'03 Disco SE
Join Date: Aug 2011
Location: Clearwater, FL, USA
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 12 Post(s)
Technically the manual specs "Hylomar PL32" which is a non-hardening jointing compound (gasket dressing) rather than an RTV. However I agree with DB on this one - RTV is probably better for this application. I think the fact that they used dressing instead is what led to the leaks.
Just be sure to use a very thin bead - you don't want it leaking out or affecting how the mains seal.
Only drawback of the whole project is that the manual states that bearings must be replaced any time they are removed - and to get to the cross seals you do need to pull the bearing. Replacing the bearings is a bear of a job, requiring you to pull the motor, disassemble the bottom end, grind/polish the crank, and install oversize bearings.
Feedback on reusing bearings ranges from "I do it all the time with no problems" to "Don't even think about it." The problem is that after thousands of miles of use, the bearings develop a wear pattern. If you attempt to reinstall them, odds are that you won't get the positions 100% right, which will cause the wear patterns to overlap and accelerate wear.
Take all that with a grain of salt though. The cost for such a job can easily exceed $3000 if done professionally and that just may not make sense financially, leaving you with the option to either let the car keep leaking, or to reuse the bearings anyway and hope for the best.