Wet passenger floorboards, new leak found!
12-22-2012, 05:30 AM
#1
Instructor
Thread Starter
Wet passenger floorboards, new leak found!
I have searched all over and found many different places people have found their leaks. i was discouraged that i couldnt find mine. finally i did, and i feel like i should post it just in case someone else has the same problem! this isnt a place i have seen anyone else mention!
I figured i would start my testing, and move upwards. so first i pulled back the carpet enough to see the bottom of the firewall. its a pain to do!
i had my friend pour water around the cruise control motor, OUTSIDE of the battery tray area, but near where the battery tray would drain, while i watched for water inside. guess who got lucky?
here is the culprit. it was a tiny looking crack. hard to see. but it let a shocking amount of water through! i mean i have been getting puddles. and he poured just a few cap fulls of water and i got a nice stream inside. bizarre to me.. i could only watch as it accumulated at the bottom of the firewall inside so i couldnt see up where it was actually coming through. but heres the spot:
below the drain (i had already chiseled away the old stuff in this one):
in the corner of the flat spot, level with the exhaust manifold, you can kind of see the crack right in the center of the corner
now chiseled away, theres a nice 3/4" square hole underneath that IS supposed to be there, but should be covered up and not visible. water goes in, and into the car!
fiberglassed over it:
then spray-on truckbed lined over it. no pic of that. will report back after the next rain!!
I figured i would start my testing, and move upwards. so first i pulled back the carpet enough to see the bottom of the firewall. its a pain to do!
i had my friend pour water around the cruise control motor, OUTSIDE of the battery tray area, but near where the battery tray would drain, while i watched for water inside. guess who got lucky?
here is the culprit. it was a tiny looking crack. hard to see. but it let a shocking amount of water through! i mean i have been getting puddles. and he poured just a few cap fulls of water and i got a nice stream inside. bizarre to me.. i could only watch as it accumulated at the bottom of the firewall inside so i couldnt see up where it was actually coming through. but heres the spot:
below the drain (i had already chiseled away the old stuff in this one):
in the corner of the flat spot, level with the exhaust manifold, you can kind of see the crack right in the center of the corner
now chiseled away, theres a nice 3/4" square hole underneath that IS supposed to be there, but should be covered up and not visible. water goes in, and into the car!
fiberglassed over it:
then spray-on truckbed lined over it. no pic of that. will report back after the next rain!!
12-26-2012, 07:49 PM
#3
Instructor
Thread Starter
rather unfortunately, i came out to a puddle this morning again.
I KNOW im getting close.
I wasnt pouring water into the tray even and i could see it coming inside when i tested this area before. so it has to be near there. im going to have to inspect further down the seam when i get back to my shop! ill post up what i find!
I KNOW im getting close.
I wasnt pouring water into the tray even and i could see it coming inside when i tested this area before. so it has to be near there. im going to have to inspect further down the seam when i get back to my shop! ill post up what i find!
02-03-2015, 01:30 AM
#4
Rennlist Member
Thanks! I'll check out my early 944 resto project, and check this area out more thoroughly... and it was coming INTO the car from there? or was it coming OUT of the car at that point? looks like you solved the problem though.why did you fiberglass it instead of using silicone sealant? Because it's structural ? How is the inside of the frame rail? jus wonderin...Thanks, Tiger 03447
