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01-20-2007, 11:51 AM
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Join Date: Jan 2007
Location: Rochester
Posts: 8
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Fuel tanks
I have my fuel tanks all done with no leaks. Does any one prime the two end ribs and baffles before they install it on the main spar.
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01-20-2007, 12:03 PM
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Join Date: Dec 2005
Location: Hamilton, New Zealand
Posts: 632
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I did...
...since I've decided to primed pretty much everything, I went ahead and did so. Was it worth it? Maybe I'll let you know in twenty years or so!!
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01-20-2007, 04:26 PM
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Join Date: Mar 2006
Location: Sandpoint, Idaho
Posts: 487
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I primed the whole tank... skins, end ribs, back bulkhead... everything.
Karl
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RV-8 #80240 SOLD
1999 BMW R1100RS
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01-20-2007, 05:59 PM
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Join Date: Aug 2005
Location: Pasadena CA
Posts: 2,484
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Same as the rest of the airplane. Up to you...
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Stephen Samuelian, CFII, A&P IA, CTO
RV4 wing in Jig @ KPOC
RV7 emp built
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01-20-2007, 07:00 PM
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Join Date: Jan 2005
Posts: 3,642
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If your end ribs are a little messy with proseal like mine, primer hides some of it! 
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Steve M.
Ellensburg WA
RV-9 Flying, 0-320, Catto
Donation reminder: Jan. 2021
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01-20-2007, 07:39 PM
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Join Date: Jan 2005
Location: Atlanta, GA
Posts: 2,295
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Not to beat the dead primer horse again....
but what primer did you guys use on the inside of the tanks? Just curious as the construction manual explicitly warns against doing that.
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"What kind of man would live where there is no daring? I don't believe in taking foolish chances but nothing can be accomplished without taking any chance at all." - Charles A. Lindbergh
Jamie | RV-7A First Flight: 7/27/2007 (Sold)
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01-20-2007, 07:48 PM
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Join Date: Dec 2005
Location: Hamilton, New Zealand
Posts: 632
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None!
Actually, I wimped out and had my tanks built by Evan Johnson. I'm pleased to say that he didn't primer the inside though! After I fitted everything to the wings, I primered all the outside ribs & rear baffle (not the main skin yet) prior to re-installation.
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01-20-2007, 09:26 PM
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Join Date: Jan 2005
Posts: 3,642
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Quote:
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Originally Posted by Jamie
Not to beat the dead primer horse again....
but what primer did you guys use on the inside of the tanks? Just curious as the construction manual explicitly warns against doing that.
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I don't think any of us (except maybe Karl?) are talking about priming anything except the outside of the end ribs and outside of the baffle.
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Steve M.
Ellensburg WA
RV-9 Flying, 0-320, Catto
Donation reminder: Jan. 2021
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01-21-2007, 11:19 AM
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Join Date: Aug 2005
Location: Pasadena CA
Posts: 2,484
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I highly suggest AGAINST priming the inside. Fuel reaction on primer could be unknown, and proseal doesn't stick to primers as well. Both these could lead to leaks later, and potentially clog screens later on too.
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Stephen Samuelian, CFII, A&P IA, CTO
RV4 wing in Jig @ KPOC
RV7 emp built
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01-22-2007, 07:19 AM
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Join Date: Mar 2006
Location: Sandpoint, Idaho
Posts: 487
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Quote:
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Originally Posted by alpinelakespilot2000
I don't think any of us (except maybe Karl?) are talking about priming anything except the outside of the end ribs and outside of the baffle.
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Absolutely DO NOT prime the inside of the tank. I was trying to say that I primed the entire outside of the tank before mounting it on the wing. I did this because I live on the Texas gulf coast... lots of salt air around here. I primed everything on the plane... with the exception of the inside of the tanks. 
Karl
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RV-8 #80240 SOLD
1999 BMW R1100RS
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