| Replacing gasket under roof A/C [message #221761] |
Mon, 09 September 2013 10:55  |
armandminnie
Messages: 864
Registered: May 2009
Location: Marana, AZ
Karma: 2
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I need to replace the gasket under my rear roof A/C unit and I am wondering how to do it. How heavy is it? I was thinking of either gradually jacking it up using pieces of 2x4 under each side or end until I could get to the gasket or tilting it toward the front or a side but don't know if that would damage the roof or the unit. Suggestions?
Armand Minnie
Marana, AZ
'76 Eleganza II TZE166V103202
visit my gmc blog
click here to visit gmcws.org
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| Re: [GMCnet] Replacing gasket under roof A/C [message #221779 is a reply to message #221764] |
Mon, 09 September 2013 14:04  |
armandminnie
Messages: 864
Registered: May 2009
Location: Marana, AZ
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| Robert Mueller wrote on Mon, 09 September 2013 09:30 |
Two people can lift it easily (you & your wife?) it depends on if / how badly the old gasket is stuck to the roof.
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Rob, thanks for the reply. I'm never going to get my wife on the roof but I think you are telling me that it is not heavy? Maybe I can do the 2x4 thing until I get it high enough to tip up on its end?
Armand
Armand Minnie
Marana, AZ
'76 Eleganza II TZE166V103202
visit my gmc blog
click here to visit gmcws.org
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| Re: [GMCnet] Replacing gasket under roof A/C [message #221782 is a reply to message #221779] |
Mon, 09 September 2013 14:38 |
tphipps
Messages: 3005
Registered: August 2004
Location: Spanish Fort, AL
Karma: 9
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Roof A/C's weigh about 100 pounds. Just awkward for one person. If you don't have a pod in the way, move it forward of the current opening and clean the edge around the opening. Re-caulk and gently drop it back in.
Good luck, and don't fall off the roof.
Tom, MS II
2012 Phoenix Cruiser model 2552
KA4CSG
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| Re: [GMCnet] Replacing gasket under roof A/C [message #222472 is a reply to message #221782] |
Sat, 14 September 2013 22:21 |
Chris Tyler
Messages: 458
Registered: September 2013
Location: Odessa FL
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I would add to that to be careful with the shroud as it may be brittle with age and break easily. Resist the urge to add too much sealant. Also, you nay want to check the pan for a rusted out area that may be an alternate leak sorce.
76 Glenbrook
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| Re: Replacing gasket under roof A/C [message #222478 is a reply to message #221761] |
Sat, 14 September 2013 23:39 |
armandminnie
Messages: 864
Registered: May 2009
Location: Marana, AZ
Karma: 2
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Senior Member |
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Thanks for the info everyone. I didn't get around to doing it yet and it is almost time to leave for Coos Bay - family visits in Calif on the way - so I'll have to do it when I get back. Current plan is to lift it onto some 2x4s and then slide it forward until I can stand it on the flat end. I am 99 percent sure that it is the gasket that is leaking - the pan is not real rusty and keeping the coach a tad off level keeps the leak from causing problems.
Armand Minnie
Marana, AZ
'76 Eleganza II TZE166V103202
visit my gmc blog
click here to visit gmcws.org
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| Re: Replacing gasket under roof A/C [message #222482 is a reply to message #222478] |
Sun, 15 September 2013 00:33 |
roy1
Messages: 2126
Registered: July 2004
Location: Minden nevada
Karma: 6
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| armandminnie wrote on Sat, 14 September 2013 21:39 |
Thanks for the info everyone. I didn't get around to doing it yet and it is almost time to leave for Coos Bay - family visits in Calif on the way - so I'll have to do it when I get back. Current plan is to lift it onto some 2x4s and then slide it forward until I can stand it on the flat end. I am 99 percent sure that it is the gasket that is leaking - the pan is not real rusty and keeping the coach a tad off level keeps the leak from causing problems.
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Both of my Dutherm units have plastic pans they can't rust out.
Roy Keen
Minden,NV
76 X Glenbrook
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