| Any tips for installing countersunk rivets? [message #160565] |
Thu, 16 February 2012 18:33  |
Dennis S
Messages: 3046
Registered: November 2005
Karma: 2
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Senior Member |
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I'm preparing for the install of the Fantastic Fan, but the OEM vent is 17 inches square and the FF is 16 1/2. Some of the old screw holes will definitely be outside the new fan base. This is the same problem Patrick recorded some time ago.
http://www.gmcmhphotos.com/photos/showphoto.php?photo=4595&cat=3461
So I am preparing to install countersunk closed end rivets in the old screw holes. I have some ideas on the best way forward but would appreciate any tips. My big concern is not countersinking too deeply.
Thanks,
Dennis
Dennis S
73 Painted Desert 230
Memphis TN Metro
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| Re: [GMCnet] Any tips for installing countersunk rivets? [message #160569 is a reply to message #160565] |
Thu, 16 February 2012 18:49  |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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Dennis, what I do is put the countersink in a cordless variable speed
drill. Cut a little, and trial fit the rivet. If they wind up a skosh low,
that is probably OK. Better than too high. The roof material is quite thick
compared to SOB RV's. Be sure to use a sealer on the rivets before you
install them. The blind countersunk rivets that I have used take a heck of
a lot of force to crimp tightly. I have a pneumatic rivet gun that takes
all the effort out of the job. JWID
Jim Hupy
Salem, OR
78 GMC Royale 403
On Thu, Feb 16, 2012 at 4:33 PM, Dennis Sexton <dennisfsexton@aol.com>wrote:
>
>
> I'm preparing for the install of the Fantastic Fan, but the OEM vent is 17
> inches square and the FF is 16 1/2. Some of the old screw holes will
> definitely be outside the new fan base. This is the same problem Patrick
> recorded some time ago.
>
> http://www.gmcmhphotos.com/photos/showphoto.php?photo=4595&cat=3461
>
> So I am preparing to install countersunk closed end rivets in the old
> screw holes. I have some ideas on the best way forward but would appreciate
> any tips. My big concern is not countersinking too deeply.
>
> Thanks,
> Dennis
> --
> Dennis S
> 73 Painted Desert 230
> Germantown, TN
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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| Re: Any tips for installing countersunk rivets? [message #160594 is a reply to message #160565] |
Thu, 16 February 2012 21:46 |
GeorgeRud
Messages: 1380
Registered: February 2007
Location: Chicago, IL
Karma: 0
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Senior Member |
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I would also imagine that regular closed end rivets would work as well. The flange on the Fantastic fan could be mounted on some butyl tape, and as it's tightened down, would probably seal any irregularities.
George Rudawsky
Chicago, IL
75 Palm Beach
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