Deere Mack Posted August 7, 2019 Share Posted August 7, 2019 Good afternoon. I'm having trouble figuring out the quick connect air fittings on the firewall. I've got a couple leaking but cant see how to remove them. I think they have an o-ring behind the fittings? Any help would be appreciated! Quote Link to comment https://www.bigmacktrucks.com/topic/58486-2005-granite-cv713-air-leak-on-firewall/ Share on other sites More sharing options...
terry Posted August 7, 2019 Share Posted August 7, 2019 If you are talking the yellow and two brown fittings, push them in and tubing will slide out. terry Quote Link to comment https://www.bigmacktrucks.com/topic/58486-2005-granite-cv713-air-leak-on-firewall/#findComment-429512 Share on other sites More sharing options...
Deere Mack Posted August 7, 2019 Author Share Posted August 7, 2019 1 minute ago, terry said: If you are talking the yellow and two brown fittings, push them in and tubing will slide out. terry That's what I thought. After looking at this photo closer they may be to dirty to push in. Once the tubing is out, can the fitting be removed or repaired? Quote Link to comment https://www.bigmacktrucks.com/topic/58486-2005-granite-cv713-air-leak-on-firewall/#findComment-429513 Share on other sites More sharing options...
terry Posted August 7, 2019 Share Posted August 7, 2019 1 minute ago, Deere Mack said: That's what I thought. After looking at this photo closer they may be to dirty to push in. Once the tubing is out, can the fitting be removed or repaired? Maybe spray some kind of cleaner before pushing in, then when tubing is out clean it good and reassemble, push tubing in and slide collar out. might just seal it up. terry Quote Link to comment https://www.bigmacktrucks.com/topic/58486-2005-granite-cv713-air-leak-on-firewall/#findComment-429515 Share on other sites More sharing options...
Deere Mack Posted August 7, 2019 Author Share Posted August 7, 2019 Thanks Terry, I'll clean them up and give it another try in the morning. Quote Link to comment https://www.bigmacktrucks.com/topic/58486-2005-granite-cv713-air-leak-on-firewall/#findComment-429519 Share on other sites More sharing options...
tjc transport Posted August 7, 2019 Share Posted August 7, 2019 as said, those are synflex connectors and push in to remove the air line. you will need to spray penetrating oil in the fittings to loosen up the crud that has built up over time. then possibly blow out with compressed air to get it out of the fitting before trying to remove the line. Quote when you are up to your armpits in alligators, it is hard to remember you only came in to drain the swamp.. Link to comment https://www.bigmacktrucks.com/topic/58486-2005-granite-cv713-air-leak-on-firewall/#findComment-429523 Share on other sites More sharing options...
Mack Technician Posted August 9, 2019 Share Posted August 9, 2019 If it doesn't reseal, and its not a sensor on the opposite side, punch a hole and run it though to its mate. Easier that replacement of bulkhead. Quote Link to comment https://www.bigmacktrucks.com/topic/58486-2005-granite-cv713-air-leak-on-firewall/#findComment-429706 Share on other sites More sharing options...
hatcity Posted August 9, 2019 Share Posted August 9, 2019 a GOOD truck parts place sells a set of pliers for them. Used to have a set but still clean real good. may need a 3/8 open end wrench to get it to push in Quote Success is only a stones throw away.................................................................for a Palestinian Link to comment https://www.bigmacktrucks.com/topic/58486-2005-granite-cv713-air-leak-on-firewall/#findComment-429742 Share on other sites More sharing options...
JoeH Posted August 10, 2019 Share Posted August 10, 2019 Used those in high school in our robotics program, they're not as good as the ferrel type synflex fittings but these are faster to change out the synflex. Push in on the tubing, hold the collar depressed and the synflex should pull out while you depress the collar. To install new synflex your cut has to be square and clean, no burr. Just shove the synflex in then give it a tug to make sure the fitting got a bite. No need to do anything with collar on install. Quote Link to comment https://www.bigmacktrucks.com/topic/58486-2005-granite-cv713-air-leak-on-firewall/#findComment-429745 Share on other sites More sharing options...
Deere Mack Posted August 10, 2019 Author Share Posted August 10, 2019 Thanks for the all the tips! I haven't got back around to this problem just yet, other problems got put in front of this problem. Think I bought someone else's problem or my ocd is getting the best of me. I like everything to be right! Quote Link to comment https://www.bigmacktrucks.com/topic/58486-2005-granite-cv713-air-leak-on-firewall/#findComment-429785 Share on other sites More sharing options...
