Many of you may have seen my DIY that converts a stage 1 PCV fix into a stage 2, if you haven’t here is the link: http://www.golfmkv.com/forums/showthread.php?t=83761
Over the winter it froze and I had to go back to the stock setup.
This year I upgraded the hoses and fittings to a 1/2” ID and added some hardware so it can be easily switched from stage 1 to 2.
Here is a picture of the modified catch can. I won’t go in to detail of how I upgraded all the hardware:
Tools needed:
1/4” NPT tap
1 x 1/4” NPT plug
2 x 3/8” NPT plugs
7/16" drill bit
Here is what the plugs look like
Drill and tap the ¼” NPT hole between the 2 main holes. It needs to be offset slightly to the left so the gasket on the valve cover lands in the middle of the plug. In my case because I had filled in the channel with JB weld so I had to re-create the channel, more on this later
Outside
Inside
In stage 1 mode the 3 plugs are out half way:
Outside
Inside:
Above we can see the channel partially redrilled
In stage 2 mode the middle plug is in all the way and the barb connectors are added:
Outside
Inside:
There would also be a third mode not shown here where the left and middle plugs are in all the way and the right barb is attached. This would create a race can configuration.
Lastly I apologize for the poor picture quality and not having a picture of the final product after the channel was completely re-drilled, but I imagine you get the idea.
-Cad
Over the winter it froze and I had to go back to the stock setup.
This year I upgraded the hoses and fittings to a 1/2” ID and added some hardware so it can be easily switched from stage 1 to 2.
Here is a picture of the modified catch can. I won’t go in to detail of how I upgraded all the hardware:
Tools needed:
1/4” NPT tap
1 x 1/4” NPT plug
2 x 3/8” NPT plugs
7/16" drill bit
Here is what the plugs look like
Drill and tap the ¼” NPT hole between the 2 main holes. It needs to be offset slightly to the left so the gasket on the valve cover lands in the middle of the plug. In my case because I had filled in the channel with JB weld so I had to re-create the channel, more on this later
Outside
Inside
In stage 1 mode the 3 plugs are out half way:
Outside
Inside:
Above we can see the channel partially redrilled
In stage 2 mode the middle plug is in all the way and the barb connectors are added:
Outside
Inside:
There would also be a third mode not shown here where the left and middle plugs are in all the way and the right barb is attached. This would create a race can configuration.
Lastly I apologize for the poor picture quality and not having a picture of the final product after the channel was completely re-drilled, but I imagine you get the idea.
-Cad