Joey Mack Posted April 8, 2021 Share Posted April 8, 2021 are the "Down" bags over stretched and leaking? they look wrong... What do you see here MarkT? Quote Link to comment https://www.bigmacktrucks.com/topic/66408-how-to-track-down-air-leaks/page/4/#findComment-472238 Share on other sites More sharing options...
Mark T Posted April 8, 2021 Share Posted April 8, 2021 That looks like an HLM so it's air up air down...and it looks huck bolted, so probably from the modshop and has a solinoid somewhere 1 Quote Link to comment https://www.bigmacktrucks.com/topic/66408-how-to-track-down-air-leaks/page/4/#findComment-472240 Share on other sites More sharing options...
MackTech Posted April 8, 2021 Share Posted April 8, 2021 2 minutes ago, Joey Mack said: are the "Down" bags over stretched and leaking? they look wrong... What do you see here MarkT? I'm thinking since the air bled out the axle dropped and no air was put into the ride bags. I've seen that at the plant. Now if air was in there if question it. I'm thinking there is a leak at the ride bag quick release, the solenoid, or it's one of the lines between the solenoid and the quick release or between the quick release and the lift bags. Quote Link to comment https://www.bigmacktrucks.com/topic/66408-how-to-track-down-air-leaks/page/4/#findComment-472241 Share on other sites More sharing options...
Mark T Posted April 8, 2021 Share Posted April 8, 2021 I can almost remember those trucks on The NE Extension and thinking the bags were way over stretched. Like no rolling lobe action at all. Would make sense bags could be shot Quote Link to comment https://www.bigmacktrucks.com/topic/66408-how-to-track-down-air-leaks/page/4/#findComment-472242 Share on other sites More sharing options...
Dmurph2016 Posted April 8, 2021 Author Share Posted April 8, 2021 7 minutes ago, MackTech said: I'm thinking since the air bled out the axle dropped and no air was put into the ride bags. I've seen that at the plant. Now if air was in there if question it. I'm thinking there is a leak at the ride bag quick release, the solenoid, or it's one of the lines between the solenoid and the quick release or between the quick release and the lift bags. There is no air in the system so the axkes dropped, or they are overstretched? I’m not sure what that would look like? whays the ride back quick release? And what does the solenoid look like Quote Link to comment https://www.bigmacktrucks.com/topic/66408-how-to-track-down-air-leaks/page/4/#findComment-472243 Share on other sites More sharing options...
Mark T Posted April 8, 2021 Share Posted April 8, 2021 That's probably a picture after it sat and bled down. Really doesn't determine anything about where the leak is Quote Link to comment https://www.bigmacktrucks.com/topic/66408-how-to-track-down-air-leaks/page/4/#findComment-472244 Share on other sites More sharing options...
Mark T Posted April 8, 2021 Share Posted April 8, 2021 1 minute ago, Dmurph2016 said: There is no air in the system so the axkes dropped, or they are overstretched? I’m not sure what that would look like? whays the ride back quick release? And what does the solenoid look like You have to understand, lots of guys are willing to help, but it's not easy without being there ( lol ) the solinoid ? Depending make ?? They all look a little different. So not easy to describe other than it'll have airlines and a wire or two. But even if the axle has a tiny leak and something else on the same tank leaks more... there's not enough air to keep the axle up Quote Link to comment https://www.bigmacktrucks.com/topic/66408-how-to-track-down-air-leaks/page/4/#findComment-472247 Share on other sites More sharing options...
Dmurph2016 Posted April 8, 2021 Author Share Posted April 8, 2021 Just now, Mark T said: You have to understand, lots of guys are willing to help, but it's not easy without being there ( lol ) the solinoid ? Depending make ?? They all look a little different. So not easy to describe other than it'll have airlines and a wire or two. But even if the axle has a tiny leak and something else on the same tank leaks more... there's not enough air to keep the axle up I completely understand, without being here is difficult and I am trying my best to understand, but I also don’t know very much myself so it is difficult. Quote Link to comment https://www.bigmacktrucks.com/topic/66408-how-to-track-down-air-leaks/page/4/#findComment-472248 Share on other sites More sharing options...
Joey Mack Posted April 8, 2021 Share Posted April 8, 2021 Bingo!!! Quote Link to comment https://www.bigmacktrucks.com/topic/66408-how-to-track-down-air-leaks/page/4/#findComment-472249 Share on other sites More sharing options...
Mark T Posted April 8, 2021 Share Posted April 8, 2021 The soapy water trick will get you results. Once you get the hang of it, then maybe a picture of the leaky area or component ??? Quote Link to comment https://www.bigmacktrucks.com/topic/66408-how-to-track-down-air-leaks/page/4/#findComment-472250 Share on other sites More sharing options...
Dmurph2016 Posted April 8, 2021 Author Share Posted April 8, 2021 So think I found the dryer, it’s the big blue thing? Quote Link to comment https://www.bigmacktrucks.com/topic/66408-how-to-track-down-air-leaks/page/4/#findComment-472251 Share on other sites More sharing options...
Dmurph2016 Posted April 8, 2021 Author Share Posted April 8, 2021 (edited) I’m not sure why I can only upload 1 or 2 pictures at a time. But here’s a photo of under the frame. I appreciate all the help guys, I’m trying to track this down on my own but if I can’t I’ll end up having to find a shop to bring it to. Edited April 8, 2021 by Dmurph2016 Quote Link to comment https://www.bigmacktrucks.com/topic/66408-how-to-track-down-air-leaks/page/4/#findComment-472252 Share on other sites More sharing options...
