View Single Post
Old 11-09-2013, 01:31 PM
bzeboymenz bzeboymenz is offline
Registered User
Location: Los Angeles, CA
Join Date: Oct 2010
Posts: 31
Mein Auto: 2005 BMW 645 Ci
New N62 valve stem seal tool by AGA

With the camshaft still in the engine, it looks like AGA is using a spring compressor tool to push down on the valve spring retainer.
They then slide out the rocker arms from under the camshaft, of course, the cam lobes are out of the way to freely remove the rocker arms.
With the rocker arms out, they can then freely compress the springs and remove the valve collets. (Bear in mind, the cylinder needs to be under pressure with compressed air at this point.)
After the collets are removed, the valve springs can then be taken out and give access to the valve stem seals.
At this point, AGA can then remove the old valve stem seal and replace it.
Next, install in reverse.

By the way, I posted a link on this forum a while back that showed how Sean750 did this procedure on a BMW V12 engine a while back.
Here it is:

I plan to do this procedure starting 11/18/2013 since my car needs to be smogged by the end of 11/2013.

Just thought I'd share what AGA's tool is probably going to do. They are very innovative. This guy is proud, passionate and actually patents his inventions for BMW repairs.
Reply With Quote