Soft top front bow ('69 2000)

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Bwana
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Soft top front bow ('69 2000)

Post by Bwana » Wed Feb 07, 2018 5:43 pm

I'm talking about the interior trim piece(s) that mounts to the back of the windshield frame, up at the top. It is held in place apparently by the soft top clip points. Dean sells a vacuum formed one piece replacement and calls it a soft top front bow.

So my question is, is this piece originally one or two pieces? Mine came off in two pieces but it looks like it is torn apart in the middle, right underneath the center soft top hold down piece. I'm thinking about having it re-done to original condition but the guy at the shop that might do it swears it's two pieces. So, is it one or two?
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tjp
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Re: Soft top front bow ('69 2000)

Post by tjp » Wed Feb 07, 2018 5:54 pm

One piece.
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pebbles
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Re: Soft top front bow ('69 2000)

Post by pebbles » Wed Feb 07, 2018 8:12 pm

Pretty sure the foam is glued to the car, then the vinyl is stretched and glued to the foam. The edges of the vinyl are glued to the pinch welds. The W/shield gasket holds in the fwd edges.The aft edges are held in with the seal strips.
Another option would be to have the top header one piece, then each pillar be one piece. Small fold in the upper w/s corners to tie it in.
that my plan anyways.
David




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Bwana
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Re: Soft top front bow ('69 2000)

Post by Bwana » Thu Feb 08, 2018 9:42 am

pebbles wrote:
Wed Feb 07, 2018 8:12 pm
Pretty sure the foam is glued to the car, then the vinyl is stretched and glued to the foam. The edges of the vinyl are glued to the pinch welds. The W/shield gasket holds in the fwd edges.The aft edges are held in with the seal strips.
So it sounds like what you're saying is the piece is actually assembled to the windshield frame and not a separate piece?
1969 2000
1972 BMW 3.0 CSi Coupe
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pebbles
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Re: Soft top front bow ('69 2000)

Post by pebbles » Thu Feb 08, 2018 3:00 pm

Im guessing it was originally prefabbed, to facilitate the assembly line, then glued to the frame as one piece.
David




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Re: Soft top front bow ('69 2000)

Post by fj20spl311 » Thu Feb 08, 2018 4:01 pm

dean sells a 3 piece kit also. IIRC, it was 1 piece originally.
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Re: Soft top front bow ('69 2000)

Post by orangedawg » Mon Feb 12, 2018 4:51 pm

A question: From the factory, was the material covering the top bow a) foam with vinyl stretched over it, or b) a hard plastic (kind of like the dash) on late model roadsters? Just curious as I will have to have this done once I find a front top bow for my 1970.

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Re: Soft top front bow ('69 2000)

Post by Bigtaku » Thu Jul 12, 2018 7:25 am

On my last running roadster, I used Deans black foam piece glued to my windshield top. It worked fine but was ugly. I like the idea of all the weatherstrip on the soft or hard top. I just started my top resto so not much help.
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spl310
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Re: Soft top front bow ('69 2000)

Post by spl310 » Fri Jul 13, 2018 10:03 am

Dann at Rallye had a writeup about this years ago. I am going from memory, so I may not have it all straight. IIRC, the 68-69 cars had the plastic covered foam trims - made like the dash. The 70 got a soft vinyl covered foam rubber.
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Re: Soft top front bow ('69 2000)

Post by GeoffM » Fri Jul 13, 2018 1:00 pm

My 69 had the foam covered vinyl just like the dash.
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Re: Soft top front bow ('69 2000)

Post by greydog » Fri Jul 13, 2018 6:15 pm

Our '69 had a molded sort of firm foam with a vinyl skin applied just like the dash cover.
It's not like the foam was sculpted and then vinyl was glued to it, its more like it was all done in some sort of mold with the thin vinyl layed in and the foam (like a urethane foam) injected into the mold so it came out as once pc.
then it was glued to the windshield frame. Of course, they likely had a jig to support, position and hold the part while the glue dried.
Ours was badly warped and chewed up. It came off in half a dozen pcs.
I used Dean's 3 pc molded plastic replacement and, while it took a little fiddling to get to fit well, I'm happy with the result.
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Re: Soft top front bow ('69 2000)

Post by ppeters914 » Fri Jul 13, 2018 6:27 pm

Is it different on the low windshield?
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Re: Soft top front bow ('69 2000)

Post by pebbles » Fri Jul 13, 2018 7:29 pm

ppeters914 wrote:
Fri Jul 13, 2018 6:27 pm
Is it different on the low windshield?
Low windshield doesnt have one.
greydog wrote:
Fri Jul 13, 2018 6:15 pm


Our '69 had a molded sort of firm foam with a vinyl skin applied just like the dash cover.
It's not like the foam was sculpted and then vinyl was glued to it, its more like it was all done in some sort of mold with the thin vinyl layed in and the foam (like a urethane foam) injected into the mold so it came out as once pc.
then it was glued to the windshield frame. Of course, they likely had a jig to support, position and hold the part while the glue dried.
Ours was badly warped and chewed up. It came off in half a dozen pcs.
I used Dean's 3 pc molded plastic replacement and, while it took a little fiddling to get to fit well, I'm happy with the result.
Dan
They probably left the vinyl long and trimmed it on the car, after the glue dried.
David




"When we were standing next to the motor while on the dyno, and the motor hit VVL, eyes went watery.."

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Re: Soft top front bow ('69 2000)

Post by mraitch » Fri Jul 13, 2018 10:52 pm

the weatherstripping (foam) is supposed to be glued to the curved retaining piece that helps retain the soft top cover.
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Re: Soft top front bow ('69 2000)

Post by greydog » Fri Jul 13, 2018 11:28 pm

I think you sort of right David. The thin vinyl was wrapped around the backside of the molding so it was held in place when glued to the frame.
Dan
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