ever had this issue and found a solution? Do I need different jaws? Is the geometry of the jaws wrong? Is it somehow adjustable?

Cheers!

Vincent.
 
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