Condensation on inside of xenons

Robti · 5th July 2020, 12:09

Lens is okay and rubber caps in place, so I have to assume it’s the seal Between lens and body, any help on how to and what to use to reseal?
Thanks

suzublu · 5th July 2020, 13:09

Just seal them with black mastic or something. Take the caps off the back to dry them out, then chuck a bag of silica inside

Robti · 5th July 2020, 13:26

Quote:

Originally Posted by suzublu

Just seal them with black mastic or something. Take the caps off the back to dry them out, then chuck a bag of silica inside

That sounds good, thought it would be a full strip down.
Thanks

RogerHeinz57 · 7th July 2020, 22:45

It is also worth understanding that when refurbishing these lamps, they often move the lenses slightly due to the applied pressures and slight movements may possibly allow the seal to be slightly compromised.
The only way to sort this is to strip the lens off the body, leave the sealant well alone, but add some small bead alongside the pre-existing sealant at the critical point of the lens to seal bed to re-enforce what is there.
The silica gel gear also sounds a good plan !

SCP440 · 8th July 2020, 06:53

Removing the lens is easy enough, just place the complete unit in the oven at about 120c for 15 to 20 mins. Once removed the lens just needs a bit of encouragement and it will come off. You can buy the correct butyl sealer in strips, push a strip of this in the groove where the lens goes and heat it again in the oven for another 20 mins and push it together.

Probably best to do this while the wife is out or make an oven out of a box and a paint stripper heat gun.

You wont melt the headlight unless there is direct heat contact.

Robti · 8th July 2020, 08:14

Okay so full strip down think I will wait till we have a few days of good weather forecast
Thanks

5th July 2020, 12:09	#1
Robti Posted a thing or two MG ZT-T 190+,Rover 800 vitesse coupe Join Date: Aug 2014 Location: Hamilton Posts: 1,968 Thanks: 616 Thanked 228 Times in 210 Posts	Condensation on inside of xenons Lens is okay and rubber caps in place, so I have to assume it’s the seal Between lens and body, any help on how to and what to use to reseal? Thanks __________________ Robert

5th July 2020, 13:09	#2
suzublu This is my second home rover 75 1.8 vvc club se wedgwood blue Join Date: Aug 2009 Location: Seaton Carew Posts: 26,912 Thanks: 65 Thanked 7,142 Times in 4,642 Posts	Just seal them with black mastic or something. Take the caps off the back to dry them out, then chuck a bag of silica inside Last edited by suzublu; 5th July 2020 at 13:12..

8th July 2020, 08:14	#6
Robti Posted a thing or two MG ZT-T 190+,Rover 800 vitesse coupe Join Date: Aug 2014 Location: Hamilton Posts: 1,968 Thanks: 616 Thanked 228 Times in 210 Posts	Okay so full strip down think I will wait till we have a few days of good weather forecast Thanks __________________ Robert

7th July 2020, 22:45	#4
RogerHeinz57 I really should get out more....... A Reasonably Priced Car Join Date: Jan 2014 Location: Burton Latimer Posts: 2,530 Thanks: 408 Thanked 1,064 Times in 712 Posts	It is also worth understanding that when refurbishing these lamps, they often move the lenses slightly due to the applied pressures and slight movements may possibly allow the seal to be slightly compromised. The only way to sort this is to strip the lens off the body, leave the sealant well alone, but add some small bead alongside the pre-existing sealant at the critical point of the lens to seal bed to re-enforce what is there. The silica gel gear also sounds a good plan !

8th July 2020, 06:53	#5
SCP440 I really should get out more....... MG ZT-T 260 Join Date: Feb 2016 Location: Witney Posts: 2,504 Thanks: 6 Thanked 910 Times in 571 Posts	Removing the lens is easy enough, just place the complete unit in the oven at about 120c for 15 to 20 mins. Once removed the lens just needs a bit of encouragement and it will come off. You can buy the correct butyl sealer in strips, push a strip of this in the groove where the lens goes and heat it again in the oven for another 20 mins and push it together. Probably best to do this while the wife is out or make an oven out of a box and a paint stripper heat gun. You wont melt the headlight unless there is direct heat contact.