Quote:
Originally Posted by Bdc101
Wow, I was just about to post a reply to Fifty150hs's comment about how would like to do an M56 valve cover upgrade in the next year or so, rather than a catch can. (I replaced all the CCV equipment with cold-weather gear a little over 6 years ago, so it's going to be time soon to do it again.)
The catch can requires regular draining and I would prefer to the "set it and forget it" approach of the M56 valve cover.
Nick, you should post up a thread on the upgrade including part numbers and the twists and turns you experienced, maybe when you are all finished with it.
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Honestly, I don't know that it's worth a thread.
I think that the biggest note is that there are a lot of different ways that people are hooking up the air distribution rail from the manifold to the valve cover outlet.
The absolute easiest way is to use this piece:
https://www.fcpeuro.com/products/bmw...se-11617504535
I did that, but honestly, I hate it. You end up needing to use TWO vacuum caps, which adds a very real source of future leaks, and the one by the 90 ends up very visible.
Beyond that, I like these for caps:
https://www.amazon.com/HPS-Temperatu...083QJNZDZ?th=1
Kind of ugly, but way more durable than the usual shitty rubber caps. You'll need one in 3/8 or 10mm for the dipstick no matter what - and that will be out of sight.
Edit: Corrected to remove suggestion that M56 distribution rail is usable. It turns out that it's permanently bonded to the manifold.