Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×
RV Trip Planning Discussions

Go Back   iRV2 Forums > THE CHASSIS CLUB FORUMS > Spartan Motorhome Chassis Forum
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
Thread Tools Search this Thread Display Modes
Old 12-26-2022, 07:27 PM   #15
Senior Member
Ray,IN's Avatar
Join Date: Aug 2001
Location: North America somewhere
Posts: 27,688
Dan, this Spartan MM compressed air system drawing shows some check valves.
Attached Thumbnails
Click image for larger version

Name:	Spartan air system MMS801001.jpg
Views:	15
Size:	216.1 KB
ID:	383327  
2000 Winnebago Ultimate Freedom USQ40JD, ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG 11B5MX,Infantry retired;Good Sam Life member,FMCA." My fellow Americans, ask not what your country can do for you, ask what you can do for your country. John F. Kennedy
Ray,IN is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free! RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 12-26-2022, 11:35 PM   #16
Senior Member
Unplanned Tourist's Avatar
Winnebago Owners Club
Workhorse Chassis Owner
Join Date: May 2016
Location: Kamloops, BC, 60 miles from the Center of the Universe
Posts: 6,615
There are many different air systems, so without actually seeing what you have, I couldn't say if your system relies on simply the check valve in the drier, or there's one at the intake on your wet tank.

Follow the large discharge line FROM the drier TO the wet tank. If there's a check valve on the tank, you will be able to see it.

I know we used to bypass air driers to get trucks back to work, and those always had a check valve at the tank.
Happy Glamping, Norman & Elna. 2008 Winnebago Adventurer 38J, W24, dozens of small thirsty ponies. Retired after 40 years wrenching on trucks! 2010 Ford Ranger toad with bicycles or KLR 650 in the back. Easy to spot an RVer, they always walk around with a screwdriver or wrench in one hand!
Unplanned Tourist is offline   Reply With Quote
Old 01-21-2023, 07:01 PM   #17
Junior Member
National RV Owners Club
Join Date: Jul 2016
Posts: 5
Originally Posted by dansawyer View Post
We went back out last evening and checked the dryer. The advice to check that was correct. The lower exhaust port was leaking a steady stream. The volumn was about equal to that from a normal exhale.

I will pull the dryer and rebuild it. I hope the check valve parts are included in a rebuild kit.

Because the primary service tank also leaks down I am concerned the check valve between the wet thank and the primary service tank is also leaking.

Thank you for pointing me to the dryer.
Did you fix your problem with a new air dryer? Also, wondered how your rear airbags looked like? I have the same motorhome as you. Looking to replace airbags.
eman588 is offline   Reply With Quote
Old 01-23-2023, 01:24 PM   #18
Senior Member
Join Date: Dec 2021
Posts: 203
Thanks for following up.

I have the new dryer in a box in the basement, ready to install.

I am curious abou the check valves. There is one built into the dryer on the dryer to wet tank path. Mine was definitely leaking, however it is interrmittant.

I believe by front ride height levelers were somewhat off. The left front was high, I have shortened the rod about 3/8 of an inch. That has helped level the riig. I plan to get under it this weekend and double check the ride height.
dansawyer is offline   Reply With Quote

air, spartan

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Help identifing function of air valve dansawyer Spartan Motorhome Chassis Forum 4 11-23-2022 09:40 PM
2002 Tradewinds LE Spartan - Wabco Meritor Air Dryer cartridge part number?? dansawyer National RV Owner's Forum 2 02-15-2022 11:15 PM
Need Help Identifing Problem eremartin1 Monaco Owner's Forum 1 04-02-2017 09:09 PM
Need Help Identifing My Under Bed Mounts ... Chiefrocka Trailer Towing and Tow Vehicles Discussion 7 03-19-2014 07:37 PM
Need Help Identifing Part Zac Newmar Owner's Forum 2 12-12-2007 02:17 PM

» Featured Campgrounds

Reviews provided by

All times are GMT -6. The time now is 02:42 AM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2023, vBulletin Solutions, Inc.