where do you want me to put m-seal ??

i didn't get it !!
do you want me to fill silicon get all the way till the brim ??

but i dont see any other nut
can you pls tell me where it is located in the foll. pic?
btw i rode quite a bit today without the HID and checked the ballast...not hot at all...so i dont think its taking the engines heat.

not this nut as it will have the heat problem there is one more more on the upper side...

So, thats the culprit. U need to close it any way to prevent dust going in. Try Mseal for a permanent or go for RTV sealant which I feel the best as it can be removed easily at any point of time. One big cyl will cost u less than 200/. Dont go for the small tube.

Guys the foll. pic shows where i have mounted my Ballast...as you can see its pretty close to the engine...do you think the engine's heat will affect the ballast?

@kinshuk
mate...is this the place you were referring to?

thank you

Guys, I own bajaj XCD 135cc. Its just around 16 months old and I am looking forward to get a HID installed on it to improve my vision during night rides. Currently I am not so happy with its headlight luminosity. BTW the XCD blog says it has DC Lighting ! ..... How will it affect my plans to install a HID ??? Can you also suggest which HID should I go for?? ..... I tour a lot ~!

sajjt that RTV sealent is one which is semi transparent type ? is it heat resistant ?

as you already have seen the back of my dome is completely open
i cannot attach the rubber diaper kind of thing over it, the gap is pretty big.





however as its 1 piece including the glass, so its pretty much towards the front, and the dome shield is covering it completely, it has already survived terrible mumbai rains for 2 months, so water seepage is NIL.

but dust does accumulate easily, but still it doesn't enter the reflective surface as well as the glass in the front.
as I've closed the upper vents of the projector, so even that problem is pretty much sorted.

can you suggest me any other solution where i can enclose the open back part of the headlight assembly to oem level ??

Thanks for taking my word

U r right, keep the vents closed from the front and let some gap behind to give more air circulation. I think this is already done in all OE Hls. If u try to open a projector from a HL assy u can see this. Heat vents are provided at the back. I still remember once I had a chance to open a Laura projector. Its a full unit with ballast and everything is bolted to the lens assy as a whole and this unit again bolted to the HL assy. Once u pull it out u can see the gaps just below the lens. The front portion of the HL assy is acting as a shroud and if u closely observe from the front glass, there r air gaps more than 2mm between the HL assy and the lens.

But in that case also there should not be any dust accumulation in the glass or lens as its fully sealed and the heat vents are provided just behind the HL assy by using L shaped rubber tubes. So there's only a little chance to get the dust inside.

Nano, check for the front and back side of ur HL assy for any dust entry. In Pulsar HL assy is fully sealed once u close the glass and the bulb is installed with the black rubber cover is fixed. Check for the cover seatings onto the bulb base also check for the L shaped heat vent tubes are there or not. Its meant for protecting the dome from direct water splashes but at the same time its not letting the dust too.