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Old 03-22-2019, 07:33 PM   #1
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Newmar Owners Club
Spartan Chassis
Join Date: Apr 2017
Location: Bath, NY
Posts: 188
Re-seal Engine Compartment Cover

Has anyone done this? I get an engine smell in the bedroom when traveling, so I know it needs to be done. I was wondering what the best seal might be for this application?

2006 Newmar Mountain Aire 4301, Cinnabar
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Old 03-22-2019, 07:55 PM   #2
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You could contact Newmar and get the replacement from them which would be the best. You could also go to ACE or Lowe's and get cut to size your self. I was just putting heat insulation on our 18 London Aire to cut down the heat in the rear bath after traveling for a couple hours or more. If you take engine cover off you might be able to repair the seal without replacing the complete seal.
Newmar Man

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Old 03-22-2019, 08:12 PM   #3
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Newmar Owners Club
Vintage RV Owners Club
Spartan Chassis
Join Date: May 2016
Location: Washington
Posts: 241
We had the same problem last year. I was looking at resealing when I found the reason wasn't the seal, rather a crack in the pipe between the turbo and PacBrake. Got that fixed and the smell went away. Chances are exhaust isn't being drawn back from the end of the exhaust pipe and probably from somewhere in the exhaust system.
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Old 03-23-2019, 07:37 AM   #4
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I used dense foam window seal and did a double wide seal to fill obvious gaps in original installation. In other words, it wasn't airtight from day one. All good now. Messy job !!!
2005 Newmar Essex 4502, 2013 Caddy SRX
1997 HR Endeavor 37, CAT, 1996 Geo Tracker
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cover, engine, seal

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