Back Lighting Question

[Classic Finn]

I have round LED Lighting on the back of my tear here in Finland.

Ive seen equivalent round lighting for sale there in the Good Ol USA, however these lights have rubber gaskets or seal (correct name?)
for mounting them.. here mine dont have..

Would anyone know what size they are? I am having a tough time sealing mine up against leaks since mine dont have the gaskets available. Only a plastic chrome like ring and nothin else.



The lights are 95mm in diameter. The reason they dont seal is that the curve is there and its quite steep.

Classic Finn

[rbeemer]

Heikki,

you could cut you own gasket from engine gasket material, or your other option might be a thin bead of silicone that you put on the back of the light just prior to mounting

[looped]

i have been thinking of this too as my lights and plate will both be mounted on a radius, with some brainstorming on this i thought to grab the profile using a block of wood and a pencil and get jiggy with the router to make a shaped back flat front mounting surface.

[Ken A Hood]

When I bought my 4" LED's they came with matching grommets, like these one's. There standard replacements for Truck-lite, Peterson, Maxxima and Grote grommets.

[Steve_Cox]

Heikki,

A gasket of closed cell neoprene foam would seal nicely.

[texasdog]

I had to drill a 4.5" hole to mount those rubber grommets, using a bi-metal hole saw. I also have 4" LEDs which go into the grommets. If I could post a picture, I would show you my bumper with them installed (:

[DezPrado]

I had a similar problem Heikki & solved it thus:
Where you have chosen to mount your lights, place a layer of Saran wrap (or equivalent) onto the body of the teardrop securely;
apply a generous bead of sealant ( I used RTV black silicone) around the back edge of your light fitting and mount it onto the body of the teardrop;
run your finger or a spatula around the light edge to remove the surplus sealant and to radius the seal;
Allow it to set/dry undisturbed;
the following day remove the light and the saran wrap & voila! custom curved gasket & no leaks.

Hope you get the idea & I'm sorry I can't post a pic

[looped]

I had a similar problem Heikki & solved it thus:
Where you have chosen to mount your lights, place a layer of Saran wrap (or equivalent) onto the body of the teardrop securely;
apply a generous bead of sealant ( I used RTV black silicone) around the back edge of your light fitting and mount it onto the body of the teardrop;
run your finger or a spatula around the light edge to remove the surplus sealant and to radius the seal;
Allow it to set/dry undisturbed;
the following day remove the light and the saran wrap & voila! custom curved gasket & no leaks.

Hope you get the idea & I'm sorry I can't post a pic

thank you for this post, i think you saved me a bunch of work in making a wooden version..

I wonder this though since mine will be painted could this also be done with a epoxy woodfiller or semi rubberous plastic using wax paper instead of saran wrap? im thinking something hard that wont crumble yet will also take paint well..

thank you

[Classic Finn]

I have 0 space in center, and about 1/4 if I know how to use the inches system.. on top and bottom

Each of your ideas are great thank you ever so much for the replies.

I,ll try these methods and I,ll let you know what happens.

The silicon seal or gasket making on wax paper is also a great one.

Thank You All once again..

CLassic Finn

[Classic Finn]

I had a similar problem Heikki & solved it thus:
Where you have chosen to mount your lights, place a layer of Saran wrap (or equivalent) onto the body of the teardrop securely;
apply a generous bead of sealant ( I used RTV black silicone) around the back edge of your light fitting and mount it onto the body of the teardrop;
run your finger or a spatula around the light edge to remove the surplus sealant and to radius the seal;
Allow it to set/dry undisturbed;
the following day remove the light and the saran wrap & voila! custom curved gasket & no leaks.

Hope you get the idea & I'm sorry I can't post a pic

Im going to give it a try in the morning .. thank you very much indeed.
NZ must be New Zealand, a Land Ive always wanted to move to.

Thanks again.

Heikki

[DezPrado]

Looped "I wonder this though since mine will be painted could this also be done with a epoxy woodfiller or semi rubberous plastic using wax paper instead of saran wrap? im thinking something hard that wont crumble yet will also take paint well.. "

I did consider the wax paper but someone else in my household had a greater need at the time & being the gentleman that I am, let her use it for the cookies she was making for me.......
The epoxy would probably work ok as you suggest. It might be a bit more work than just squeezing a product out of a cartridge/tube. I was relatively impatient & wanted something that was quick & had time for me to work with before it cured & went off. I have not had too much success with epoxies to date so I can't validate an opinion yet[/list]