RMS sleeve? Scratched case wall, now what?

[spendy]

Originally Posted by JFP in PA

Regardless of the reason, if you are using the updated PTFE seal, never use any type of sealants. One of the quickest ways to get one of these to leak is to use sealants.

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I was picturing that the gap he has is between the case and the outside of the RMS. The outside of the RMS looks to be a steel ring coated with rubber. I don't see how a bit of sealant in one spot would cause any leakage. Then again, if it is a small enough scratch the rubber on the outside of the rms might fill it.

What I have heard is that the PTFE RMS surface that touches the crank should be installed dry, but that's not the part of the RMS I am referring to.

[JFP in PA]

Originally Posted by spendy

I was picturing that the gap he has is between the case and the outside of the RMS. The outside of the RMS looks to be a steel ring coated with rubber. I don't see how a bit of sealant in one spot would cause any leakage. Then again, if it is a small enough scratch the rubber on the outside of the rms might fill it.

What I have heard is that the PTFE RMS surface that touches the crank should be installed dry, but that's not the part of the RMS I am referring to.

The PTFE seals are known to leak easily, even around their circumference, with as little as a finger print on them. Unless the case bore is clean, dry, and free of sealant or other contaminant, they will leak; that is their one major downside, the installation has to be correct, no contamination of any kind. There is a reason the PTFE seals come with a blue plastic ring that protects their inner circumference.

[Meir]

Anyone has by any chance the installation instructions for the new seal, using the updated Porsche RMS tool?

[JFP in PA]

Originally Posted by Meir

Anyone has by any chance the installation instructions for the new seal, using the updated Porsche RMS tool?

Believe it or not, there aren't any for a simple reason: Using the factory tool, you just substitute tool components for the new style seal, load the seal into the tool (with the blue protective ring still on the seal), bolt the tool the rear of the crank, add the insertion bell, and then turn the large center bolt until the tool bottoms on itself, and then remove the tool. The blue protective ring will be retained in the tool.