Mack Technician Posted August 23, 2019 Share Posted August 23, 2019 On 8/10/2019 at 8:57 AM, Deere Mack said: Thanks for the all the tips! I haven't got back around to this problem just yet, other problems got put in front of this problem. Think I bought someone else's problem or my ocd is getting the best of me. I like everything to be right! Your OCD getting rubbed raw on that AI engine? Or liking it? Quote Link to comment https://www.bigmacktrucks.com/topic/58486-2005-granite-cv713-air-leak-on-firewall/#findComment-430686 Share on other sites More sharing options...
Deere Mack Posted August 24, 2019 Author Share Posted August 24, 2019 20 hours ago, Mack Technician said: Your OCD getting rubbed raw on that AI engine? Or liking it? It's not bad. Seems to have plenty of power on the top side but a little sluggish coming out of the hole. If I'm loaded and on a slight incline it seems to want the low gear to get going and it's supposed to have 4.64 rears. The mack trans is what I'm not thrilled about, it's a lot different than the Eaton fuller 8LL in my CH. Quote Link to comment https://www.bigmacktrucks.com/topic/58486-2005-granite-cv713-air-leak-on-firewall/#findComment-430740 Share on other sites More sharing options...
Deere Mack Posted August 24, 2019 Author Share Posted August 24, 2019 21 hours ago, Mack Technician said: Your OCD getting rubbed raw on that AI engine? Or liking it? Mine's got the AMI 370 1 Quote Link to comment https://www.bigmacktrucks.com/topic/58486-2005-granite-cv713-air-leak-on-firewall/#findComment-430741 Share on other sites More sharing options...
Mack Technician Posted August 24, 2019 Share Posted August 24, 2019 Time to come over to the dark-side and drive a truck that makes Prius drivers swear out loud? The payback is that you won't have to shift that T300 Mack transmission so much. AMI-370 is a good program and candidate. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/58486-2005-granite-cv713-air-leak-on-firewall/#findComment-430746 Share on other sites More sharing options...
Popular Post HeavyGunner Posted August 24, 2019 Popular Post Share Posted August 24, 2019 2 2 Quote The problems we face today exist because the people who work for a living are outnumbered by the people who vote for a living.The government can only "give" someone what they first take from another. Link to comment https://www.bigmacktrucks.com/topic/58486-2005-granite-cv713-air-leak-on-firewall/#findComment-430747 Share on other sites More sharing options...
Deere Mack Posted August 25, 2019 Author Share Posted August 25, 2019 On 8/24/2019 at 11:50 AM, Mack Technician said: Time to come over to the dark-side and drive a truck that makes Prius drivers swear out loud? The payback is that you won't have to shift that T300 Mack transmission so much. AMI-370 is a good program and candidate. Yes sir I'm very impressed and really appreciate that thread! I've got to see if it'll be worthy. Got a few repairs and adjustments first and that was the plan all along. Might be my winter project. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/58486-2005-granite-cv713-air-leak-on-firewall/#findComment-430819 Share on other sites More sharing options...
JoeH Posted August 25, 2019 Share Posted August 25, 2019 On 8/24/2019 at 12:59 PM, HeavyGunner said: I've got a red can o Prius repellent just like that! Quote Link to comment https://www.bigmacktrucks.com/topic/58486-2005-granite-cv713-air-leak-on-firewall/#findComment-430824 Share on other sites More sharing options...
Deere Mack Posted October 31, 2019 Author Share Posted October 31, 2019 (edited) UPDATE! I messed with this for a while before giving up a replacing the air manifold on the firewall. Got the quick connects out of the manifold and the o ring. Cleaned it all up, trimmed up the lines etc. and I believe if I could have found the exact o ring I could have repaired it, but good luck with that. The o rings get hard and crack. Went all over north Alabama looking for that thing. If its not perfect it will not seal off. Edited October 31, 2019 by Deere Mack 1 Quote Link to comment https://www.bigmacktrucks.com/topic/58486-2005-granite-cv713-air-leak-on-firewall/#findComment-434865 Share on other sites More sharing options...
Mack Technician Posted October 31, 2019 Share Posted October 31, 2019 You throw it away? Quote Link to comment https://www.bigmacktrucks.com/topic/58486-2005-granite-cv713-air-leak-on-firewall/#findComment-434912 Share on other sites More sharing options...
Deere Mack Posted November 2, 2019 Author Share Posted November 2, 2019 On 10/31/2019 at 3:48 PM, Mack Technician said: You throw it away? yes. I'm trying to eliminate the negative things in my life these days and it was to light for a boat anchor. 1 1 Quote Link to comment https://www.bigmacktrucks.com/topic/58486-2005-granite-cv713-air-leak-on-firewall/#findComment-435020 Share on other sites More sharing options...
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