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Author Topic: Drain outlet from cabin air intake  (Read 1239 times)
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John Larkin
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Posts: 34


« on: 14 February, 2021, 04:32:49 PM »

1949 Aprilia Berlina:  There is a rain water drain outlet from the cabin ventilation intake in front of the windscreen; I'm trying to unblock it.  I have managed to get a stiff wire to go down the drain outlet pipe to a distance of about 70-80cm, but no further.  I sprayed WD40 into the drain in an attempt to soften up whatever is blocking it, but none has appeared out anywhere.  Does anybody know where the drain outlet emerges? 

John.
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John Larkin
1949 Aprilia berlina
tzf60
Senior Member
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Posts: 132



« Reply #1 on: 15 February, 2021, 01:16:37 PM »

Hi John,
The pipe turns through two 90 degree bends before ending up on the passenger side between the bulkhead and the lower (removable - with engine bay stripped) bulkhead cover. At least that's the case on my car.
 
Regards,
Tim
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1939 Series 1 Aprilia undergoing very slow restoration.....
 
Previous Lancias: 1979 Beta Sedan 2000, 1982 Delta 1500, 1988 Delta 1.3, 1992 Dedra 1.8ie
John Larkin
Member
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Posts: 34


« Reply #2 on: 15 February, 2021, 08:47:15 PM »

Thanks Tim.  I'll poke around and see what I can find.
John.
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John Larkin
1949 Aprilia berlina
Dave Gee
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Posts: 168


« Reply #3 on: 16 February, 2021, 09:59:11 AM »



  On my car 37/38 it runs in side the car and exits throu the floor next to the clutch pedal


  Dave
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tzf60
Senior Member
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Posts: 132



« Reply #4 on: 16 February, 2021, 11:04:34 AM »

That's very interesting, Dave. By fitting the pipe inside the cabin, it is very accessible. The way it was fitted to my 1939 model, it would have been next to impossible to access. When the drain pipe on my car rusted out, it would have required amazing dexterity to complete a repair.
 
Tim


* IMG_20210216_102516.jpg (1389.19 KB, 1728x2304 - viewed 76 times.)
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1939 Series 1 Aprilia undergoing very slow restoration.....
 
Previous Lancias: 1979 Beta Sedan 2000, 1982 Delta 1500, 1988 Delta 1.3, 1992 Dedra 1.8ie
John Larkin
Member
***
Posts: 34


« Reply #5 on: 16 February, 2021, 07:31:47 PM »

Tim,
Your photo helped me find the drain pipe.  I can now try unblocking it from its nether end.
Thanks!
John.
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John Larkin
1949 Aprilia berlina
SanRemo78
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Posts: 710



« Reply #6 on: 16 February, 2021, 08:59:04 PM »

If you've got the top end handy can you use a compressor to blow it through? I had a similar problem with an Alfa 159 sunroof, when the pipe blocked the interior flooded. Really flooded. I managed to unblock them from the wheel arch end (Convoluted routing precluded passing anything down it's length) but I was told that Autolusso just blow them through with an airline.
Guy
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tzf60
Senior Member
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Posts: 132



« Reply #7 on: 17 February, 2021, 02:06:45 PM »

Hi John,
If you managed to get 70-80cm down the pipe, you may be very close to the end of the pipe, in which case Guy's suggestion might work.
 
My pipe rotted right at the resevoir, so joining a new pipe will be tricky, as there is no pipe left! I'll use copper next time  Wink
 
Tim
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1939 Series 1 Aprilia undergoing very slow restoration.....
 
Previous Lancias: 1979 Beta Sedan 2000, 1982 Delta 1500, 1988 Delta 1.3, 1992 Dedra 1.8ie
John Larkin
Member
***
Posts: 34


« Reply #8 on: 17 February, 2021, 05:22:33 PM »

I tried blowing out the blockage with compressed air, but it seems to be well-clogged up.  I'm pouring WD40 down the drain tube daily, so hopefully it will loosen up soon.

John.
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John Larkin
1949 Aprilia berlina
John Larkin
Member
***
Posts: 34


« Reply #9 on: 03 March, 2021, 02:11:34 PM »

WD40 slowly wept from the bottom of the drain pipe over several days, but the blockage remained.  I put acetone down the pipe hoping to wash through any greasy/oily gunge.  After a second treatment with acetone and lots of poking with a stiff steel wire all the muck came out! These little victories are very pleasing. 
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John Larkin
1949 Aprilia berlina
SanRemo78
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Posts: 710



« Reply #10 on: 03 March, 2021, 07:05:39 PM »

I see they just dug up a chariot in Pompeii! Did your archaeological investigations reveal anything remotely as interesting?
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John Larkin
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Posts: 34


« Reply #11 on: 04 March, 2021, 07:53:59 AM »

There was a note from a leftie Lancia production line worker with the the message:"Quindi hai finalmente eliminato il blocco!"
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John Larkin
1949 Aprilia berlina
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