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  #1  
Old 01-03-2018, 03:23 PM
dsommers dsommers is offline
 
Join Date: Jan 2013
Location: Walla Walla WA.
Posts: 18
Default RV 3 Fuel Drain

I have an older RV 3 that I will soon have flying again, the builder only had a fuel sump at the gascolator on the firewall, it has a fuselage tank, is this adequate ? The gascolator is below the tank, just seems to far away from the tank to drain the water out if there is some, what do others have?
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  #2  
Old 01-03-2018, 03:27 PM
Mike S's Avatar
Mike S Mike S is offline
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Join Date: Sep 2005
Location: Dayton Airpark, NV A34
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Default

As long as it is below the tank, should be fine.

Water is heavier than avgas, so that is why you sump at the low point of the system.
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Flying as of 12/4/2010

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  #3  
Old 01-03-2018, 04:13 PM
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Larry DeCamp Larry DeCamp is offline
 
Join Date: Apr 2010
Location: Clinton, Indiana
Posts: 606
Default Tubing routing ?

Make sure the tubing goes down hill CONTINUOSLY with no low spots to the gascolator.
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  #4  
Old 01-03-2018, 04:17 PM
rv8or rv8or is offline
 
Join Date: Oct 2007
Location: Norwich England
Posts: 137
Default Fuel Tank Drain

My RV3 has a fuel tank drain as well as a firewall gascolator drain.
I have never had a problem with water but Iím pedantic in keeping the fuel tank full When I know Iím going away and not flying the 3 for a couple of weeks.
If your tank is the same as mine with a flop tube you could get quite a bit of water in the tank before any would would show at the gascolator. But this could also mean whilst flying there is a potential to pick up a lot of water.
When I had my tank repaired I recalibrated my fuel gauge and from empty it took 2 litres of fuel before there was enough fuel for the pump to start pumping.

Points for consideration

Happy flying
Rob
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  #5  
Old 01-03-2018, 06:54 PM
dsommers dsommers is offline
 
Join Date: Jan 2013
Location: Walla Walla WA.
Posts: 18
Default Fuel Tank Drain

Thanks for all the input, I guess I'll just leave it the way it is, just wanted to make sure it would do the job.
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