54bobby Posted March 12, 2020 Share Posted March 12, 2020 So, I'm redoing all the vacuum/PVC lines just because they were helter skelter. A few years back I put a VC on her from I believe a 95 wrangler. Where the original vc had the hose to the air box on the front and to the tb in the rear, the new vc has the port on the front side and the fill cap in the middle and the PVC hose opening in the rear. Just to make sure I'm correct, The brass fitting for the side port I remember buying from sumit but can't remember whether its metered or not. This one should be correct? The hose on the rear runs to the air box but without the metered gromit , is this correct? Link to comment Share on other sites More sharing options...
ghetdjc320 Posted March 12, 2020 Share Posted March 12, 2020 I have a 96 valve cover on mine and the rear valve goes to vacuum. Front valve goes to air box Link to comment Share on other sites More sharing options...
mjeff87 Posted March 12, 2020 Share Posted March 12, 2020 ^^^yep Here's a visual of how I set mine up (97 cover). Link to comment Share on other sites More sharing options...
schardein Posted March 12, 2020 Share Posted March 12, 2020 I think the OP has a 4 cyl. Link to comment Share on other sites More sharing options...
54bobby Posted March 12, 2020 Author Share Posted March 12, 2020 49 minutes ago, schardein said: I think the OP has a 4 cyl. Corectamundo 2.5. Here's my vc with 2 valve openings highlighted. Link to comment Share on other sites More sharing options...
mjeff87 Posted March 12, 2020 Share Posted March 12, 2020 Ooops. My bad, sorry. My MJ used to have a 2.5 in it, but it was the stock cover. Link to comment Share on other sites More sharing options...
54bobby Posted March 12, 2020 Author Share Posted March 12, 2020 So, the metered link in the ingenious system would run from the small brass fitting on the front side of the vc, to the larger of the 2 vacuum connections below the tb and 5he larger hose with the elbow goes to the airbox. NOW if I can determine if the brass fitting is metered I'll be ok. Suppose to be 2.2mm correct? Link to comment Share on other sites More sharing options...
Jeep Driver Posted March 13, 2020 Share Posted March 13, 2020 6 hours ago, 54bobby said: Suppose to be 2.2mm correct? Take it out, clean it, look inside, tiny hole.........if it's metered, you'll know it. And yes, it must be metered. Link to comment Share on other sites More sharing options...
schardein Posted March 13, 2020 Share Posted March 13, 2020 Pic of the oem brass fitting on the front of the valve cover. Link to comment Share on other sites More sharing options...
54bobby Posted March 14, 2020 Author Share Posted March 14, 2020 10 hours ago, schardein said: Pic of the oem brass fitting on the front of the valve cover. when i bought the vc it didn't have the fitting. it was 6 or 7 years ago and i remember reading a write up on the vc swap and it had the fitting size and pn and i bought it from summit so i'm thinking it is metered but will have to check to be sure. what i do know is that when cleaning the tb the orifice that that vacuum line connects to on the tb was totally blocked to the point that it took a full can of tb cleaner and an hour of me going at it with a paper clip. Link to comment Share on other sites More sharing options...
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