 What to do about scratch in Rear Main Seal bore? |
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| frank_c |
 Feb 27 2026, 12:38 AM
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Member  Group: Members Posts: 72 Joined: 29-December 24 From: Austin, TX Member No.: 28,542 Region Association: None  |
I'm in the process of replacing a leaking Rear Main Seal, and after pulling the old seal I noticed two scratches in the case bore (honestly, it wasn't me - I have the proper tool for this (IMG:style_emoticons/default/smile.gif)).
From what I've been able to find the RMS should be installed dry, but what is the best practice to address the two scratched areas to avoid a leak? Here are some of the suggestions I found when searching: 1. Use an emery cloth to knock-down any raised edges 2. Fill scratch with high-temp JB Weld 3. Use some type of sealant at the scratch Do I use none, one, or some combination of the above (or some other) to address this? Any help would be much appreciated as I'd like to get the new seal in this weekend.   |
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