Image Unavailable, Please Login Brake dust Image Unavailable, Please Login Won two trophies, some oil and wine . Image Unavailable, Please Login Other Italian competition Image Unavailable, Please Login Another GT 4 , our prizes . Image Unavailable, Please Login Image Unavailable, Please Login Hi , guys 77 GT4 so assume same Aircon system as 308 series . It works fine I re gassed it before bringing the car to Switzerland.I,ve been competing in a a tough alpine classic car rally and noticed ...... Firstly on tight hairpins ( accent and decent ) a funny fan noise as if the blade were hitting something ...... Secondly actually water tipping out ( after an hour or so ) from under the two centre vents or lateral . We had to place a towel and the radio spontaneously turned on . First day was 300 km of time trails I ended up disconnecting the radio to cut its power . Anyhow after day two the foot well carpets were wet . There is thread on here ...... something about” insulation breaking down “ inside the pan and humid air condensation forming ....something along those lines ?? You have to just live with it . I did run a piece of bush whacker line up the pipe under the front valance , which I assume is the AC drain . That drain drains as well when the car is parked like any other car it does not appear blocked . Do what’s to be done ? Is it a restriction of the main drain ? Does the pan under the dash where the cold matrix sit need a modification? Anybody removed the dash pan ? Any suggestions great fully recommended- except drive on flat roads with the AC off .
I have some experience with this on my 1975 GT4... the drip pan tray has shallow walls around the edges, and when I back down my driveway it likes to pee on my wife's feet. It doesn't look like there are any easy mods to the drip pan that will fix the problem, so I basically keep a spare towel in the passenger footwell. It's a nuisance, but the pan usually drains okay when the car is level. If humidity is high the tray can accumulate enough to slosh out during hard turns. My bigger frustration is the exceptional Italian A/C system... my nipples have ice cycles on them and my back is sweating like crazy. I guess we could move to California where the weather is more accommodating, but my paycheck is here in Texas.
Yes seems it’s another Italian idiosyncrasy to add to the ever lengthy list . Post #23 ...... something about a fitting a pad to stop it moving - sloshing about and spilling out .... presumably on gradients / g forces @ corners ? https://www.ferrarichat.com/forum/threads/air-conditioner-water-leaking-onto-passenger-foot-well.163173/ This threads old and wondered if a miracle cure has been formulated.
I dont know the evaporator but i do know that the drain from the trays can get blocked up on any ac plant. You might want to try blowing a gentle stream of compressed air up the drain line. Also after time the tray may be half full of dirt after so many years so the water is coming over the tray edge rather than down the drain. Think about fitting an extra drain or spraying a solution of washing up liquid and hot water onto the evaporator to try and wash the tray clean(all assuming you dont have to take it to bits) Dont use any caustic soda based cleaners as it will eat the aluminum and you get a load of white toxic fumes
Probably a cracked evaporator housing. Like on my car. When I rebuilt my A/C I removed the evaporator and repaired the housing with GRP. A quick fix -though a hack job-would be looking for any cracks on the lower edges and repairing it with any kind of sealant. Other possibility is a leaking seam of the two part housing. Best from Germany martin
I have also found the drain hole/hose not enough for the water to drain and the water blows out the lower air hose joint. Also a super high condensation in the air vent will produce water.... just saying.....
Resurrecting this thread the cars in the U.K. now so today I investigated this wet feet thing particularly for the wife’s shoe benefit. Was planing on drilling a hole and creating my own drain .......attaching a pipe at the low point and running out somewhere?? Peel back the carpet and remove the metal foot rest ( 4 screws ) . Behind that low and behold at the bottom corner of the plastic drain / AC housing is a drain already there.Yippee ! It’s that rubber pipe that exits through the removable alloy inspection plate under the front end . This is it’s other end . Image Unavailable, Please Login Still a bit of damp on this side .The unit is mostly on the passenger side on LHD , hence wife’s feet got wet the most ! Image Unavailable, Please Login There it is fixed with a copiglia band , so I had to cut it off . Image Unavailable, Please Login Here it is detached .I used strimmer cord , wire and compressed air to clear both the exit pipe and of corse up into the “ pan “ So hopefully with the OEM drain patent that should do it .
This happened to me with my 2001 456M, so it's possible with most models. Dead crickets clogged the condensation drain. Not a problem if your garage is secured and climate controlled.
Image Unavailable, Please Login Image Unavailable, Please Login Image Unavailable, Please Login Image Unavailable, Please Login Few more pics of the box .Not mine but I think they add to the completeness . That foam around the core matrix is responsible for the black fragments you may see flying out of the central vents .
Bentley put a box of relays under the passenger foot well . The HVAC drip pan drains are tiny one each side of the tranny tunnel .So when theses block water escapes out of the central pan into the foot wells . Damp carpet .The relay box lid has a poor seal . Inside is the keyless start and stop module and relay .Get that wet and the starter motor can burn out . So what a few hundred quid and being VAG an Audi or VW part .... what’s the problem? Er it’s an engine out job to access the starter motor !!! So for me going back to the 70 ,s is DIY heaven , no ECU , not even fuel injection on a carbed car .....as simple as wheel barrow to work on .
