At 08:22 PM 4/4/2005 -0500, Peter Mysko wrote:
>I find that with any pop rivet, the trick is to first get the broken off
>nail part out of the rivet before trying to drill out the rivet. The nail
>part (if it is still there and they almost always are) is hardened and does
>not drill well at all. It usually just causes your bit to dull and then
>results in added heat transferring to the fibreglass causing it to melt. The
>best way I found to remove the nail is by using a snap style automatic
>center punch. Blue Point makes a good one. Just snap it in the center of the
>rivet and it will usually knock the nail out of the backside of the
>rivet...sometimes completely and other times at least part ways allowing you
>to drill the head off the rivet at least. It's best if you can provide some
>sort of support to the backside of the fibreglass if possible...otherwise,
>be a bit gentle with it. I normally use a bit one size larger than the rivet
>and use it to drill the head off only...then I will use a 3/16" bit to
>finish drilling it out completely.
Good idea. I've used a nail and hammer to drive the pin out.
Also, Greg, I didn't address your comment: "There are already a
couple of cracks around some of the rivets."
I have some used vallances for my car. Several of the holes are cracked
or completely broken. I plan fixing them with some fiberglass cloth on
the back side and glassing a thin strip of metal to streighten the lip
where it gets attached to the body. I was thinking of maybe filling
in the existing holes with something like dynaglass, and marking where
the original holes were. Them moving over about 1 to 1 1/2" to find some
new fiberglass that isn't cracked.
Since my car was missing the valances, I don't know if they were glued
and pop rivited to the body. But I was thinking of at least putting a
bead of silicon calk along the seam at the door opening. I don't know
if this is necessary or if it would really do anything.
John
on
Schroeder"
John T. Blair WA4OHZ email: jblair1948@cox.net
Va. Beach, Va (eBay id: zebra48-1)
Phone: (757) 495-8229
48 TR1800 48 #4 Midget 65 Morgan 4/4 Series V (B1109)
75 Bricklin SV1 (#0887) 77 Spitfire 71 Saab Sonett III
65 Rambler Classic
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