TIMBERTIGER Posted July 24, 2014 Share Posted July 24, 2014 I'm trying to find a plug for this hole on my manifold and I can't figure out what thread type it is. Also, does anyone know what thread type the EGR exhaust line is? I think it's the same as this hole. Some metric pipe thread? Link to comment Share on other sites More sharing options...
TIMBERTIGER Posted July 28, 2014 Author Share Posted July 28, 2014 The dealership says it's 3/8 NPT but the plugs I bought don't fit. Link to comment Share on other sites More sharing options...
Gloyale Posted July 28, 2014 Share Posted July 28, 2014 M14 Stick a sparkplug in it lol Link to comment Share on other sites More sharing options...
rdweninger Posted July 28, 2014 Share Posted July 28, 2014 Good one, G. Not only would that work, but would be a great conversation piece. Make sure it is NGK. Subaru's new 5-cyl. 1 Link to comment Share on other sites More sharing options...
jono Posted July 28, 2014 Share Posted July 28, 2014 +1 on spark plug. You might wanna bust the ceramic in a safe work practice and weld the hole up. Or get another coil and lead Link to comment Share on other sites More sharing options...
Hsoj Posted July 29, 2014 Share Posted July 29, 2014 I just left the thermosesnsor in there. You could try to take the thing to Fittings inc. to find a plug to match. They would have something I bet. Link to comment Share on other sites More sharing options...
TIMBERTIGER Posted July 30, 2014 Author Share Posted July 30, 2014 It's not m14. I can make something work but I want something that looks clean and proper. This is my 4th weber swap and I don't like jimmy rigging things like I have in the past. Before, I would cut the thermo sensor flush and put it back in and I would also cut the EGR line and fill both of the fittings with high temp silicone and use those as plugs but even though all of those meathods work great I want it to look profesional. I plan on doing many more builds in the future so I am trying to streamline the whole process and work out all of the kinks that people usually just "work around". Once I find permanent solutions to all of these little problems I plan on making a step by step guide. Thanks for the input! Link to comment Share on other sites More sharing options...
Hsoj Posted August 1, 2014 Share Posted August 1, 2014 Try Fittings Inc. They will have it, though you might have to bring your manifold in. They are is the Sodo district in Seattle on 6th ave S. Link to comment Share on other sites More sharing options...
Gloyale Posted August 1, 2014 Share Posted August 1, 2014 Mine all have a Hex plug in that hole. Link to comment Share on other sites More sharing options...
TIMBERTIGER Posted August 1, 2014 Author Share Posted August 1, 2014 I've had one car that had a plug and I couldn't get it out. not sure what the difference is and why some cars have a plug and some don't. Link to comment Share on other sites More sharing options...
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