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Another Fuel Question

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rveighta(at)earthlink.net
Guest

Posted: Tue Aug 05, 2008 4:51 pm Post subject: Another Fuel Question

I have a strong fuel odor  in the cabin of my new RV8 which occurs only during climb attitude. Straight and level, descending and on the ground, there's no gas odor. I've gone over the entire fuel system (wing tanks, vent system, fuel selector valve, boost pump connections, gascolator, fuel pressure transducer, carb connections, mechanical pump connections, etc). I've found a few very small "weeping" connections which have been corrected, but the fuel smell is still there. I have also checked for blue streaks throughout the plane and don't see any. 



Any help with this annoying problem will sure be appreciated.

Thanks,



Walt Shipley

rice737(at)msn.com
Guest

Posted: Tue Aug 05, 2008 7:14 pm Post subject: Another Fuel Question

Hey Walt C 

  

 I had a similar thing C found a loose and weeping screw in the fuel sender access plate.  Good luck C

  

 Paul Rice

 RV8 

 Flying Siren



 	  Quote: 	
		   Date: Tue C 5 Aug 2008 20:50:50 -0400

 From: rveighta(at)earthlink.net

 To: rv-list(at)matronics.com

 Subject: Another Fuel Question

 

 --> RV-List message posted by: rveighta <rveighta(at)earthlink.net>

 

 I have a strong fuel odor in the cabin of my new RV8 which occurs only during climb attitude. Straight and level C descending and on the ground C there's no gas odor. I've gone over the entire fuel system (wing tanks C vent system C fuel selector valve C boost pump connections C gascolator C fuel pressure transducer C carb connections C mechanical pump connections C etc). I've found a few very small "weeping" connections which have been corrected C but the fuel smell is still there. I have also checked for blue streaks throughout the plane and don't see any. 

 

 Any help with this annoying problem will sure be appreciated.

 

 

 Thanks C

 

 Walt Shipl===============

 

 

 


	


  [quote][b]

wskimike(at)mchsi.com
Guest

Posted: Wed Aug 06, 2008 5:35 pm Post subject: Another Fuel Question

It is obviously leaking from the top aft portion of your tank where fuel 

normally doesn't get unless you are in a vertical attitude. Check the 

connector if you have a capacitance fuel indicator. Mine leaked. Also, check 

the fuel vent connection at the root of the tank. I hope this helps.



Mike

---

dale1rv6(at)comcast.net
Guest

Posted: Wed Aug 06, 2008 6:31 pm Post subject: Another Fuel Question

That may be true, but also consider that airflow can be very strong, and can

vary noticeably in different attitudes and speeds. The path of airflow can

change; a small tornado surrounds our fuselage. Check the shape and

condition of the vent openings, too. You can close one tank including

sealing the vent and do a flight test. Then test the other tank. