RV Trip Planning Discussions

Go Back   iRV2 Forums > THE OWNER'S CORNER FORUMS > Newmar Owner's 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 10-03-2012, 08:37 AM   #1
Member
 
Workhorse Chassis Owner
Holiday Rambler Owners Club
Join Date: Jul 2012
Posts: 47
1998 Newmar Mountaire Questions

Hi Guys,

I'm looking at a '98 Mountainaire. I'm not in the market for a pusher but thought this might be an upgrade to my Gasser

Any real world experience with the Cummins 5.9? It only has 60,000 miles on it.......

Any other feedback on this model?

Thanks!
__________________

Drag Racer 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 10-03-2012, 09:15 AM   #2
Senior Member
 
Join Date: Feb 2012
Location: Baton Rouge, LA
Posts: 1,202
We had a 98 Discovery with the same engine. Never had any problems with it for ~82000 miles. There are 2 potential issues with the 5.9L that I am aware of.

One is the 53 block. It was manufactured in Brazil, I think, and several of them developed cracks in the block which required very expensive repair. I don't remember exactly where the engine block number is but I think it is on the curb side of the engine toward what fan area. Note, not all 53 blocks developed the problem, but it would be a consideration for me.

The other issue is a weak lift pump. The problem here is the VP44 injection pump requires at least 5 psi fuel pressure to operate effectviely. If it doesn't get that pressure, it can fail. The solution to this problem is to purchase either a fuel pressure gauge or warning light. We did the warning light which involves installing a pressure sensor in the fuel system, we chose a location after the second fuel filter and before the injector pump. Then running a wire to the dash where a 12v red LED is installed. that way you can monitor fuel pressure. If the light comes on you're pressure is too low. I have also heard of folks installing a bnackup lift pump to e on the safe side.

Otherwise, the 5.9L has an excellent reputation and is considered the leader in fuel economy.
__________________

__________________
Jim and Lynda, (Sophie, Jake, attack trained killer Shi-Tzus :-))

2003 Fleetwood Expedition 38N 2005 Saturn Vue
jlfbatonrg is offline   Reply With Quote
Old 10-03-2012, 09:30 AM   #3
Member
 
Workhorse Chassis Owner
Holiday Rambler Owners Club
Join Date: Jul 2012
Posts: 47
Great Feedback. Thanks! I will look into that

I wish i could find some specs on the chassis and motorhome capacities etc. The brochure i found online was pretty sparse.
Drag Racer is offline   Reply With Quote
Old 10-03-2012, 11:44 AM   #4
Member
 
Workhorse Chassis Owner
Holiday Rambler Owners Club
Join Date: Jul 2012
Posts: 47
Talked to Newmar. Great bunch! Very helpful
Drag Racer is offline   Reply With Quote
Old 10-03-2012, 02:12 PM   #5
Senior Member
 
BFlinn181's Avatar
 
Gulf Streamers Club
Join Date: Jan 2012
Location: Cincinnati
Posts: 19,924
I have a cummins 5.9, seems t be a great engine. The issue with the weak block (#53) would probably shown itself by now with a coolant leak if it was going to happen. After all, its been 14 years. Check what transmission the RV has. An Allison AT 542 is a 4 speed and has no lock up torque converter, means you can't have an engine brake without changing torque converter too. Also the AT 542 doesn't have much capacity to handle more torque, so you are limited to modifying engine HP & torque.
__________________

Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
BFlinn181 is offline   Reply With Quote
Old 10-04-2012, 01:04 PM   #6
Community Moderator
 
"007"'s Avatar


 
Nor'easters Club
Workhorse Chassis Owner
iRV2 No Limits Club
Join Date: Oct 2004
Posts: 30,112
Welcome to the forum.
Here is a brochure, tank sizes,chassis, weights and 99 Owners Guide which is latest for 98 year.
I had the 99 MA gas great coach others will fill in on DP side of your question.
Good luck and maybe a welcome to Newmar family.
__________________
98KSCA, 99MACA, 03 KSCA-3740- 8.1 Chev-- ALLISON Trans
VISIT the NEWMAR QUICK TIPS & EASYMODS 1 & 2
QUICK TIPS # 3
RV SYSTEMS & APPLIANCES & RECALLS --- TECH INFORMATION
"007" is offline   Reply With Quote
Old 10-04-2012, 05:43 PM   #7
Senior Member
 
Qwert66's Avatar
 
Newmar Owners Club
Join Date: Nov 2011
Location: Michigan
Posts: 875
Send a message via Skype™ to Qwert66
We have the 8.3 cummins 40' pusher. No real issues and we still love the coach after 54,000 miles. I know this sounds like an add for Newmar but it's the only coach we have had (with all the options at the time) and all is still well. I do the service myself and we are on the 3rd set of tires and second set of batteries. Since new I have added a larger inverter, flat screens, better 3 stage battery charger (converter), 83cu ft Frige/freezer in the basement and many gallons of Rotella 15w-40 plus many many filter and small battery changes for remotes, security system, flashlights, door bell etc. When we replace it will be the Newmar Essex or Newmar equivalent in the future as their customer service is great - period.
__________________
1999 Newmar Mountain Aire MADP 4080, Cummins ISC 8.3L, Allison, Spartan MM IFS, Howard Power Center, Chev Trailblazer LTZ Towed w/ BlueOx rigging, Segway X2.
www.shaw11.com
Qwert66 is offline   Reply With Quote
Old 10-05-2012, 06:06 AM   #8
Member
 
Newmar Owners Club
Join Date: Oct 2012
Posts: 99
Hello everyone. I'm new at this so bare with me. I am looking to buy a 2002 neamar mountain air its a 40 ft dp but looking at so many different brands and mnfctrs how do you know which one is a good one.Also is there a list of cheaper to upscale RVs so I know if I'm doing right thing?
This rv is like bran new condition but not sure if there's something better I should be looking at or if this is the best?
Any advise?
Ken326 is offline   Reply With Quote
Old 10-05-2012, 12:02 PM   #9
Community Moderator
 
"007"'s Avatar


 
Nor'easters Club
Workhorse Chassis Owner
iRV2 No Limits Club
Join Date: Oct 2004
Posts: 30,112
Ken welcome to irv2 and the Newmar forum.
You are considering one of the best many happy owners.
2002 Mountain Aire and Owners Guide.
Enjoy the forums.
It would be better to post your questions in the NEW THREAD found in upper left corner of forum page. Your question could be lost on someone elses thread.
__________________

__________________
98KSCA, 99MACA, 03 KSCA-3740- 8.1 Chev-- ALLISON Trans
VISIT the NEWMAR QUICK TIPS & EASYMODS 1 & 2
QUICK TIPS # 3
RV SYSTEMS & APPLIANCES & RECALLS --- TECH INFORMATION
"007" is offline   Reply With Quote
Reply

Tags
newmar



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


» Featured Campgrounds

Reviews provided by


All times are GMT -6. The time now is 12:50 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
×