I have been searching for some info on how to fix a stripped greddy type-s bov. The threads where the adjustment screw goes in are toasted. So i removed the cap from the bov and wondering what size i can tap the threads with. currently it was made for M6x1.0 . what would be the best size tap for it? also I was reading about the spring mod for it as well.. Removing the smaller spring and leaving in only the larger spring. Anybody on here tried this before?

 

try a 1/4 fine thread pitch.
yes it flutters less with just the big spring

 

K , I will try 1/4. My 1g bov leaking bad so I need atleast one working correctly. and i will use the larger spring only see how that goes. thanks Jerry

 

or you can bring it to a hardwear store bring the screws and cap and they have guages for thred and size i use fastenel alot for shit like that but ace home depot etc will have it to