Sten Posted April 12, 2023 Share Posted April 12, 2023 Has anyone had experience of changing the valve stem oil seals 'in situ' - i.e. without removing the cylinder head? M50B25TU engine so Vanos/Sprockets/Cams would have to be removed,there's a couple of tools available like this one https://farrow.tech/bmw-valve-spring-compressor/ to compress the valves and remove the collets whilst keeping the valves shut using compressed air through the plug hole. Bentley lists all sorts of special tools to lock things in place plus a tool to remove the camshafts. I used a tube of Forte Seal Conditioner which stopped the smoking at idle but it's not a long term fix. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.