Headlamp Sugar Scoop captive nuts on wrong side ?!

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rfs1957
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#1 Headlamp Sugar Scoop captive nuts on wrong side ?!

Post by rfs1957 » Fri Aug 11, 2023 5:04 pm

I'm increasingly concerned that I'm going to publish questions that I posted 10 or 15 years ago :oops:

Is there an emoticon for Confused Alzheimer ?

I had completely forgotten that my headlamp scoops have the centre, lower, mounting point with the captive nut on the BACK side of the flange.

So they are fitted with the nut functioning essentially as a spacer :questionmarks:

The upper pair are to the front, the centre one to the back.

Left scoop, Right scoop, the same.

Is there a reason for this, has anyone else seen that, and Is This A Question I Have Already asked ?!


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Rory
3.8 OTS S1 Opalescent Silver Grey - built May 28th 1962

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abowie
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#2 Re: Headlamp Sugar Scoop captive nuts on wrong side ?!

Post by abowie » Fri Aug 11, 2023 9:15 pm

rfs1957 wrote:
Fri Aug 11, 2023 5:04 pm
Is there a reason for this, has anyone else seen that
I'm pretty sure that's factory.
Andrew.
881824, 1E21538. 889457. 1961 4.3l Mk2. 1975 XJS. 1962 MGB. 1979 MGB.
http://www.projectetype.com/index.php/the-blog.html
Adelaide, Australia

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Jeremy
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#3 Re: Headlamp Sugar Scoop captive nuts on wrong side ?!

Post by Jeremy » Sat Aug 12, 2023 8:53 am

Rory, I seem to remember reading that it's done this way to position the scoop at a gradient, like a gutter, and in the eventuality of any water finding its way into the headlamp space it can drain away rearwards. Maybe I invented that. But it seems plausible that early cars might have accumulated little puddles of dirty water along the bottom of the scoops, and they decided that repositioning the captive nuts was a lot easier than redesigning the whole pressing.
(It doesn't work BTW...my car had dirty teardrops until I redoubled my attempts to make it all watertight, front and rear)
Jeremy
1967 S1 4.2 FHC

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#4 Re: Headlamp Sugar Scoop captive nuts on wrong side ?!

Post by Heuer » Sat Aug 12, 2023 10:33 am

Everything you need to know about sugar scoops (correct name 'Finishing Panel Assembly in Headlamp Recess'): viewtopic.php?p=35444#p35444
David Jones
S1 OTS OSB
1997 Porsche 911 Guards Red
2024 Lexus LBX

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#5 Re: Headlamp Sugar Scoop captive nuts on wrong side ?!

Post by mxke » Sat Aug 12, 2023 6:21 pm

I am also at this point in the reassembly of my bonnet.
One question - the 3/4" length screw would go into the center nut, correct?
Then one "shims" the scoop under the three screws as required to get the scoop to fit the bonnet as close as one can?
When I took my car apart, the PO (AKA the "Butcher") had used nuts on the screws as spacers. Probably the easiest way to shim the scoop?
Thanks,
Mike
Mike - 1962 OTS 878380, 1965 Honda S600, 2001 Honda S2000

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#6 Re: Headlamp Sugar Scoop captive nuts on wrong side ?!

Post by rfs1957 » Sun Aug 13, 2023 6:42 am

Many thanks to all, especially to David for the Biblical Reference Work.

Will see if I can add anything once I've successfully fitted these.

Jeremy, how did you go about excluding the water?

As it stands, it appears to be the case that anything that gets into the chrome bead area will end up being deposited right above the scoop, and drop right into it.
Rory
3.8 OTS S1 Opalescent Silver Grey - built May 28th 1962

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#7 Re: Headlamp Sugar Scoop captive nuts on wrong side ?!

Post by Heuer » Sun Aug 13, 2023 10:43 am

Best way to seal the headlamps is to do what Jaguar did in period, liberal use of Dum Dum putty. However a few people here have tried to use it with limited success (search on Dum Dum). I don't think Dum Dum is still produced but Eastwood Flexible Strip Caulk is a good alternative and having strips makes application a lot easier. https://www.frost.co.uk/eastwood-flexib ... placement/

Personally I take off the covers and wipe the scoops
David Jones
S1 OTS OSB
1997 Porsche 911 Guards Red
2024 Lexus LBX

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#8 Re: Headlamp Sugar Scoop captive nuts on wrong side ?!

Post by caveman » Sun Aug 13, 2023 11:45 am

Steve
1965 S1 4.2 FHC (early)
:wavegreatbritain:

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Jeremy
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#9 Re: Headlamp Sugar Scoop captive nuts on wrong side ?!

Post by Jeremy » Sun Aug 13, 2023 4:36 pm

rfs1957 wrote:
Sun Aug 13, 2023 6:42 am
Jeremy, how did you go about excluding the water?
I just went at it carefully from under the wing, pressing that black Eastwood caulk into every conceivable gap or hole that could possibly lead to the scoop space. I believe most of the water was being blasted in from behind by the wheels, and less from the top.
Jeremy
1967 S1 4.2 FHC

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#10 Re: Headlamp Sugar Scoop captive nuts on wrong side ?!

Post by Allrand » Mon Aug 14, 2023 7:20 am

I've found that Prestik works well in lieu of Dum Dum for plugging holes & joints. I caulked the front 2" of the beading joint, ie the section ahead of the bonnet diaphragm above the scoop area. I also sealed the glass seal around the glass and the seating lip on the bonnet.
Randall Botha
'64 3.8 fhc & '51 Mk 7 (now sold)

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