Kevin Schitoskey Posted December 25, 2022 Share Posted December 25, 2022 (edited) Hello, Long-time learner, recent new owner of a 99 Monaco Dynasty 40'. As we are getting acquainted, I noticed an unconnected air fitting - which is going to this component. It is located on the passenger side of the engine, adjacent to the air filter. What is this component and what does it do? Thanks, Kevin Edited December 25, 2022 by Kevin Schitoskey photo format changed Link to comment Share on other sites More sharing options...
Rocketman3 Posted December 25, 2022 Share Posted December 25, 2022 Can’t see the photo’s - what file is that? 1 Link to comment Share on other sites More sharing options...
Kevin Schitoskey Posted December 25, 2022 Author Share Posted December 25, 2022 Thanks Michael for the edit. Just changed format for pics - rookie mistake. Link to comment Share on other sites More sharing options...
Tom Cherry Posted December 26, 2022 Share Posted December 26, 2022 Have you chased the line BACK and see where it goes. If it is NEAR the Air Filter, wonder if it is the pressure differential line that goes to the "Air Filter" monitor. I am NOT an expert at the older units....can barely understand mine. BUT, there is usually an air line that runs to a monitor or a pop up device....that tells you the filter is getting clogged or needs servicing. Following the airline BACK to it's origin would be very helpful. AND/OR Getting a closer shot of the "small black thingie with the yellow label" (in my wife's vernacular) in the top photo sure would be helpful.... That's it for me.... Link to comment Share on other sites More sharing options...
Kevin Schitoskey Posted December 26, 2022 Author Share Posted December 26, 2022 I happened upon a post elsewhere and answered my own question - it is an air governor valve. Common part, cheap (~$20), and sometimes go out leaving you stranded without ability to release brakes. Now I just need to find out where the unconnected red line goes... Link to comment Share on other sites More sharing options...
Jdw12345 Posted December 26, 2022 Share Posted December 26, 2022 Air governor! Link to comment Share on other sites More sharing options...
Old Dog Posted December 26, 2022 Share Posted December 26, 2022 It's hard to tell exactly but in the second photo there is what appears to be a 90° elbow fitting pointed downward with nothing connected on the left side of the govern. I would start there first. Where ever it goes it's been disconnected for awhile based on all the dirt at both locations. Make sure your clean everything thoroughly inside and before and after you take stuff about. While identifying a replacement governor research how they are plumbed and if necessary trace the disconnected air hose. Hope this helps Link to comment Share on other sites More sharing options...
On_the_road Posted December 26, 2022 Share Posted December 26, 2022 You could try to locate the other end by connecting an air compressor to it. The other end should be obvious. I have a bunch of air lines hanging unconnected like this near my airbags. I assume that those lines have a leak somewhere, and it is easier to run a new line than to try to find the leak. Link to comment Share on other sites More sharing options...
Kevin Schitoskey Posted December 27, 2022 Author Share Posted December 27, 2022 Awesome. Thanks to everyone for your assistance - I recognize several of you from other posts. Very talented group on this site to be sure. After quite a bit of pondering and tracing plastic loom cover, the mystery red line appears to connect to the air filter minder. Should be pretty straight forward from here. And on another positive note - I followed some other advice to whack the one-way. valve on my aqua hot for a non-functioning zone. Worked well. I'm two for two today! Again, heartfelt thanks to everyone. Have a great New Year. Link to comment Share on other sites More sharing options...
Jdw12345 Posted December 27, 2022 Share Posted December 27, 2022 Hopefully your not thinking the air minder should be attached to the governor, it might have been disconnected and just tucked in an easy location. FYI. Link to comment Share on other sites More sharing options...
Kevin Schitoskey Posted December 28, 2022 Author Share Posted December 28, 2022 Thanks for checking - I'm confident there is a male threaded connection somewhere along the enormous air filter housing... Link to comment Share on other sites More sharing options...
Bill R Posted December 28, 2022 Share Posted December 28, 2022 12 hours ago, Kevin Schitoskey said: - I'm confident there is a male threaded connection somewhere along the enormous air filter housing... Kevin if you are looking for the other end of the filter minder connection it will not be on the filter housing but on the exit piping of the filter that goes to the turbo inlet. Link to comment Share on other sites More sharing options...
Kevin Schitoskey Posted March 17, 2023 Author Share Posted March 17, 2023 Thanks Bill. Much appreciated. Link to comment Share on other sites More sharing options...
Robert92867 Posted March 19, 2023 Share Posted March 19, 2023 You probably figured out the answer by now... It's an exhaust port "do not plug or block". Link to comment Share on other sites More sharing options...
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