This DIY is mine:
FWg_A
I want to make another version that shows how I do this currently. Everything is done in the same manner...only my sprayer mod is much easier to utilize without fighting the throttle revs.
If any of you are experiencing frequent valve build-up...you may have a faulty valve cover that may have cracks in either the EVAP or EGR ducts on the underside of the v-cover. A catch-can would aid if this is the case but the v-cover will still need replacing at some point.
Below are bore pics of my most recent blow-by using equal parts solution of white spirits, pump fuel(petrol), and either NAPHTHA or xylol(xylene).
Before:
After:
This may also be helpful: [ Invalid YouTube link ]