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  #31  
Old 05-13-2018, 04:00 PM
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agirard7a agirard7a is offline
 
Join Date: Aug 2009
Location: Newport, RI
Posts: 635
Default Testing tank

I also did a pressure test and squirted soapy water and found no leaks until they where mounted on my plane and full of fuel. My recommendation in testing the tank is to put a 1/2- 1 gallon of fuel in them and lay them on the floor rear baffle side down. If they are going to leak, it will be a high percentage chance coming from the rear baffle area. If you see stains on the floor you will know. Also, I used the thinner viscosity proseal to repair leaks. It will flow better into small areas.
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Al Girard, Newport, RI
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RV-9
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  #32  
Old 05-13-2018, 05:46 PM
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RV8JD RV8JD is offline
 
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Quote:
Originally Posted by wirejock View Post
No one mentioned this.
Make up your mind that evey part of the building process will be fun. Be happy as you walk into the factory.
Maybe one needs to watch/listen to this a few times before starting the tanks.

https://youtu.be/d-diB65scQU
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Carl N.
Arlington, WA (KAWO)
RV-8, 355 Tach Hours
(Pic 1),(Pic 2)
- Out with the Old, In with the New
(Pic)
RV-8, 1938 Tach Hours (Pic 1),(Pic 2) - Sold

Glasflügel Standard Libelle 201B, N564NS - Sold
Rolladen-Schneider LS1-f, N61MP - No longer owned
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  #33  
Old 06-02-2018, 09:03 PM
didja didja is offline
 
Join Date: Jan 2017
Location: Goodyear, Az
Posts: 25
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So, I decided to go ahead and try to do one myself and see how it goes! I'm just about to start pro sealing. I've got everything prepped and deburred and in place to be ready to be put in when I need them, trying to minimize the time of assembly before the pro seal dries up!

I'll post pics of the final product. Thanks for all the input!
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Scott Emerson
RV-14a Kit# 140432
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  #34  
Old Yesterday, 11:05 PM
didja didja is offline
 
Join Date: Jan 2017
Location: Goodyear, Az
Posts: 25
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So, I have constructed my left tank to the point where I just finished my second attempt at the water test before placing the back baffle in place. My first attempt saw two holes that I had not gooped enough pro-seal over on the inner rib. I drained the tank and commenced to gooping all that I could.

A day and a half after applying the pro-seal, I tried my second attempt. I now have a small leak from one of the same join locations but instead of a steady stream, it is not only about 60 drops a minute, so I will apply more goop and that should fix that.

The other issue that I had, was the gas cap. I had a pretty solid stream coming from the seal of the gas cap. I drained the water back down below the cap level and replaced the gas cap with the cap that would have gone onto my right fuel tank. I now seem to have a *very* slight leak where after about a minute or two, a small dew drop size water drop forms at the fuel cap, but doesn't run immediately.

Has anyone had experience with the rv-14 supplied gas caps from van's being an issue in sealing? Also, being as this would only leak if I stayed inverted for a very long time, is this of concern? I'm assuming that I want zero leaks as I am not sure that it would pass the pressure test or not (depending on if the pressure test actually forced the gas cap seal to close up and therefore hold pressure)….. I just am not sure if there is an acceptable amount of leakage from the gas cap or not.

I will try to figure out how to post pictures again to show what I am speaking to....
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RV-14a Kit# 140432
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  #35  
Old Yesterday, 11:22 PM
didja didja is offline
 
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Location: Goodyear, Az
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RV-14a Kit# 140432
Working on: Wings
Construction log: https://www.youtube.com/channel/UCaZ...Uv2rlQsHtdRmmg
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  #36  
Old Yesterday, 11:25 PM
didja didja is offline
 
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Location: Goodyear, Az
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This was after about 20 minutes of sitting. its just a very small bead that has formed but has not gone anywhere. I'm not sure if this is suitable, or if I should be looking to correct it somehow? It is definitely coming from the gas cap seal, and not the gas cap frame that is sealed and riveted in place. When I pressed on the first gas cap that was leaking a solid stream, the stream would stop, and then when I replaced the gas cap with the other gas cap that was supplied by vans, this was the end result, so I am very confident that it is just the o-ring seal on the cap itself.
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Scott Emerson
RV-14a Kit# 140432
Working on: Wings
Construction log: https://www.youtube.com/channel/UCaZ...Uv2rlQsHtdRmmg
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  #37  
Old Today, 12:28 AM
didja didja is offline
 
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Location: Goodyear, Az
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Well, never mind, I’m an idiot! After looking at the cap some more, I realized it had a spring tension nut and simply tightened the nut a couple turns. Problem solved and no leak at the cap....
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Scott Emerson
RV-14a Kit# 140432
Working on: Wings
Construction log: https://www.youtube.com/channel/UCaZ...Uv2rlQsHtdRmmg
Donation Paid (military)
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  #38  
Old Today, 08:14 AM
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RV-14E RV-14E is offline
 
Join Date: Jun 2018
Location: Colorado
Posts: 65
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Quote:
Originally Posted by didja View Post
Well, never mind, I’m an idiot! After looking at the cap some more, I realized it had a spring tension nut and simply tightened the nut a couple turns. Problem solved and no leak at the cap....
Here's that nut.

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  #39  
Old Today, 08:41 AM
jerry sparks jerry sparks is offline
 
Join Date: Aug 2013
Location: Scottsdale AZ
Posts: 24
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I did my own tanks on my 14A at KDVT. Call me and I can give you a couple of pointers. Jerry
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