Jump to content

Welcome to RennTech.org Community, Guest

There are many great features available to you once you register at RennTech.org
You are free to view posts here, but you must log in to reply to existing posts, or to start your own new topic. Like most online communities, there are costs involved to maintain a site like this - so we encourage our members to donate. All donations go to the costs operating and maintaining this site. We prefer that guests take part in our community and we offer a lot in return to those willing to join our corner of the Porsche world. This site is 99 percent member supported (less than 1 percent comes from advertising) - so please consider an annual donation to keep this site running.

Here are some of the features available - once you register at RennTech.org

  • View Classified Ads
  • DIY Tutorials
  • Porsche TSB Listings (limited)
  • VIN Decoder
  • Special Offers
  • OBD II P-Codes
  • Paint Codes
  • Registry
  • Videos System
  • View Reviews
  • and get rid of this welcome message

It takes just a few minutes to register, and it's FREE

Contributing Members also get these additional benefits:
(you become a Contributing Member by donating money to the operation of this site)

  • No ads - advertisements are removed
  • Access the Contributors Only Forum
  • Contributing Members Only Downloads
  • Send attachments with PMs
  • All image/file storage limits are substantially increased for all Contributing Members
  • Option Codes Lookup
  • VIN Option Lookups (limited)

08 boxster RMS depth

Recommended Posts

On to the next project. Doing the rear main seal on my 08 boxster. Is the depth still 13mm for the seal or is there an updated number, thought I read 14mm somewhere. Also, any thoughts on taking the rubber seal off the front of the IMS bearing. Read conflicting reports about doing it or leaving it alone. Thanks Vince

Link to comment
Share on other sites

  • Moderators

13MM is correct, installed using the correct tool for the updated design PTFE seal. Both the seal and the opening MUST be absolutely clean, not even finger prints or the seal will leak.  NO SEALANT of any kind should be used.


Removing the flywheel side seal on the oversized IMS bearing is highly recommended.  Prior to removing the IMS flange, the engine must be locked at TDC, with the cams also locked in position before removing the hydraulic chain tensioners; then the flange can be removed and the seal extracted.  A small dental pick is the ideal tool to get the seal out.


Link to comment
Share on other sites

  • Moderators

You need to remove the two that tension the IMS chain on the flywheel end of the engine, easiest thing to do is locate an online copy of LN Engineering’s IMS retrofit instructions and follow them to the letter.


The IMS flange has a ribbed seal around its circumference, not sure if Porsche offers it separate from the cover anymore.



Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.