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The surreal camera angles make it a little tough to assess, but everything can be fixed. Not sure that you even need access from the rear, but if you do, remove the door panel and raise the window all the way.
The real issue will be repairing the fiberglass. It'll take a little effort but isn't that big of a deal.
fix the glass from the outside, requires cutting away that mess, use hollow door anchors to reinstall the mirror
Will the glass be strong enough if fixed from the outside only? I was under the impression that it would crack again sooner or later if I couldn't build it up outside of the radius of the repair on the bottom.
Cut the broken area out.
Make a couple of glass pieces similar to bonding strips a bit longer than the hole.
Use a sheet metal screw thru the strip in the center to hold it while you slip it in from the outside and bond it. Second piece beside the first piece, same way.
when cures grind and finish glassing from the outside.
You can use well nuts or even glass in some metal on the inside strips before installing them.
Cut the broken area out.
Make a couple of glass pieces similar to bonding strips a bit longer than the hole.
Use a sheet metal screw thru the strip in the center to hold it while you slip it in from the outside and bond it. Second piece beside the first piece, same way.
when cures grind and finish glassing from the outside.
You can use well nuts or even glass in some metal on the inside strips before installing them.
Cut the broken area out.
Make a couple of glass pieces similar to bonding strips a bit longer than the hole.
Use a sheet metal screw thru the strip in the center to hold it while you slip it in from the outside and bond it. Second piece beside the first piece, same way.
when cures grind and finish glassing from the outside.
You can use well nuts or even glass in some metal on the inside strips before installing them.
Noonie, thanks.
I like your idea. I will be going this route, I can add the well nuts while at it.
I'm not doubting everything is fixable. I've seen som pretty impressive repairs on this forum. The was in regards to giving up my project. I'm looking forward to this.
Did this exact repair on my '71. You may be able to salvage what you have, in my case the metal bracket was trashed and the mirror wouldn't hold so we used a part from a donor door.
The piece was cut from the donor and bonded onto the door with bonding adhesive. The edges were ground at an angle to maximize the contact area. It was also bonded to the metal bar behind the skin to make it strong. All in all a fairly easy repair. A skim coat of filler and it was ready for primer.
replacing the door skin is no big deal...in fact may be less work than laying glass, sanding, laying glass, sanding applying Duraglass and more sanding
Did this exact repair on my '71. You may be able to salvage what you have, in my case the metal bracket was trashed and the mirror wouldn't hold so we used a part from a donor door.
The piece was cut from the donor and bonded onto the door with bonding adhesive. The edges were ground at an angle to maximize the contact area. It was also bonded to the metal bar behind the skin to make it strong. All in all a fairly easy repair. A skim coat of filler and it was ready for primer.
Zwede, That's what I was looking for. I was sure someone else had to have done this. Did you extend a backer further along the broken part from behind with body adhesive or just taper and glass it?
I think I am going to put a backer in behind it to keep it from being weak.
If you're reusing your old piece you should have some kind of backing. Since we had a donor piece we cut it larger and tapered the edges so we didn't need backing. Be sure to bond it to the metal behind the skin also, that's what gives the skin its strength and prevents the mirror from vibrating.