| Re: [GMCnet] sealing chipmunk air leaks [message #321855] |
Wed, 09 August 2017 12:17  |
James Hupy
Messages: 6806
Registered: May 2010
Karma:
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Senior Member |
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Chipmunk cheeks are caused by the downward pressure from the top of the
coach, combined with the delamination of the beltline. It becomes most
evident when looking straight down the side of the coach from front to
rear. How do you fix it? Best way is to remove the beltline covering,
uncover the interior, remove the front seats and re-inforce the ribs behind
the beltline. Then place lateral pressure against the beltline from the
exterior of the coach until it flattens against the ribs, then use
adhesives and mechanical fasteners to the reinforcements. Allow sufficient
cure time for the adhesives, then remove the mechanical pressure against
the exterior of the coach.
Easy way? Fill the gaps with expanding foam, and don't worry about the
pooch in cheeks.
Jim Hupy
On Aug 9, 2017 9:55 AM, "Bill Shourt" wrote:
Getting ready to seal air leaks into front cabin above front wheels and
sides of firewall. I have some latex based insulating foam sealant that is
minimally expanding made by DAP. In reading some old posts some have used
expanding urethane foam insulation. What have others used and recommend.
I always thought that I would de-chipmunkize the sides first before
resealing but I think that was a pipe dream and now I just need to get er
done.
--
Bill and Michele Shourt
78 Kingsley, origional
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