water not draining from sunroof

[Markus2]

Under heavy rain-water builds up along perimeter of sunroof sliding space.
(i am trying to be descriptive and accurate, i know it all sounds funny)
the drain hole in the drivers side front corner does not drain-so water builds up and leaks into the fabric on inside of car. And the water just spreads like a a plague all over the fabric liner inside.
How do I fix the clog and get the darn drain hole draining again?

 

[Elessee]

don't hold me to any of this, but it may provide some hints.
The manual shows a drain tube leading down through the door pillar. The hose(s) ends slip onto a nipple up at the sunroof. There is a notation about an adhesive at that nipple. (a tiny little spring-type hose-clamp might work too)

Instructions for hose replacement are to first pull the headliner down to gain access to the upper end, and "cowl side trim panel" down at the rocker panel for the lower end.
A new hose would be attached to the bottom end of the old one, and pulled up through the door pillar and into position.
--------

i guess a hose / nipple could be clogged OR the hose end may be detached. Perhaps the water level gets high enough to leak past the edge of the window.. ?
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If the drain hole seems clear, and it's not coming in past the glass, I'd resign myself to do whatever necessary to get under the headliner and to look for the source of the leak, or find out what the problem is.. then fix it. A clogged nipple or hose could be blown clear with compressed air.


Possible sources for "Leaks around weatherstrip on body":
drain hose plugged
hoses plugged or restricted
headliner obstructing sealing of weatherstrip (Mustang)
sealer under weatherstrip not applied
weatherstrip not seated
kinks in upstanding flange

i guess they don't think a hose might become detached..

 

[ridindirrty]

A Thought

Before you start taking the interior apart (very unpleasant), locate the drain outlet and try blowing up & out any possible obstructions with compressed air. Try the easy fixes first Who knows how much crap has found it's way down that tube over the years.

 

[OldSchool1]

Cloggers.

Under heavy rain-water builds up along perimeter of sunroof sliding space.
(i am trying to be descriptive and accurate, i know it all sounds funny)
the drain hole in the drivers side front corner does not drain-so water builds up and leaks into the fabric on inside of car. And the water just spreads like a a plague all over the fabric liner inside.
How do I fix the clog and get the darn drain hole draining again?

Yo.

If the moonroof is factory*, the drain lines terminate INSIDE the body of the vehicle. Without removing the interior, only the front drains are accessable and only from the roof.

These can be snaked clear with 14 or 16 guage wire or blown/sucked clear with compressed air or a vacuum and a very small hose.

* - A factory moon roof does NOT have a frame attached to the roof of the vehicle.

Front
http://thelincolnmarkviiclub.org/Gallery/pinkin/Dscf2435
http://thelincolnmarkviiclub.org/Gallery/pinkin/Dscf2437

Rear
http://thelincolnmarkviiclub.org/Gallery/pinkin/Dscf2438
http://thelincolnmarkviiclub.org/Gallery/pinkin/Dscf2443

 

[Markus2]

update time

so..
i got some wire from hardware store.
and it seems the drain holes are fine.
Under hard rain though my interior roof liner becomes saturated with water-as in totally wet.
Water will actually poor onto my head from front corner-
I thought only the front area is where it was leaking-
I realize now the entire roof soaks up water-under HARD RAIN IF ITS SITTING.
So I noticed the dry cracking on the gasket around the moon roof glass-maybe that gasket should be replaced.
It seems that once in the closed position-the gasket looks like its a hair away from mating against the metal of the car to form that seal.
So i am wondering if the old gasket has shrunk and cracked over time to being non functional or my moonroof is not lining up correctly.

Im close to taping it and worrying about it when I can get the engine running smooth again- (engine issues are in my other post on here ref. to 24 lb injection)

 

[OldSchool1]

Under heavy rain-water builds up along perimeter of sunroof sliding space.
(i am trying to be descriptive and accurate, i know it all sounds funny)
the drain hole in the drivers side front corner does not drain-so water builds up and leaks into the fabric on inside of car. And the water just spreads like a a plague all over the fabric liner inside.
How do I fix the clog and get the darn drain hole draining again?

To snake the front drains, you should have inserted about four or five feet of wire into them and heard the wire hit the car body at the bottom, in front of the door.

Snaking the back drains is almost impossible without removing the assembly and would require five to six feet of wire.

If all four drains are clear then your bad gasket is the next step.

 

[Markus2]

I am researching where to purchase a gasket from as of now.

