Soggy Footwell

Soggy Footwell

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pb450

Original Poster:

1,302 posts

160 months

Wednesday 19th November 2014
quotequote all
I have a (very) wet driver's footwell. Passenger side is bone dry. Yay! This has only happened recently. All dry before then.

There is a gaping great gap on the hose grommet in the inner wing nearest the front of the car, directly under the bonnet vents, so it makes sense that this is the culprit.

The hose in question is either the brake servo or the carbon canister, not sure which. Both pipes seem to enter the footwell behind (or ahead of, whichever way you look at it) the bulkhead at the end of the footwell.

Trouble is, i only found the wet carpets 2 weeks after the down-pour so capillary action and general soaking have meant the water has moved around a fair bit since then.

Am I right in assuming the brake servo sits in here and any water entering through the top of the inner wing here will pass under the bulkhead and into the main footwell.

Peter

SILICONEKID345HP

14,997 posts

231 months

Wednesday 19th November 2014
quotequote all
pb450 said:
I have a (very) wet driver's footwell. Passenger side is bone dry. Yay! This has only happened recently. All dry before then.

There is a gaping great gap on the hose grommet in the inner wing nearest the front of the car, directly under the bonnet vents, so it makes sense that this is the culprit.

The hose in question is either the brake servo or the carbon canister, not sure which. Both pipes seem to enter the footwell behind (or ahead of, whichever way you look at it) the bulkhead at the end of the footwell.

Trouble is, i only found the wet carpets 2 weeks after the down-pour so capillary action and general soaking have meant the water has moved around a fair bit since then.

Am I right in assuming the brake servo sits in here and any water entering through the top of the inner wing here will pass under the bulkhead and into the main footwell.

Peter
Bit of advice ,do not use stikaflex or high modulus silicone ,use low modulus so you can remove it in the future and it will just rub of with your fingers .

http://www.siroflex.co.uk/sections/SXrange/TSsilic...



pb450

Original Poster:

1,302 posts

160 months

Wednesday 19th November 2014
quotequote all
Good call Daz. This is exactly what Dan Taylor told me for the same reasons. I have a nice tube of black silicone sealant ready for the job. smile

QBee

20,976 posts

144 months

Wednesday 19th November 2014
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All seals under the bonnet into the wing are likely culprits. I though they were my problem for months. Every time I set off after a downpour I got wet legs on the first right and left corners.

Then I got a Leven half cover, which coves the screen washer pipes too.......and the problem stopped.

pb450

Original Poster:

1,302 posts

160 months

Wednesday 19th November 2014
quotequote all
Thanks Anthony.

This is the culprit. I can almost see the sign "water enter here".


davelittlewood

306 posts

133 months

Wednesday 19th November 2014
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Also check the seal around the brake fluid reservoir.

Mine leaked there the day I picked it up from the dealer.


ukdj

1,004 posts

184 months

Thursday 20th November 2014
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Peter,

You are probably right on the money but just in case .....

the usual suspects for leaks are :-

Brake fluid reservoir seal around it on the inner wing
Clutch fluid reservoir cover on the inner wing
Hose grommets on the inner wing
ID plates/rivets on the inner wing
Brake Hose connections through the inner wing
Bonnet Release cable through the inner wing
Wiring Loom on N/S through the inner wing (see the pattern here !!!)
windscreen seal
Door seal either front edge or at the pinch points
Around the windscreen wiper spindles/washer tubes

Get some tolleys sealant :-

http://www.ebay.co.uk/itm/Captain-Tolleys-Creeping...

pb450

Original Poster:

1,302 posts

160 months

Thursday 20th November 2014
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Dr Mike Oxgreen, YHM. Not sure if you're receiving? smile

Dr Mike Oxgreen

4,114 posts

165 months

Friday 21st November 2014
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Oops - sorry, it was languishing in my spam folder.

I did indeed have a similar problem, and the problem is now cured but I'm not sure how or why!

