Lotus Elan

Number plate light holes

PostPost by: Bud5000 » Sun Sep 03, 2023 3:21 am

The two holes where the back of the number plate lights go measure 32mm. Is that about the standard size for an early plus 2 or have these ones been made bigger?
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PostPost by: alan.barker » Sun Sep 03, 2023 1:07 pm

I think you only need holes for wiring grommets. You need to seal them too to stop water draining into the Boot.
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PostPost by: jono » Sun Sep 03, 2023 6:00 pm

Those have been made bigger but I don't think it matters.

I used 10mm thick self adhesive closed cell foam strip around the recess to control water ingress - it gets compressed to form a seal when the bumper is fitted.
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PostPost by: Bud5000 » Sun Sep 03, 2023 10:27 pm

Thanks team, I like the idea of the compressible foam. May use that and the addition of wiring grommets to hopefully give it a super seal.
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PostPost by: draenog » Mon Sep 04, 2023 1:43 am

In case it's of interest, this is what I found when I removed the rear bumper on my 1970 +2S. From what I could see, there was the remains of the original factory sealant which had been covered over by a later paint job (the car has only been repainted once). There was a thick circle of sealant around each number plate hole, and a line of sealant around the rim of the "dip". There is also a plug between the number plate holes (which can be seen on your car).

bumper-removed.jpg and
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PostPost by: Bud5000 » Mon Sep 04, 2023 7:48 am

Sealant seemed to be the answer for everything and directly from the workshop manual. No matter.
The "plug" on mine is in fact a bolt head where the support for the boot lock is, I believe.
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