Mike Lindsey

You can remove the spring from the back side of the seal. Find the seam where they connect it together. Basically they spiral one end down to make a tapered male end. Once you locate the seam, unscrew the connection like backing a bolt out of the nut. Once the spring is laid out straight, cut 10mm off the female end. A pair of dikes works well for that. DON'T cut the tapered down male end. Cutting that end means buying a new seal since using your old spring we don't recommend.

Then, you screw it back together. But you first need to CCW turn the male end a couple turns while not letting the female end spin, so that when you screw it back in, it doesn't have a natural tendency to unscrew itself. It's then in a relaxed state you might say.

Reinstall on the seal and verify it's proper resting place all the way around.

You can practice your cut on your old seals spring.

darek_u

^^^ Great tip, thanks Mike!

FRporscheman

I've had no issues with the 2 or 3 I installed with a hammer and wooden punch.

But recently I became sophisticated and made a special tool (milled an aluminum spacer instead of using a PVC pipe), and I used Curil T sealant, and that one has been leak free for 1000 miles. It's installed just to the depth of the chamfer.