Where does water/debris drain out?

[matthon]

So, I reached my hand down in the back side window area, arrow, because the whatever sprayed on the inside of the quarter was flaking off, only to find loads of crap.
It seems when water/debris would eventually make it's way down there it would fill up the rocker.

I had a parts car, and when I took the fenders off I noticed the plug at the front of the rocker. Too high to drain water even if removed, and packed with debris that couldn't escape.

The cowl has 2 plugs, 1 at the top of the firewall, and 1 on the passenger side of the firewall (circled on the driver's side where it is on pass).
Both at the bottom of the areas they are in, but once again, too high to drain water/debris even if removed.

So how the heck is stuff supposed to flow out unobstructed, and not rot your car out?

Same with the trunk extensions if water ever gets in, but water and junk will definitely get down in between the windows.

 

[Lee Robinson]

So, I reached my hand down in the back side window area, arrow, because the whatever sprayed on the inside of the quarter was flaking off, only to find loads of crap.
It seems when water/debris would eventually make it's way down there it would fill up the rocker.

I had a parts car, and when I took the fenders off I noticed the plug at the front of the rocker. Too high to drain water even if removed, and packed with debris that couldn't escape.

The cowl has 2 plugs, 1 at the top of the firewall, and 1 on the passenger side of the firewall (circled on the driver's side where it is on pass).
Both at the bottom of the areas they are in, but once again, too high to drain water/debris even if removed.

So how the heck is stuff supposed to flow out unobstructed, and not rot your car out?

Same with the trunk extensions if water ever gets in, but water and junk will definitely get down in between the windows.

View attachment 799073 View attachment 799075 View attachment 799076

There should be a drain on each side of the cowl. The rockers have drains on the bottom of the pinch welds. I suspect that the holes
at the front of the rocker were for jig fixtures when the car was manufactured. Same with the plugged holes in the floor.

 

[khryslerkid]

There's only one drain for the cowling and it's the passenger side. That's why you see so many drivers side cowlings rusted out.

If you would remove the large hose under the dash that comes off the blower motor (under and behind the glove box) you'll see inside the kick panel where the water from the cowling goes. In between the pinch welds under the rocker, you'll see small openings every so often and they are the drain holes. It doesn't take much to clog them up.

The oval holes, one on the right firewall and the one under the fender on that side, are cabin pressure valves. Allows pressure to escape when running the heater and or ac blower. Probably helps when closing the doors with the windows up too. They have an oval rubber flap in each one that acts as a valve. They're not drains but act like one when the cowling gets full of debris.

I always heard the plug holes in the floors were to allow the dipping solution to run out after the dipping process.

 

[matthon]

Behind my kick panels is also loaded with junk.
I saw the oval hole on the right firewall, I didn't notice the flap, but it makes sense, like the flaps on my door vents on another car.
I didn't see an oval one under the fender on the right, I'll take another look.

I was thinking there should at least be the tiny oval holes, like I see in some doors, somewhere.

I cleaned this entire car out, high pressure water, soap, scrubbed it, but the cowl and rockers are still clogged up.
Gotta open them up and free the junk.

If there are drain holes where the quarters meet the trunk extensions I don't see them.

 

[Lee Robinson]

Behind my kick panels is also loaded with junk.
I saw the oval hole on the right firewall, I didn't notice the flap, but it makes sense, like the flaps on my door vents on another car.
I didn't see an oval one under the fender on the right, I'll take another look.

I was thinking there should at least be the tiny oval holes, like I see in some doors, somewhere.

I cleaned this entire car out, high pressure water, soap, scrubbed it, but the cowl and rockers are still clogged up.
Gotta open them up and free the junk.

If there are drain holes where the quarters meet the trunk extensions I don't see them.

I'm more familiar with A bodies and I think all of them had cowl drains on both sides. The plugs in the floors could be drains.
They are pretty large holes.

 

[Photon440]

My trunk extensions had plugs with drains.

 

[493 Mike]

I filled the oval-flap holes on my 65 with fiberglass resin to allow better drainage. I also glassed the entire cowl area after removing the top panel (piece with grill).
Mike

 

[Darter6]

Yeah the early "B's" had poor engineering such as the rear window drains under the trim drained into the trunk and was supposed to exit the little drain slots in the quarter extensions . Those drains would clog and water would lay and rust out the bottoms of the quarters. Once the drains clogged under the rear window trim the water would puddle till it rusted that area out.
But they never built these things to last forever.
When I bought a 64 Dart I emptied out a 5 gallon bucket of dirt and debris from the door bottoms,cowl and trunk.Had to clean out my shop vac several times.

 

[matthon]

Rear window drains under the trim is news to me.
My trunk extension plugs don't have drain slots, or any other visible drain holes.

And, of course, since the plug is higher than the bottom of the extension, that's where it rusted thru.

It also seems, based on my 62 parts car from a junkyard, water will sit at the base of the windshield under the seal. And it looks like that is also where the windshield 'bubbled' or where the layers of glass separated.

Parts car also taught me under the drip rail trim is a whole world of debris with no escape route.