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> Rebuiding Inside-out
bkrantz
post Mar 17 2020, 08:33 PM
Post #361


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I guess PO decided not to have a radio antenna.


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bkrantz
post Mar 17 2020, 08:35 PM
Post #362


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Got the Dremel tool out and cut the brazing. The hole is whole again.


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bkrantz
post Mar 17 2020, 08:37 PM
Post #363


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And in keeping with PO repair quality, check the piece they brazed on the underside. Nice shape!


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bkrantz
post Mar 17 2020, 08:42 PM
Post #364


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One more job for the grinder: the left front fender. And if you are keeping score, this means the only panel not (yet) subject to repair or replacement is the left rear fender.

Anyway, I knew the front part of the fender had been repaired, with puller holes showing on the inside and some filler. Turns out quite a bit of filler.

The metal can be made lots better.


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bbrock
post Mar 17 2020, 09:29 PM
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Am I seeing right that the antenna hole is in the cowl? I've never seen one mounted there. Usually on driver's side fender or sometimes passenger side.
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bkrantz
post Mar 18 2020, 08:31 PM
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Thats my guess for the purpose of the hole. Now you reminded me to do more research for the standard location for 1973.

In any case, the metal is not really strong enough there.
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bkrantz
post Mar 18 2020, 08:37 PM
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Just a little time today to play 914, so I worked more on the right side of the cowl. I got the alignment pretty good, but the channel might need replacing.


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bkrantz
post Mar 19 2020, 08:17 PM
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Finished the festival of holes, with step 3: grinding. Here is the right side of the firewall.


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bkrantz
post Mar 19 2020, 08:17 PM
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And the left side.


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bkrantz
post Mar 19 2020, 08:18 PM
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And the dash under-panel.


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bkrantz
post Mar 19 2020, 08:20 PM
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I also refilled the antenna hole in the right cowl. Besides not being a stock location, the metal is not strong or stiff enough. Here is a patch cut to fit from genuine 914 sheet metal.


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bkrantz
post Mar 19 2020, 08:21 PM
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Welded in place.


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bkrantz
post Mar 19 2020, 08:22 PM
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And after a quick grinding.


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FourBlades
post Mar 20 2020, 07:40 AM
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Nice work as always! (IMG:style_emoticons/default/smile.gif)

You are really good at welding thin sheet metal.

Do you use copper backers or just have a really skillful trigger finger?

Do find the spark to be distorted when using strong magnets nearby?

John
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bkrantz
post Mar 20 2020, 09:02 PM
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Thanks. I have a copper spoon and use it whenever I can. I have also learned (the hard way) to weld one dot at a time.

I have not noticed any affect from the magnets.
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bkrantz
post Mar 21 2020, 08:08 PM
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I got to try my latest tool acquisition: a shrinking disk. This is a polished stainless steel disk with a raised edge. On the grinder, it spins against sheet metal and the friction creates local heat. A quick spray of water cools and shrinks the hot spot.


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bkrantz
post Mar 21 2020, 08:10 PM
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I did this for about 20 minutes on the left side of the cowl, where previous deformation and repair had stretched the metal and created a 4 inch spot that oil-canned up and down. The shrinking worked great and made the cowl section flatter and more rigid.


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bkrantz
post Mar 21 2020, 08:11 PM
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After the shrinking work, I decided to cut out a smaller area than planned.


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bkrantz
post Mar 21 2020, 08:12 PM
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And I had time to fit a cardboard template for the patch. Too bad metal does not work as fast.


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bkrantz
post Mar 22 2020, 08:11 PM
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Translating cardboard into recycled 914 sheet metal. Here is the piece cut out and marked.


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