RV Trip Planning Discussions

Go Back   iRV2 Forums > THE CHASSIS CLUB FORUMS > Workhorse and Chevrolet Chassis Motorhome Forum
Click Here to Login

Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  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 08-20-2017, 05:34 AM   #1
Member
 
Kountry 2SUM's Avatar
 
Newmar Owners Club
Spartan Chassis
Join Date: Jul 2015
Location: Edgewood, NM
Posts: 98
Help Please

This is always my first stop when facing yet another RV "challenge on the road. I'm a fix-it guy so I love these things because "the list" never ends.

2004 Newmar Mountain Aire 3778 W22 8.1L WH chassis

Our current "challenge"- We just launched out on a 5 week tour of the southern states from Albuquerque. Had a good service check before leaving, lube, oil, brakes, all systems A-ok. We get to Childress, TX. on our way to see the DW's sister in Burleson, TX and spend the night at Walmart. Yesterday morning I wrapped it all up and started the engine and do my normal walk around visual inspection, but when I get to the right front wheel I hear an exhaust leak. We pulled out of the Walmart parking lot and eased onto the highway but I couldn't hear the leak inside the RV. So the first bridge we hit I had the DW open her window and sure enough it was loud and clear. I can't determine if it's the manifold or the donut on the exhaust pipe flange but suspect the manifold as the sound is coming from one cylinder and not all cylinders. . So we are here in Burleson TX visiting now.

We planned to pull out tomorrow (Monday) for Destin Florida, however I would like to get this fixed before we leave. Here's my questions:
1. Does anyone know of a reputable mechanic in the south Ft. Worth area? (I've browsed the service center thread and didn't find anything)
2. Has anyone attempted this repair themselves and if so what challenges besides rusty bolts and 100 degree weather am I facing. If it's the donut that shouldn't be a major deal but the exhaust manifold is a different puppy.
3. Does the stock manifold take a gasket or am I looking at a new exhaust manifold?
4. Worse case scenario is we have to drive it in this condition. Is it safe to drive the engine like this for another 4500 miles?

Thanks for any help you can give us.
__________________

__________________
Terry & Colleen
Edgewood, NM
2010 Newmar Dutch Star 4333
Kountry 2SUM is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com 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 08-20-2017, 06:49 AM   #2
Senior Member
 
Join Date: Oct 2015
Location: Brighton, MI
Posts: 766
Most likely as you suspect it's the manifold. The manifold does use a gasket, metal. It's also most likely not a gasket failure per say. The manifold studs have stretched or even broken and/or the manifold itself is cracked. I installed a set of headers on ours so I know what is involved. It's not something you want to tackle yourself on the road. You need to remove the dipstick tube from the oil pan as it runs through the manifold. You need to remove the plug wires and plugs so you don't damage them while man handling the manifold and it's possible to ruin a plug wire while trying to remove it. Then the real fun starts, you have remove all the studs and hope none snap off or are already snapped. If everything comes apart with no broken studs you can slide a new gasket in and install new studs. Any broken studs and the manifold needs to be removed from the exhaust pipe so you can access the broken stud. If it's not broken off below the surface of the head you can weld a nut on the end of it. The heat from welding will usually break it free and it should come right out. If it's broken off below the surface of the head, well that's more fun. If it's close to the surface you may be able to weld a smaller bolt to the end of it or you'll have to drill it out. Anyway it's not a lot fun and access on our MH wasn't the best. Driving as is? The hot exhaust will continue to burn away the gasket where ever it's leaking. Probably won't hurt the head as it's cast iron just try not to push it too hard, like accelerating quickly as that increases exhaust pressure and causes it to leak more.
__________________

__________________
Hank & Lynda
2003 Winnebago Adventurer 35U, Workhorse W22
70ChevelleSS is offline   Reply With Quote
Old 08-20-2017, 09:02 AM   #3
Senior Member
 
what next's Avatar
 
Newmar Owners Club
Fleetwood Owners Club
Workhorse Chassis Owner
Spartan Chassis
Join Date: Feb 2012
Location: Northern IL
Posts: 540
Holt Cat service on 549 West Loop took care of my DP when I had an emergency. I called after hours they returned the call in a short time. I got there at lunch next day, by 3 I was fixed and on my way. Yes it is heavy equipment repair but they had several motorhomes in. Rush truck had worked on it to the day before $ 700. Holt $350 found the electric problem and fixed. Good luck
__________________
2010 Dutch Star 4333
2009 Honda Accord- Brakemaster
what next is offline   Reply With Quote
Old 08-21-2017, 05:42 AM   #4
Senior Member
 
Duner's Avatar
 
Winnebago Owners Club
Workhorse Chassis Owner
Join Date: Jul 2002
Location: Fulltiming now in- SoCal on the move
Posts: 1,363
I would get under there in the fender well and make sure it isn't just the exhaust donut leaking. Mine cracked and a chunk was missing.

Good luck,
Bill
__________________
Bill (Dune'r) & Helen
Last of the Chieftains, 2004 39T, W22, UP tune, Banks, Koni's, Safe-T-Plus, SMI brake
2017 Lincoln MKZ Hybrid towed 4-down
https://www.irv2.com/attachments/signaturepics/sigpic23522_1.gif]
Duner is offline   Reply With Quote
Old 08-21-2017, 02:35 PM   #5
Senior Member
 
TexasTom's Avatar


 
Newmar Owners Club
Fleetwood Owners Club
Join Date: Jul 2013
Location: DFW
Posts: 1,272
I may be a little late to the party, but Lynn Smith Chevrolet in Burleson has a good reputation as being a good Workhorse service center.
__________________
2009 Fleetwood Excursion 40E
TexasTom is offline   Reply With Quote
Old 08-23-2017, 06:27 AM   #6
Senior Member
 
boatman10's Avatar
 
Join Date: Oct 2015
Location: northeast florida beach
Posts: 245
even if its just a donut, I needed a breaker bar AND a cheater and all I could get on it, and I'm in pretty good shape.


should not hurt to drive it, accelerate slowly.
__________________
Florida Scott
2001 R Vision M242 25' 8.1L GM Workhorse
boatman10 is offline   Reply With Quote
Old 08-28-2017, 02:22 PM   #7
Senior Member
 
eddndee's Avatar
 
Join Date: Aug 2017
Location: Puget Sound
Posts: 381
Probably information everyone already knows but here in the northwest we have lots of mountains. If we stop after a long run, we never turn off the engine immediately because the cool mountain air against the hot manifold will frequently cause a brittle fracture to occur.
EdD
1998 Safari 2620 Class C
__________________

__________________
EdD
1998 Safari 2620 Class C
Costco member
eddndee is offline   Reply With Quote
Reply



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
Please please help with gray water problem ParryTack Class A Motorhome Discussions 108 04-01-2013 08:56 AM
New guy yelling HELP!! Me please,please bigeddie Travel Trailer Discussion 15 12-29-2012 08:03 AM
Help, Help, Help, Oh Please Help. Possum RV Systems & Appliances 11 04-23-2012 10:35 PM

» Featured Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 01:59 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.