Grrrrallye 0 Posted June 10, 2015 Hi all, I have a 6 branch manifold that is US made. It has a stabbing on one of the branches for a sensor of some kind I assume. I don't need this port and so i'm looking to block it off but have no idea what size thread it might be. Any ideas anyone? I thought it may have been M14, but the pitch is wrong. Image for reference: Thanks Quote Share this post Link to post Share on other sites
Jim Bowen 1 Posted June 10, 2015 You can get a little gadget to measure the pitch, i usually work out the pitch and then the diameter afterwards (sometimes by trial and error) Could be a 1.5 or 1.75 pitch, hard to tell from a photo Quote Share this post Link to post Share on other sites
gozodog 10 Posted June 10, 2015 If it's built in US it's probably an imperial thread. Any US machines we've got at work are all imperial. Quote Share this post Link to post Share on other sites
