When I got my '87 GN from transport, the pass. back floor was full of water. Previous owner suggests sealing the small rear window with some
black stuff? Where do I get said goo and how to apply it? Also, the windows don't seal very well, even though the rubber around the windows looks new?? what to do??
Thanks for the help guys - stevet
Unless those windows have been removed at some point, I doubt they are leaking. You have to take out the interior panel to get to the window if you think that's the problem. I have removed several and I don't think an original installation will be leaking.
I'm not sure where the water comes from, but it seems pretty common for cars that have been outside for a while. If the windows don't seal well, that could be the cause. Kirban has a book on adjusting the windows to get them to seal tight.
If the heater core has been replaced and the cover not sealed well againest the firewall when put back together, water will come in from under the dash, usually on the PS. You can sometimes see it running down the carpet when water is run down the windshield. Not sure if it could make it's way to the back seat from there.
Steve, you did not mention if you had t-tops or a sunroof (both a major source of leaks).
My GN had three quarter sized rust holes on the drivers side floor pan right below the brake and gas pedals.
Fixing the holes was no problem (with some POR-15 and some fiberglass), but finding the cuase of the leak was a major task that took me months to do (with kids and all).
Anyway, if you are serious about finding the leak and fixing any damage, it is going to be a bit of a PITA.
I would start by removing the carpet to find if there is any rust. You will have to remove all the seats and the center console. Prolly only a 20-30 minute job. The main areas of concern are the low spots in the back floor pans where the drain plugs are. I would assume that since you had that big puddle that your passenger side drain plug would be rusted out pretty bad.
If you do have rust anywhere let me know and I will give you some tips on fixing it.
Now to answer your questions: (finally). Now that you have the carpet out, see if you can take out the plastic kick panels on the drivers and passenger side. Also try to remove the plastic pieces that hold the armrest and that suround the rear side windows. Also remove your headlinter and the plastic pieces that cover your A pillars.
While sitting in the car with the windows up, have a buddy or your wife spray a hose all around your car. If you don't have a wife or buddy, the local automatic car wash will work great. (you will have to put the drivers seat back in). Use a flash light to look all around the inside of the car to see where your leaks are coming from.
My car leaked from the windshield, sunroof, both door windows, firewall (by the steering column), and lastly from some really bizzare place next to the fuse box kinda where the door hinges are.
Good luck!
BTW, regarding your windows not sealing well, mine had the same problem.
Remove the door panel (upper and lower). There are two bolts in the middle of the door that connect to the center of the scissor mechanism that move the window up and down. Try moving these up and down until you get the window to line up correctly. It will take you a few trys to get it right. Sometimes it will be to far forward, sometimes it will be to far back, etc.
Also, on the top of the door are the bolts for the felt pads that help the window stay pressed outward. Try moving those out.
You guys are very helpful - I am going to take the
door panels off and pull the carpet next weekend,
so I'll check then, might buy that manual from
Kirban.
Thanks - stevet