{"id":1320,"date":"2022-07-03T00:55:05","date_gmt":"2022-07-03T07:55:05","guid":{"rendered":"https:\/\/www.nickpisca.com\/diesel\/?p=1320"},"modified":"2022-07-03T00:55:16","modified_gmt":"2022-07-03T07:55:16","slug":"luckiest-ac-leak-find-ever","status":"publish","type":"post","link":"https:\/\/www.nickpisca.com\/diesel\/hvac\/air-conditioning\/luckiest-ac-leak-find-ever\/","title":{"rendered":"Luckiest AC Leak Discovery Ever"},"content":{"rendered":"

Getting ready for some time in the desert, so after I did the 7.3-to-6.9 swap, I needed to recharge the AC system.\u00a0 I figured I would pull a vacuum just to make sure it didn’t leak (it didn’t leak before, so I knew it was going to be good to go), and waited an hour.\u00a0 Came back to find the system back to atmospheric pressure.\u00a0 Wild.\u00a0 It was a really slow leak, maybe one inch of mercury every 3-5 minutes.\u00a0 I pulled another session of vacuum and tried to listen with a hose.\u00a0 No luck.<\/p>\n

The van is a PITA if you get a leak, because there is a front and rear AC system.\u00a0 Lots of places where it could potentially leak.\u00a0 Since I didn’t mess with anything in the rear or cab, I figured the leak had to be near the compressor or condensor.<\/p>\n

I disconnected the vac pump and put my air compressor on the gauge inlet.\u00a0 Put in about 20 psi and went back to listening with a hose.\u00a0 I’ve never had good luck with doing the redneck stethescope, but I had nothing to lose.\u00a0 Checked the connections at the condensor, and those were quiet.\u00a0 Checked by the compressor, and that was quiet too.\u00a0 I also checked the AC hose hubs in the back and by the dryer as well.\u00a0 Nothing was apparent.<\/p>\n

The leak was extremely slow, so I knew this was going to be a long shot.\u00a0 I returned to the connections at the FS-6 compressor<\/a> just to see if maybe I missed something.\u00a0 We did remove the compressor during the engine swap, so maybe the connections were loose.\u00a0 I put the hose in my ear and moved the opposite end around the compressor inlets and outlets.\u00a0 By the passenger side connection, I heard the slightest hissing noise.\u00a0 It was almost inperceptible.\u00a0 I almost thought it was some static sound from somewhere else.<\/p>\n

The more I scanned that area, the more I was convinced that slight hissing was my leak.\u00a0 I took a 10mm socket and gave it a slight turn.\u00a0 Open made it louder, closed made it quieter.\u00a0 WOO!\u00a0 Found it!<\/p>\n

Unfortunately, tightening it down didn’t fix it.\u00a0 I took off the connection and inspected the o-rings.\u00a0 Sadly, one must’ve been cut during the engine swap process, which is likely since those fat AC hoses don’t nest out of the way very well, and we must have cut them on a exhaust manifold or cylinder head on the way into the engine bay.<\/p>\n

I dove into my AC parts and found 2 sets of o-rings, but they were for VW’s.\u00a0 My Ford sets were out.\u00a0 Nothing would fit into the inset for the compressor with what I got in my supply.\u00a0 I called around and found a Ford kit on the central part of town, got the set, and installed it right away.\u00a0 Held vacuum for the entire night.\u00a0 That’s tight.<\/p>\n","protected":false},"excerpt":{"rendered":"

Getting ready for some time in the desert, so after I did the 7.3-to-6.9 swap, I needed to recharge the… Read more »<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[157],"tags":[237],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.nickpisca.com\/diesel\/wp-json\/wp\/v2\/posts\/1320"}],"collection":[{"href":"https:\/\/www.nickpisca.com\/diesel\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.nickpisca.com\/diesel\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.nickpisca.com\/diesel\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.nickpisca.com\/diesel\/wp-json\/wp\/v2\/comments?post=1320"}],"version-history":[{"count":2,"href":"https:\/\/www.nickpisca.com\/diesel\/wp-json\/wp\/v2\/posts\/1320\/revisions"}],"predecessor-version":[{"id":1322,"href":"https:\/\/www.nickpisca.com\/diesel\/wp-json\/wp\/v2\/posts\/1320\/revisions\/1322"}],"wp:attachment":[{"href":"https:\/\/www.nickpisca.com\/diesel\/wp-json\/wp\/v2\/media?parent=1320"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nickpisca.com\/diesel\/wp-json\/wp\/v2\/categories?post=1320"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.nickpisca.com\/diesel\/wp-json\/wp\/v2\/tags?post=1320"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}