Joey Mack Posted April 8, 2021 Share Posted April 8, 2021 Ta-Dah!!!! Quote Link to comment https://www.bigmacktrucks.com/topic/66408-how-to-track-down-air-leaks/page/4/#findComment-472254 Share on other sites More sharing options...
Dmurph2016 Posted April 8, 2021 Author Share Posted April 8, 2021 8 minutes ago, Joey Mack said: Ta-Dah!!!! What can I do to make sure the bed doesn’t come crashing down? I’m sorta afraid to be crawling around under it with it up. Is there a safe procedure or anything I’d you want to leave it up and look at the frame etc? Quote Link to comment https://www.bigmacktrucks.com/topic/66408-how-to-track-down-air-leaks/page/4/#findComment-472256 Share on other sites More sharing options...
Mark T Posted April 8, 2021 Share Posted April 8, 2021 Empty , a block of wood of some size . Yes the turquoise thing is the dryer Quote Link to comment https://www.bigmacktrucks.com/topic/66408-how-to-track-down-air-leaks/page/4/#findComment-472258 Share on other sites More sharing options...
Mark T Posted April 8, 2021 Share Posted April 8, 2021 It looks like someone added air tanks parallel to the frame. Those most likely supply all lift axle related air Quote Link to comment https://www.bigmacktrucks.com/topic/66408-how-to-track-down-air-leaks/page/4/#findComment-472259 Share on other sites More sharing options...
Dmurph2016 Posted April 8, 2021 Author Share Posted April 8, 2021 (edited) 6 minutes ago, Mark T said: It looks like someone added air tanks parallel to the frame. Those most likely supply all lift axle related air So those 2 tanks would be working along with one of the other systems, correct? I’m trying my best to understand how it all works. I do have some more pictures but it seems like I exceeded the data limit so not sure how I can upload them. Edited April 8, 2021 by Dmurph2016 Quote Link to comment https://www.bigmacktrucks.com/topic/66408-how-to-track-down-air-leaks/page/4/#findComment-472263 Share on other sites More sharing options...
Joey Mack Posted April 8, 2021 Share Posted April 8, 2021 i wish mark and i were thier.. we'd get it done.. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/66408-how-to-track-down-air-leaks/page/4/#findComment-472264 Share on other sites More sharing options...
Mark T Posted April 8, 2021 Share Posted April 8, 2021 Yes the truck was made with the tanks that look to be aluminum. Then someone added the two. Are you sure one of those two doesn't have a tiny hole rotted through ? 1 Quote Link to comment https://www.bigmacktrucks.com/topic/66408-how-to-track-down-air-leaks/page/4/#findComment-472266 Share on other sites More sharing options...
Dmurph2016 Posted April 8, 2021 Author Share Posted April 8, 2021 2 minutes ago, Mark T said: Yes the truck was made with the tanks that look to be aluminum. Then someone added the two. Are you sure one of those two doesn't have a tiny hole rotted through ? Not sure, very well could be. I just was cautious looking around with the bed up. I’ll get something to prop it and then check the tanks. Chances are they probably have pinholes rotted in them! Quote Link to comment https://www.bigmacktrucks.com/topic/66408-how-to-track-down-air-leaks/page/4/#findComment-472267 Share on other sites More sharing options...
Joey Mack Posted April 8, 2021 Share Posted April 8, 2021 there arent any props or pins on the bed for you to use? and yes wood blocks have always worked well, Quote Link to comment https://www.bigmacktrucks.com/topic/66408-how-to-track-down-air-leaks/page/4/#findComment-472268 Share on other sites More sharing options...
Dmurph2016 Posted April 8, 2021 Author Share Posted April 8, 2021 5 minutes ago, Joey Mack said: there arent any props or pins on the bed for you to use? and yes wood blocks have always worked well, Didn’t see any, I’ll have to get some wood under there and do some looking around Quote Link to comment https://www.bigmacktrucks.com/topic/66408-how-to-track-down-air-leaks/page/4/#findComment-472269 Share on other sites More sharing options...
Joey Mack Posted April 8, 2021 Share Posted April 8, 2021 THICK pieces...and square... 6x6 8x8... Quote Link to comment https://www.bigmacktrucks.com/topic/66408-how-to-track-down-air-leaks/page/4/#findComment-472270 Share on other sites More sharing options...
Dmurph2016 Posted April 8, 2021 Author Share Posted April 8, 2021 (edited) I need to find a new way to attach photos to the posts, since I’m out of room and I’m not really sure how to delete pictures and whatnot. I guess I gotta get out there and check some of the likes under the bed and see what’s leaking and go from there Edited April 8, 2021 by Dmurph2016 Quote Link to comment https://www.bigmacktrucks.com/topic/66408-how-to-track-down-air-leaks/page/4/#findComment-472271 Share on other sites More sharing options...
Joey Mack Posted April 8, 2021 Share Posted April 8, 2021 Heck... I don't see any props.. Quote Link to comment https://www.bigmacktrucks.com/topic/66408-how-to-track-down-air-leaks/page/4/#findComment-472272 Share on other sites More sharing options...
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