 

[Markus2]

i noticed a slight drip coming from a small rubber plug under the drivers side rear, aft of the rear tire near the exhaust pipe.
So i started pushing on it till it popped into the compartment it was plugging up and quite some water poured out.
I dont know what i unplugged but at least one-two cups of water poured out of the unknown chamber.
im thinking water drains from sunroof to that compartment maybe via the rear
drain holes on the sunroof.
However, its weird that there is no plug or compartment on the passenger side .

Just the drivers side rear.
odd.
idk-but i dont know much.

 

[OldSchool1]

i noticed a slight drip coming from a small rubber plug under the drivers side rear, aft of the rear tire near the exhaust pipe.
So i started pushing on it till it popped into the compartment it was plugging up and quite some water poured out.
I dont know what i unplugged but at least one-two cups of water poured out of the unknown chamber.
im thinking water drains from sunroof to that compartment maybe via the rear
drain holes on the sunroof.
However, its weird that there is no plug or compartment on the passenger side .

Just the drivers side rear.
odd.
idk-but i dont know much.

If the moonroof is factory*, the drain lines terminate INSIDE the body of the vehicle. Without removing the interior, only the front drains are accessable and only from the roof.

These can be snaked clear with 14 or 16 guage wire or blown/sucked clear with compressed air or a vacuum and a very small hose.

* - A factory moon roof does NOT have a frame attached to the roof of the vehicle.

Front
http://thelincolnmarkviiclub.org/Gallery/pinkin/Dscf2435
http://thelincolnmarkviiclub.org/Gallery/pinkin/Dscf2437

Rear
http://thelincolnmarkviiclub.org/Gallery/pinkin/Dscf2438
http://thelincolnmarkviiclub.org/Gallery/pinkin/Dscf2443

Is this a FACTORY or AFTERMARKET moon roof?

 

[Markus2]

ok

so the plug i pushed up that had water coming out was the plug to the tire well in the trunk.
It was filled with water Because I think from the leak in the moon roof the water flows to the trunk area and fills up the spare tire well hump.

I am having problems ordering a gasket for the factory moonroof-
any suggestions for where to get one?

 

[2manymarks]

Sunroof Drains

I purchased gaskets for the Mark here http://www.sunroofdoctor.com/
some time ago. What Oldschool says is right on. The drains for the factory roof dump into the closed compartment under the door and forward of the wheel well. The drain does not go into the wheel well. That's probably another problem. I used a universal choke control cable to run through the front drains. But you have to pull the headliner to get at the rear ones. Check under the rocker panel and make sure the two drains in the metal are there and clear. If any body work was done to the car, it is possible one or more were sealed shut. The test is to have the car parked on a slight slant in the direction you want to test. I suggest you do the front first. Slowly pour a maximum of 16 oz water into the channel. It should be enough to see it drain out of the drain about 8-12 in behind wheel well. Try compressed air if it is clogged, but if you blow the connector off the drain tube..... After doing the front, put the car at a slight tilt to the rear and repeat the 16 oz pour. If they are clogged, it's pull the headliner for sure and that's major PITA.

The other problem is gasket fit. The drains will only take so much water even if working. When closed, there should only a 0.10 in space between gasket and metal otw the drain trough will fill too quickly and water will slosh out on acceleration or braking. These instructions are covered in the OEM Shop Manual, Chap 46 and are much more detailed there. Also note Oldschool1's link to the Mark VII Club Tech section for good stuff. Good Luck.

 

[Markus2]

thanks folks.

update:been doin suspension work as listed in other threads on here-but have however noticed something.
The hollowed out wheel well for the donut fills up with water like a cup full or more when it rains and the car is sitting.
So i think that leak directly is related to the leak in the moonroof-

Im getting to it. im getting to it.
stand by

 

[OldSchool1]

You may just be suffering from ye ole 'blocked rear window drain' problem. Our rear windows can hold water better than Tupperware if the rear window drain is blocked. This drain is not physical, but is a product of two or more body pieces coming together. The single seam running forward to rearward, starting under our rear window trim and ending in the decklid frame, can become clogged for a myriad of reasons. The one shown above was probably clogged since production (with paint and primer) and eventually lifted the finish around the dam/obstruction/seam.

An easy test is just like what 2ManyMarks said but this time, involves only the rear window and only on the driver's side. LESS than a cup of water would be needed to dis/prove the clogged trough idea. If it's clear, then check the decklid frame.