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Installing the 914 Rear Trunk Springs

Pelican Technical Article:

Installing the 914 Rear Trunk Springs

Mike Cooley


3-4 hours






Ricky Do 914 torsion spring tool, electric drill, drill bits, metric wrench and metric socket set, safety glasses

Applicable Models:

Porsche 914 (1970-76)

Parts Required:

Parts to make the tool - see linked flies

Performance Gain:

A rear trunk that will open and close

Complementary Modification:

Reupholster the trunk

Mike Cooley has donated the procedure for manufacturing this handy little tool for reinstalling the trunk springs in your 914.   Please be sure to wear safety goggles when removing or installing the springs, as they can be very dangerous.

The procedure and dimensions for the fabrication of the tool are encapsulated in a graphic file that you can view by clicking here.

The procedure for installing the springs into the car can be viewed by clicking here.

John Lampert adds:

   I just thought it worth mentioning (having taken a look at Mike Cooley's neat'but thinking intensive'home-made tool for reinstalling the rear trunk springs), that I made my own for the same purpose, and with much less thought, using something most home mechanics already have laying about. I found that my standard hydraulic floor jack's ratcheting lever, the shaft you slide into the ratcheting slot and turn to secure, worked well for the task. I simply used a grinder to remove a half circle of the shaft near the end, about half an inch from the end of it, just wide enough to accommodate the diameter of the spring's tip end in the notch. With one side of the spring bolted down already, this allowed me to lever the other end down with one arm and keep it in place while I spun the two nuts on for the plate to hold it down for good.

   The trunk was off at the time, but everything else was present and nothing got in the way, though each unweighted hinge will naturally press forward against the edge of the side grill, and it is wise to place a towel or something over their edge to protect them. And in the end, my new tool went back to the service for which it was originally intended, with no ill effects. I hope this does not sound too slip-shod. It made me happy. --John Lambert/914 owner

Comments and Suggestions:
butch Comments: has anyone ever changed the springs on the rear hood to anything else, my passenger side mount just came apart, it had been welded before I bought my car. wasn't working so I hooked it up, lasted about a week, driver side works, but it sure is a mess opening and closing hood. thanks for your help..
March 28, 2014
  Followup from the Pelican Staff: I have not. I opened a post in our forums. A Pelican community member may be able to answer your question.
- Nick at Pelican Parts
Burke Comments: Great tip for the trunk springs. For the impatient folks who don't want to create this tool, I'll tell you I accomplished this with 3 box-end wrenches. The basic idea is to "walk" the wrenches along the side of the torsion spring, gradually increasing pressure until you can hook the spring end under the roller. However this process is DANGEROUS since the spring can snap back at you. Also frustrating when you realize your last box end wrench is stuck on the spring when you're done. I used a pickle fork with vise grips on the end to twist the spring one last time and remove the final box end wrench. I like John's suggestion too - would have done that if my trunk were off already.
February 7, 2012
  Followup from the Pelican Staff: Thanks for the additional info. We appreciate it.
- Nick at Pelican Parts

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Page last updated: Mon 1/22/2018 02:20:49 AM