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Old 12-02-2016, 10:33 PM   #1
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Considering 1997 MADP...

We are seriously considering a 1997 MADP 325hp Cummins that we found not far from us. Planning to start full-timing this spring. Priced at $25k, has w/d, autosat, exterior is beautiful, interior just needs updating. Doesn't have hydronic heat, but considering adding twintemp system if we purchase it.

What issues do I need to be looking for regarding this year/model?

Thanks in advance for any assistance.
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Old 12-02-2016, 11:15 PM   #2
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If the Auto Sat has not been updated, it is probably not working. Dose the seller have a sat Dish / Direct receiver hooked up so you can see it work? Service records?
Full time since Nov 2012 RVM#41 Gary and Marian Hill 2001 Monaco Dynasty Jack 38' 370 hp ....If it ain't broke I can still fix it.
Like putting shoes on an octopuss, so are the days of our lives....
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Old 12-03-2016, 08:03 AM   #3
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If you have someone with a lot of Newmar RV experience that you can take with you to really look it over, take them. I missed a lot of stuff when I looked by myself because I had no RV experience.

Plan on changing all fluids and filters, flush the radiator and replace the 2 thermostats, check tire date codes and battery dates and condition.

Plan on doing a full service on the genny to include belt and thermostat.

Check that the jacks work in both auto and manual.

Plan on replacing any '97 era electronics and figure out how you'll be mounting new TVs and such.

Not sure what options the MA came with in that year - our '97 London Aire has them all - so more things to check to see if they are working. Spend some time looking through the owners guide (I'm sure 007 will be around soon to give you a link to one) before you do your final look - this way you'll know what to look for. Here is a link to Newmars archive -

If you have the VIN call Newmar and ask them for a build sheet on the coach.

Plan on using a can of lube to lube anything that moves. Have silicone, pb blaster and some lube that stays around a while.

Check all the awnings, plan on replacing straps at a minimum.

Plan on replacing the running lights at the top of the cap, especially if they are original, like mine were. They are a potential source of water intrusion.

Plan total service on the AC units to include replacing the shrouds if they are original. Take off the shrouds, open up the front and clean the entire unit thoroughly to include vacuuming, blowing out fins and washing with wet rag where needed. Don't forget to clean out the water drain pan and drain runs out of the the unit. There is a chance the control for the AC units won't work properly. You probably have the 4 button control (like me). To switch zones you press the top 2 buttons at the same time and release to change among the 2 zones. Make sure both AC are working. If you can't switch among the zones (like I can't) there is an easy fix if it's just the switch contacts that need to be reformed.

Check that all the appliances work.

Check that the fantastic vents work.

That's a start.
Rick and Larrie Dee
1997 40' Newmar London Aire DP CTA 8.3 (Mechanical) 325 Spartan MM
Bringing her back to her glory.
'08 Jeep GC Overland.
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Old 12-03-2016, 10:17 AM   #4
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Welcome to the forum and irv2 SKIMEDICKC.
Here is a Brochure and a Owners Guide for you.
Is your engine a front engine DP? -- This is a FRED engine 1996 KADP
Below in my signature you will find links to many more for your Newmar very important.
Here is a link to 1999 TSB's that maybe of interest to some same items for your year coach items do not change that fast year to year in same time period.
This link will explain the COM_NET network.
Enjoy the forum and safe travels.
98KSCA, 99MACA, 03 KSCA-3740- 8.1 Chev-- ALLISON Trans
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Old 12-03-2016, 11:43 AM   #5
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This is a rear engine DP with side radiator. Appreciate all the other links, will definitely start my research.

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Old 02-22-2017, 05:30 PM   #6
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Roof Roof Roof....would check that extensively

Had a '98 MADP with the 325hp 8.3 mechanical and it was a very stout and reliable rig.
Here is my opinion, if its in good shape the price is good for that rig, hopefully has a slide out.
I would recommend having 10k stashed away for upgrading interior and fighting off demons that will arise just due to age. I would also get an oil sample run if you can just to get the lowdown on the engine.
1998 Newmar Mountain Aire 40'
8.3 Mechanical Cummins
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