Hey everyone. I wanted to know if anyone has any info or knowledge about this! [Sorry if this is in the wrong section, btw]

So this is pretty cool to me. I have a 1989 240SX SE hatchback. Apparently, it’s #2 of 89 total 240s that were made with a factory-style power sunroof by ASC - at least, that’s what the previous owner told me. It all checks out from what I can tell. Look at these pictures.

https://ibb.co/Wvym6MH
https://ibb.co/jRj1gBj
https://ibb.co/2N6WRHB
https://ibb.co/HTVC1fk
https://ibb.co/XXwLLfk

I tried looking up more info about ASC and their work with 240s, but I can only find info about the convertibles they worked on. I don’t see anything about the hatchbacks with power sunroofs.

If anyone at all has ever seen or worked with these sunroofs, I have 2 questions:

1. Can the weatherstrip be fabricated at all? Does a universal weatherstrip work with it? Because the OEM manual sunroof weatherstrip does NOT fit the ASC power sunroof. They are different sizes.

2. I am missing the ASC button to control the sunroof. It’s supposed to go in between the sun visors (the little square hole next to a tiny circle hole in the picture I uploaded). Does anyone know where to find an original ASC button? If not, it’s not a big deal. My main concern is the weatherstrip because it currently leaks. In the meantime, there is hardened liquid gasket sealing the sunroof from the exterior.

Any other information would be greatly appreciated. LMK what you all think

KoveKim wrote: ↑

Thu Mar 30, 2023 4:54 pm

My main concern is the weatherstrip because it currently leaks. In the meantime, there is hardened liquid gasket sealing the sunroof from the exterior.

Sunroof gaskets all leak, they're for stopping air and not water. Water is supposed to drain into channels surrounding the roof, and egress either through rubber drain tubes leading to the cowl or fenders (internal-opening roofs) or to the outside corners of the roof (external-opening roofs like the glass-roof Maximas and Muranos). They "leak" when the drains stop up and the channels overflow onto the headliner. On aftermarket units the tubes often double back after exiting the A-pillar and empty into the rockers rather than the cowl, which makes many of them prone to kinks in the hoses. Your best bet is to search out the bases of the hoses and clear them bottom-up, since most of them have the headliner glued to the sunroof frame and even dropping the corners of the headliner can make a mess. You really don't want to risk compressed air blowing a tube off at the top before the clog lets go at the bottom.

VStar650CL wrote: ↑

Thu Mar 30, 2023 6:27 pm

Sunroof gaskets all leak, they're for stopping air and not water. Water is supposed to drain into channels surrounding the roof, and egress either through rubber drain tubes leading to the cowl or fenders (internal-opening roofs) or to the outside corners of the roof (external-opening roofs like the glass-roof Maximas and Muranos). They "leak" when the drains stop up and the channels overflow onto the headliner. On aftermarket units the tubes often double back after exiting the A-pillar and empty into the rockers rather than the cowl, which makes many of them prone to kinks in the hoses. Your best bet is to search out the bases of the hoses and clear them bottom-up, since most of them have the headliner glued to the sunroof frame and even dropping the corners of the headliner can make a mess. You really don't want to risk compressed air blowing a tube off at the top before the clog lets go at the bottom.

This is fantastic info, thank you so much. I’ll look into that when I get a chance.