VansAirForceForums  
Home > VansAirForceForums

- POSTING RULES
- Donate yearly (please).
- Advertise in here!

- Today's Posts | Insert Pics

  #21  
Old 01-10-2014, 10:16 AM
brad walton brad walton is offline
 
Join Date: Jul 2007
Location: Cypress, TX
Posts: 526
Default

Ok. First determine there is a leak and then start looking for it. Soapy water works well for that. When I tested mine with the manometer method, I detected leak down and found the only leaks were at connections and the gas cap. Covered the gas cap with duct tape and still found very small leak at an overlap of the tape. But once these miniscule leaks were corrected, my manometer rose and fell with temperature and barometric pressure.
Reply With Quote
  #22  
Old 01-10-2014, 06:53 PM
Robert Anglin Robert Anglin is offline
 
Join Date: Mar 2008
Location: houston, texas
Posts: 900
Default Sorry.

Mr. Walton is on the right track and yes the balloon is to keep you from over doing a pressure level in the tank as it does not take more than 4-6 p.s.i.g. for one to bust a seam wide open. Sorry I did not mention the old soap trick before, it should be part of the testing of a tank. Only one comment the little bottles of soap you get down at Lows or in some hardware store aviation department, that are used to test for gas leaks on a home hot water heater.
These seam to work the best of any we have run across as the stuff bubbles up to show a leak better than any other soap we have found to date.
If it hold good pressure for a couple of days and you don't find any soap bubbles then fill it with mow-gas and let it set for a couple of days. You may still see a small wet spot. If you need to then you can drain the fuel and put it in your road mobile tell you fix that wet spot. "Don't ask the answer is yes" hope this helps Yours as always R.E.A. III #80888

Last edited by Robert Anglin : 01-10-2014 at 06:54 PM. Reason: My bad
Reply With Quote
  #23  
Old 01-12-2014, 07:55 PM
Mark Jackson Mark Jackson is offline
 
Join Date: Oct 2009
Location: Houston
Posts: 65
Default Damaging the tanks

I ended up using 1/2 tubing to construct a manometer. It worked as advertised and I found a couple pinhole leaks in the corner seals.

Thanks very much for all the replies, like drinking from a firehose.

__________________
Mark Jackson
Houston, TX
RV-8 in progress/Mooney in the hangar.
Reply With Quote
  #24  
Old 01-13-2014, 05:49 PM
Robert Anglin Robert Anglin is offline
 
Join Date: Mar 2008
Location: houston, texas
Posts: 900
Default Trek or Canondal?

Houston, an inverted fuel tank and a good road bike tire pump.
How could we not? Yours as always R.E.A. III # 80888
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -6. The time now is 01:20 AM.


The VAFForums come to you courtesy Delta Romeo, LLC. By viewing and participating in them you agree to build your plane using standardized methods and practices and to fly it safely and in accordance with the laws governing the country you are located in.