rear drains, where does the water come from?

Everything that doesn't belong in the previous categories probably belongs here. Interiour (how are the seats mounted? how to remove the CEM?) and exteriour (how to replace the popup-lights shock absorbers or a door) are discussed here!

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timrosser
Advanced 480 rookie
Posts: 543
Joined: Thu Oct 21, 2010 2:22 pm

rear drains, where does the water come from?

Post by timrosser » Fri Dec 07, 2018 10:05 pm

Hi All,

Am I right in thinking water from the sun roof makes its way out the car down a gutter that runs down the rear metal pillar (to the side of the hatch) and out in that little pocket behind the boots plastic storage boxes?

I ask because this is the rusyest bit of my 480, and I dont have a sun roof!

Somewhat bitter ;-)

Ortovox77
480 Newbie
Posts: 44
Joined: Fri Sep 14, 2018 10:50 pm

Re: rear drains, where does the water come from?

Post by Ortovox77 » Mon Dec 10, 2018 3:25 pm

On my old 480 with sun roof I cannot remember seeing any draining holes in the list around the sun roof. From what I know the sunroof should be leak free, and I haven't had any big problems with water coming in on that car in the rear.
But on my current 480's the sealant around the rear light and the cable pass through in the top of the rear hatch leak into the back of the car.

/Jonas
------------------------------------------------
Volvo 480 Turbo 1994
Volvo 480 ES/GT 1995
Volvo 480 Turbo 1988
Volvo 480 Turbo 1990 (will be scrapped)
BMW Z4 coupe (ESS supercharged)
Saab 9-5 2006
Rotax DD2 Gokart
------------------------------------------------

Alan 480
480 Is my middle name
Posts: 1058
Joined: Sun Aug 28, 2011 9:03 am
Location: Aberdeen

Re: rear drains, where does the water come from?

Post by Alan 480 » Wed Dec 12, 2018 12:41 pm

timrosser wrote:
Fri Dec 07, 2018 10:05 pm
Hi All,

Am I right in thinking water from the sun roof makes its way out the car down a gutter that runs down the rear metal pillar (to the side of the hatch) and out in that little pocket behind the boots plastic storage boxes?

I ask because this is the rusyest bit of my 480, and I dont have a sun roof!

Somewhat bitter ;-)
AFAIK , yes tubes run to those pockets, not sure how it gets out :wink:

but if rusty, remove the foam pads from the air vents area :D
Alan

480 ES 2litre x 2, C30 1.8ES, SS1

jifflemon
480 Is my middle name
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Joined: Sat Dec 17, 2016 11:03 am

Re: rear drains, where does the water come from?

Post by jifflemon » Thu Dec 13, 2018 8:46 am

Alan 480 wrote:
Wed Dec 12, 2018 12:41 pm

AFAIK , yes tubes run to those pockets, not sure how it gets out :wink:

but if rusty, remove the foam pads from the air vents area :D
How its gets out, is via this little hole...

Image

So, you're viewing the "pocket" from the point of the view of the airvent - Obviously, the air vent is removed. This is the drivers side.

At the front of the pocket you can see the drain hole. Underneath the pocket, you can see the plastic shelf that holds the utter evil and stupid foam pad, AKA the rust maker.

The drain hole can become blocked with dirt, that's collected in the foam pad, from dirt thrown off the road wheels and into the rear bumper area.

So, step one, remove the foam pad (its a bumper off job)
step two, make sure your drain holes are clear.

timrosser
Advanced 480 rookie
Posts: 543
Joined: Thu Oct 21, 2010 2:22 pm

Re: rear drains, where does the water come from?

Post by timrosser » Thu Dec 13, 2018 9:44 am

Thanks for the tips guys, I will certainly purge the foam!

T

Alan 480
480 Is my middle name
Posts: 1058
Joined: Sun Aug 28, 2011 9:03 am
Location: Aberdeen

Re: rear drains, where does the water come from?

Post by Alan 480 » Thu Dec 13, 2018 12:53 pm

jifflemon wrote:
Thu Dec 13, 2018 8:46 am
Alan 480 wrote:
Wed Dec 12, 2018 12:41 pm

AFAIK , yes tubes run to those pockets, not sure how it gets out :wink:

but if rusty, remove the foam pads from the air vents area :D
How its gets out, is via this little hole...
At the front of the pocket you can see the drain hole. Underneath the pocket, you can see the plastic shelf that holds the utter evil and stupid foam pad, AKA the rust maker.

The drain hole can become blocked with dirt, that's collected in the foam pad, from dirt thrown off the road wheels and into the rear bumper area.

So, step one, remove the foam pad (its a bumper off job)
step two, make sure your drain holes are clear.

'can' = 'will' :wink:

I thought that you could remove the foam pad from below with a bit of brute force?

any way the drains on mine were not too clever and as they are not really at the 'lowest point' . . . . . .
Alan

480 ES 2litre x 2, C30 1.8ES, SS1

timrosser
Advanced 480 rookie
Posts: 543
Joined: Thu Oct 21, 2010 2:22 pm

Re: rear drains, where does the water come from?

Post by timrosser » Fri Dec 28, 2018 3:41 pm

I'm thinking of making a fiberglass 'pannel-cum funnel' to go in this area, and just chop out any of the surviving metal that may be in this area, any idea of the dimensions so I can perhaps stick it in place from the underside?

Best

Tim

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