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Fuel Caps

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kearney

Joined: 20 Sep 2008
Posts: 563

Posted: Tue Feb 23, 2016 6:14 pm Post subject: Fuel Caps

Hi



I have been wondering about how hard it should be push the locking tab on a fuel cap into place. One of mine was very, very difficult so I ended up backing off the retaining nut. 



Anyway, is there any lubrication (fuel lube perhaps) required.



How snug should the tab be?



Inquiring minds need to know.



Les

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Dave Saylor

Joined: 11 Jan 2015
Posts: 210
Location: GILROY, CA

Posted: Tue Feb 23, 2016 6:47 pm Post subject: Fuel Caps

The thermos bottle caps take some regular maintenance.  You'll need a little light grease on the lobe of the handle cam.  I found a grease called Krytox (sorry, there are several types and I don't recall which I went with) for the oring.  Works great.



Fuel lube, contrary to what the name implies, is really a sealant and will gum up the works in short order.  It works best to lube pipe threads, etc. between dissimilar metals, ie, to prevent galling aluminum pumps and such.  And it's fuel proof, but not exactly slippery.

--Dave

On Tue, Feb 23, 2016 at 6:14 PM, kearney <kearney(at)shaw.ca (kearney(at)shaw.ca)> wrote:

 	  Quote: 	
		  --> RV10-List message posted by: "kearney" <kearney(at)shaw.ca (kearney(at)shaw.ca)>

 

 Hi

 

 I have been wondering about how hard it should be push the locking tab on a fuel cap into place. One of mine was very, very difficult so I ended up backing off the retaining nut.

 

 Anyway, is there any lubrication (fuel lube perhaps) required.

 

 How snug should the tab be?

 

 Inquiring minds need to know.

 

 Les

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=453106#453106

 

 

 

 

 

 

 

 ===========

 br> fts!)

 r> > w.buildersbooks.com" rel="noreferrer" target="_blank">www.buildersbooks.com

 rel="noreferrer" target="_blank">http://www.matronics.com/contribution

           -Matt Dralle, List Admin.

 ===========

 -List" rel="noreferrer" target="_blank">http://www.matronics.com/Navigator?RV10-List

 ===========

  FORUMS -

 eferrer" target="_blank">http://forums.matronics.com

 ===========

 b Site -

           -Matt Dralle, List Admin.

 rel="noreferrer" target="_blank">http://www.matronics.com/contribution

 ===========

- The Matronics RV10-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?RV10-List

_________________
--Dave
KWVI

Kellym

Joined: 10 Jan 2006
Posts: 1705
Location: Sun Lakes AZ

Posted: Tue Feb 23, 2016 7:09 pm Post subject: Fuel Caps

While not identical, Beech and Mooney fuel caps require something like 

Triflow or silicone lube on O-rings. I've also used DC-4 where I wanted 

to last longer...same stuff you use on oil filter o-ring.



On 2/23/2016 7:14 PM, kearney wrote:

 	  Quote: 	
		   



 Hi



 I have been wondering about how hard it should be push the locking tab on a fuel cap into place. One of mine was very, very difficult so I ended up backing off the retaining nut.



 Anyway, is there any lubrication (fuel lube perhaps) required.



 How snug should the tab be?



 Inquiring minds need to know.



 Les





 Read this topic online here:



 http://forums.matronics.com/viewtopic.php?p=453106#453106

- The Matronics RV10-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?RV10-List

_________________
Kelly McMullen
A&P/IA, EAA Tech Counselor # 5286
KCHD

Dave Saylor

Joined: 11 Jan 2015
Posts: 210
Location: GILROY, CA

Posted: Tue Feb 23, 2016 7:41 pm Post subject: Fuel Caps

I found my old order for Krytox:



http://www.mcmaster.com/#dupont-krytox-gpl-206-grease/=119achu



A 1/2 oz tube has lasted for a couple seasons now-- $$$ but worth it.  Avgas doesn't seem to phase it.

I only use it on the fuel cap orings.



--Dave

On Tue, Feb 23, 2016 at 7:05 PM, Kelly McMullen <kellym(at)aviating.com (kellym(at)aviating.com)> wrote:

 	  Quote: 	
		  --> RV10-List message posted by: Kelly McMullen <kellym(at)aviating.com (kellym(at)aviating.com)>

 

 While not identical, Beech and Mooney fuel caps require something like Triflow or silicone lube on O-rings. I've also used DC-4 where I wanted to last longer...same stuff you use on oil filter o-ring.

 

 On 2/23/2016 7:14 PM, kearney wrote:

  	  Quote: 	
		   --> RV10-List message posted by: "kearney" <kearney(at)shaw.ca (kearney(at)shaw.ca)>

 

 Hi

 

 I have been wondering about how hard it should be push the locking tab on a fuel cap into place. One of mine was very, very difficult so I ended up backing off the retaining nut.

 

 Anyway, is there any lubrication (fuel lube perhaps) required.

 

 How snug should the tab be?

 

 Inquiring minds need to know.

 

 Les

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=453106#453106

 

 

 

 

 

 

 

 

 

 

 	
 

 ===========

 br> fts!)

 r> >  href="http://www.buildersbooks.com" rel="noreferrer" target="_blank">www.buildersbooks.com

 rel="noreferrer" target="_blank">http://www.matronics.com/contribution

           -Matt Dralle, List Admin.

 ===========

 -List" rel="noreferrer" target="_blank">http://www.matronics.com/Navigator?RV10-List

 ===========

  FORUMS -

 eferrer" target="_blank">http://forums.matronics.com

 ===========

 b Site -

           -Matt Dralle, List Admin.

 rel="noreferrer" target="_blank">http://www.matronics.com/contribution

 ===========

- The Matronics RV10-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?RV10-List

_________________
--Dave
KWVI

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