Back in the spring, a company van rolled across the car park and clonked into the front of my Chimaera, doing some fibreglass and paint damage. It ended up going to Surface & Design for the repair, and knowing how busy they were I mentioned my leak problem and asked them to remove the carpet from the driver's footwell and store it inside so it didn't get wet and go smelly.

Ever since the car came back, it has sat outside in lashing rain and not leaked a drop - so I wonder what magic Surface & Design applied to it. Was it just the effect of some disassembly and reassembly, or did they kindly apply a bit of sealant somewhere?

I had previously smeared sealant around the usually culprits under the bonnet: reservoir covers, grommets etc - all to no effect.

I'll try getting in touch with Dave at S&D, and see if he can remember my car and what they might have done to it. I always intended to let him know how happy I am with the repairs, but never got around to it.

pb450

Original Poster:

1,302 posts

160 months

Friday 21st November 2014
quotequote all
Hahaha...Thanks Dave.
Strange.... Same symptoms as you so I thought you'd hold the magic answer.
Let me know if any news comes back from S&D.

davo23

318 posts

152 months

Tuesday 25th November 2014
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I've got the same issue, except it's on the passenger footwell, as far as i can see there are no obvious entry points under the bonnet that side. The only other potential place is if it's getting behind the indicator lens.

Milky400

1,960 posts

178 months

Wednesday 26th November 2014
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Grommets around where the battery box bolts. From memory it is simply bolted to the fibre glass and over time with movement it open these holes up. Happened in my old Chim

pb450

Original Poster:

1,302 posts

160 months

Wednesday 26th November 2014
quotequote all
Windscreen rubber or even wiper/washer penetrations through the bodywork.

Apply some detective work here. Has it recently started happening after some any kind of work? (related or seemingly unrelated) Does it occur when parked in rain or only when the car is on the move?

Dry the whole area out thoroughly, (my wife's hairdryer came in handy for this task - cheap rental if anyone wants to borrow. smile) then leave the footwell mat out for a while. Park the car in the rain again, or dirve it - whatever causes the leak - but this time with a carefully laid out lining of kitchen towel, all round the floor and lapped under the edges of the carpet all round to hold it in place. This will 'name and shame' (or soak and show) where the problem starts. It may not give you the full answer but it will give you a good lead. These things are a process of elimination and it will narrow down the cause. You frequently have to work backwards to find the problem with such things.

If it turns out to be the battery box fixings in the floor (seems unlikely, unless you're driving through 6" puddles all the time) the kitchen towel will show damp patches where you've tucked it under the edge of the battery box. (In extreme cases my specialist will actually drill a couple of 6mm holes in the 'gutters' within the floor pan to let out any sloshing water! They tell me the water never comes back in via this route - unless you go looking for those big puddles again.)

Not sure if any of the ECU bits and pieces bolt through the bulkhead at the end of the footwell but this could also be a point of ingress, if they do.

The worst thing to undo any detective work is to leave the damp (or wet) carpets in place for a couple of weeks, (like I did) which allows the water to gently soak its way all around the footwell and scupper your hopes of finding the cause.

Kitchen towel comes in many different shades. Find one to suit your tastes. smile Just don't carry a passenger for a while, cos they'll surely mess it all up!

Good luck to all Soggy Footwellers at this time of the year! thumbup

QBee

20,976 posts

144 months

Wednesday 26th November 2014
quotequote all
davo23 said:
I've got the same issue, except it's on the passenger footwell, as far as i can see there are no obvious entry points under the bonnet that side. The only other potential place is if it's getting behind the indicator lens.
Have you checked the floor behind the seat? I had leaking targa seals, which meant the floor behind the seats got wet, and the wet found its way downhill to the footwell. Leaking heater pipes are another poss.

davo23

318 posts

152 months

Wednesday 26th November 2014
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Thanks for all the tips, I have checked the carpet behind and that is damp too. I will continue some detective work to find the source. I've also got some renovo to redo the roof just to improve that.