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Carbs - how fuel tight / sealed are they?


Boombang

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Been a long time since I played with carbs, sounds like an odd question perhaps but here goes:

 

Are they sealed or over time does fuel evaporate from the bowls?

 

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Thanks for that, was pretty sure they had to have a vent to work.

 

The reasoning behind my question, apart from satisfying my curiosity, is I live in a town house - the garage is directly below my living room and has a standard interior ceiling.

 

If you put something stinky in the garage it seeps up into the living room.  Methinks a carbed car probably isn't the best purchase...

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Didn't think of that...  When I stripped my last Saxo spares car at my parents you could smell the fuel in the house however - there garage is on the side with a door and a utility room between.

 

Make any difference if it has a sealed garage door (as airtight as an insulated section door gets) with a door into the hallway?

 

When I painted a few bits in there it absolutely stank in the living room, but guessing the paint solvent was lighter than air.

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My car is in the double garage beneath my bedroom

No problems

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My car is on carbs and used to stink the house out for an hour or two after a run. By chance I was checking something with the engine running and I spotted a leak when revving the engine. The pipe had split under the jubillee clip. Fixed the leak and no more smells.

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Ahhh, but to me there's no better smell than opening up the garage to that aroma of fuel and oil in the morning (more so when I had the Pinto engine)

 

Smells like...victory! :laugh:  

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Normal evaporation shouldn't cause a problem. If you smell petrol in the house check for leaks. Another option is to fit a switch to the pump and switch it off and let the engine empty the carbs,

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I thought integral garages had to have highly rated for fire penetration ceilings at least. Half of my garage is under my sitting room but it has a Bison beam type of (concrete) ceiling.

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I have an integral garage, after driving the car I let it sit on the drive for an hour then push it in the garage. No petrol fumes at all using this method.

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I thought integral garages had to have highly rated for fire penetration ceilings at least. Half of my garage is under my sitting room but it has a Bison beam type of (concrete) ceiling.

 

Built in 1978 so might not be quite to the same standards as now.  Could always drop a smoke bomb in it and see if anything seeps through.

 

Great! Mines uphill...   :bangshead:

 

 

:d

 

Ditto, a nice steep one too!

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My garage ceiling is fireproofed 

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When you drive home, turn the fuel

Pump off about 200 yards from home , carbs will be virtually empty and no smell !

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