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  #1  
Old 05-30-2016, 10:18 AM
todehnal todehnal is offline
 
Join Date: Jan 2005
Location: Kentucky Lakes area in KY
Posts: 980
Default Gas Cap

I've been meaning to post this for a long time. Each time I think about doing it, I consider how trivial it is, and that I may well be the only person on this earth that did not know this. So, here we go. While at the RV fly-in at Petit Jean last year, I was chatting with another RV-12 guy, and the subject got around to gas caps. I mentioned that often I had difficulty in removing the cap. I made a nice tool for lifting the tab, but the well fitting "O" ring made the cap removal a real struggle. We happened to be standing by my RV-12, and he politely demonstrated a simple procedure. All it takes is a little push down on the stem, and the cap can be easily removed. What a simple fix for an aggravating problem. After lifting the tab, that little push down on the strm relieves the tension that is against the "O" ring. This may not be much help to most of you, but if it just saves one guy from this struggle that I have been having for over a year, it was worth posting.

What a fantastic bird!!!..........Tom
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2013- RV12, Kit #119. N123M First flight Nov21. It's a keeper!
1998- RV-9 tail kit, built and sold
1989- RV-6 tail kit, built and sold

Last edited by todehnal : 05-30-2016 at 10:21 AM.
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  #2  
Old 05-30-2016, 11:20 AM
RFSchaller RFSchaller is offline
 
Join Date: Oct 2010
Location: Phoenix, AZ
Posts: 3,161
Default

Tom,

I have to periodically adjust the tension nut on my cap. A light coating of lithium grease on the O-ring seems to help too.

Rich
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  #3  
Old 05-30-2016, 11:25 AM
DHeal DHeal is offline
 
Join Date: Sep 2006
Location: Windsor, California
Posts: 1,005
Default

Good tip Tom. Speaking of RV-12 fuel caps: Since my fuel cap is one of the early "vented" variety, my pre-flight inspection includes checking the vent's proper functioning by removing the cap and blowing through the vent hole. It is quick and easy to do, and it is reassuring to know that some little critter hasn't made a home in my vent. One of these days, I'll probably get around to installing Van's new-style fuel venting system.
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David Heal - Windsor, CA (near Santa Rosa)
EAA #23982 (circa 1965) - EAA Technical Counselor and Flight Advisor; CFI - A&I
RV-12 E-LSA #120496 (SV w/ AP and ADS-B 2020) - N124DH flying since March 2014 - 1,080+ hours (as of Oct 2021)!
VAF donation through June 2022.
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  #4  
Old 05-30-2016, 12:30 PM
todehnal todehnal is offline
 
Join Date: Jan 2005
Location: Kentucky Lakes area in KY
Posts: 980
Default

Yea, a little grease on the latch pivot and plunger make the operation smoother. I've never used it on the gasket though. Also, blowing through the vent hole is reassuring. Also, I have only tied down outdoors a few nights, but I tape over the entire cap with blue painters tape; probably a little overkill, but I don't want any water in my fuel tank.
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2013- RV12, Kit #119. N123M First flight Nov21. It's a keeper!
1998- RV-9 tail kit, built and sold
1989- RV-6 tail kit, built and sold
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  #5  
Old 05-30-2016, 03:47 PM
DHeal DHeal is offline
 
Join Date: Sep 2006
Location: Windsor, California
Posts: 1,005
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I am very careful when I temporarily cover my fuel cap in anticipation of rain. That cover could be an easy thing to forget during a subsequent pre-flight (or lack thereof). Use multiple warning flags, cockpit notes, etc. to remind yourself of the cover. I have even rigged-up a "rip-away" style cover using aluminum foil and a small piece of tape that shields the cap from rain yet would get blown away by the propeller blast.
__________________
David Heal - Windsor, CA (near Santa Rosa)
EAA #23982 (circa 1965) - EAA Technical Counselor and Flight Advisor; CFI - A&I
RV-12 E-LSA #120496 (SV w/ AP and ADS-B 2020) - N124DH flying since March 2014 - 1,080+ hours (as of Oct 2021)!
VAF donation through June 2022.
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  #6  
Old 05-30-2016, 07:46 PM
todehnal todehnal is offline
 
Join Date: Jan 2005
Location: Kentucky Lakes area in KY
Posts: 980
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When I'm going to use the blue painters tape on the gas cap, I always remove the ignition key first, then tape it at the end of the roll of tape and store it in the baggage area. Not impossible, to forget but highly unlikely.
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2013- RV12, Kit #119. N123M First flight Nov21. It's a keeper!
1998- RV-9 tail kit, built and sold
1989- RV-6 tail kit, built and sold
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  #7  
Old 05-30-2016, 09:21 PM
Mich48041 Mich48041 is offline
 
Join Date: Apr 2008
Location: Riley TWP MI
Posts: 3,234
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I put the gas cap on orientated with the vent hole up. If parked outside, I cover the top half of the gas cap with tape. If I forget to take the tape off, no big deal. Air can enter the vent but not rain, unless water can run up hill.
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Joe Gores
RV-12 Flying
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  #8  
Old 05-31-2016, 03:31 AM
Piper J3's Avatar
Piper J3 Piper J3 is offline
 
Join Date: Nov 2014
Location: Hinckley, Ohio
Posts: 2,559
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Interested in the plastic opener but shipping is $7.00
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Jim Stricker - EAA #499867
PPL/ASEL 1970 - Sport Pilot since 2007
80 hrs Flying Aeronca Chief 11AC N86203
1130 hrs Flying 46 Piper J-3 Cub N6841H
Bought Flying RV-12 #120058 Oct 2015 with 48TT - Hobbs now 750

LSRM-A Certificate 2016 for RV-12 N633CM
Special Thanks... EJ Trucks - USN Crew Chief A-4 Skyhawk
MJ Stricker (Father - CFI) - USAAF 1st Lt. Captain B-17H
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  #9  
Old 05-31-2016, 09:29 AM
sf3543 sf3543 is offline
 
Join Date: Jan 2005
Location: San Antonio, TX
Posts: 1,093
Default Gas cap opener

Instead of investing in one of the pricey openers, I just use a shorty 3/8" wrench.
You can hang it on a key chain, use the box end to open the gas cap top plus it might come in handy for use as a wrench, in an emergency.
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Steve Formhals
A&P, Tech Counselor & Flight Advisor
RV3B
Legend Cub
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  #10  
Old 05-31-2016, 12:06 PM
RFSchaller RFSchaller is offline
 
Join Date: Oct 2010
Location: Phoenix, AZ
Posts: 3,161
Default

Swiss Army knife works great with the flat blade screwdriver.
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