powerdbygarrett Posted January 8, 2017 Share Posted January 8, 2017 How to block PCV for catch can What is the best method to block the pcv port for a catch can install? I took out the check valve, went to three different hardware stores and could not find a block of fitting with the same thread. What is the thread on this thing? I will order the proper fitting online. Unless there is a better option Thanks Link to comment https://www.sau.com.au/forums/topic/468520-how-to-block-pcv-for-catch-can/ Share on other sites More sharing options...
KiwiRS4T Posted January 8, 2017 Share Posted January 8, 2017 I can't tell you what thread you have but if you go to an engineering supply store or a hydraulic hose and fittings shop they should be able to tell you what thread it is and supply a suitable fitting. Link to comment https://www.sau.com.au/forums/topic/468520-how-to-block-pcv-for-catch-can/#findComment-7803453 Share on other sites More sharing options...
GT-R David Posted January 9, 2017 Share Posted January 9, 2017 I have the same problem.Googled and everybody said it's 1/4bsp. But it isn't!This will screw in only 2 turns because the original part it is tapered.The hydraulic shop ordered me the "right" one. Same thread as the valve, also tapered. But it screws in only one turn, because it's a little big thicker where the taper starts.I will just use a good silicone end cap on the valve now. Link to comment https://www.sau.com.au/forums/topic/468520-how-to-block-pcv-for-catch-can/#findComment-7803627 Share on other sites More sharing options...
powerdbygarrett Posted January 12, 2017 Author Share Posted January 12, 2017 Same issue here. A store specifically for fittings ordered me three different ones. None fit in. Insane! I will cap it for now as well. Last resort is to cut of the thread part from the check valve and weld it to a bolt head Link to comment https://www.sau.com.au/forums/topic/468520-how-to-block-pcv-for-catch-can/#findComment-7804330 Share on other sites More sharing options...
blind_elk Posted January 14, 2017 Share Posted January 14, 2017 You don't need to block off the PCV valve. Link to comment https://www.sau.com.au/forums/topic/468520-how-to-block-pcv-for-catch-can/#findComment-7804649 Share on other sites More sharing options...
powerdbygarrett Posted January 14, 2017 Author Share Posted January 14, 2017 You don't need to block off the PCV valve.What do you mean? Just leave the check valve in there?? Link to comment https://www.sau.com.au/forums/topic/468520-how-to-block-pcv-for-catch-can/#findComment-7804651 Share on other sites More sharing options...
blind_elk Posted January 14, 2017 Share Posted January 14, 2017 Just leave the valve there. What you are installing is an oil-air separator. It effectively inserts between the exhaust rocker cover and the turbo intake. Everything else remains "factory". Somewhere on this forum is a photo of my setup. Some people claim its not "pretty", but it works. (here it is to save you the trouble) Link to comment https://www.sau.com.au/forums/topic/468520-how-to-block-pcv-for-catch-can/#findComment-7804653 Share on other sites More sharing options...
r32-25t Posted January 14, 2017 Share Posted January 14, 2017 They aren't suppose to screw all the way in, the fact that it widens out and won't screw all the way in is what actually seals it go to Motorsport connections (or earls) and order one from them Link to comment https://www.sau.com.au/forums/topic/468520-how-to-block-pcv-for-catch-can/#findComment-7804657 Share on other sites More sharing options...
r32-25t Posted January 14, 2017 Share Posted January 14, 2017 22 minutes ago, blind_elk said: Just leave the valve there. What you are installing is an oil-air separator. It effectively inserts between the exhaust rocker cover and the turbo intake. Everything else remains "factory". Somewhere on this forum is a photo of my setup. Some people claim its not "pretty", but it works. (here it is to save you the trouble) He is talking about a gtr not a gtst Link to comment https://www.sau.com.au/forums/topic/468520-how-to-block-pcv-for-catch-can/#findComment-7804658 Share on other sites More sharing options...
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