Can you take apart the headlight case?
#1
Instructor
Thread Starter
Can you take apart the headlight case?
Have really bad crazing on the inside of my headlights and can't seem to find a good replacement. Can these headlight cases be disassembled to recondition the inside lens, or does anyone know where I can get a quality replacement?
#2
I've dismantled headlights before, but not Rlegendo ones.
Basically, you need a hot-air gun and some pries, or a lot of screwdrivers, or something. And plenty of patience.
Carefully go round it to soften the mastic and then gradually pry apart. Bearably painful on the fingers is about the correct temperature, so as not to distort things. Reassembly is largely the reverse, progressively squishing them back together.
Some people put the lamps in the oven, but that's scarily hit n' miss as they're often not very accurate at low temperatures.
Basically, you need a hot-air gun and some pries, or a lot of screwdrivers, or something. And plenty of patience.
Carefully go round it to soften the mastic and then gradually pry apart. Bearably painful on the fingers is about the correct temperature, so as not to distort things. Reassembly is largely the reverse, progressively squishing them back together.
Some people put the lamps in the oven, but that's scarily hit n' miss as they're often not very accurate at low temperatures.
#3
Racer
The oven method mentioned by @Blues Legend can be found at
. I would think that reassembly is critcal with respect to sealing the unit. In that regard perhaps a high quality clear and waterproof silicone caulk.
#4
Instructor
Thread Starter
The oven method mentioned by @Blues Legend can be found at Headlamp disassembly. I would think that reassembly is critcal with respect to sealing the unit. In that regard perhaps a high quality clear and waterproof silicone caulk.
#5
Senior Moderator
You want consistent heat all around , heat gun wont get it hot enough, itll take MUCH longer. Also use butyl rubber, not silicone when you reinstall
#6
Racer
#7
Senior Moderator
https://www.theretrofitsource.com/oc...560?quantity=1 as an example.
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#9
Racer
Not necessarily true for 100% silicone products. I used to work for GE and specifically use the Advanced Silicone 2 Window & Door Sealant for outdoor projects. The shrinkage is essentially “zero” as defined by ASTM testing codes. I do believe it would be more difficult to work with as opposed to the butyl rubber being suggested but would provide superior adhesion. Whether that capability is needed or not is a different matter. But one could say that since the original sealing method failed, perhaps something better is worth consideration.
#10
Interesting to know. Probably less messy.
Lights are normally ventilated to prevent misting - it's just a matter of keeping the rain out at 90 MPH...
The crazing is likely due to sun damage - mine get cataracts on the outside only, as we aren't allowed intense sunlight.
Lights are normally ventilated to prevent misting - it's just a matter of keeping the rain out at 90 MPH...
The crazing is likely due to sun damage - mine get cataracts on the outside only, as we aren't allowed intense sunlight.
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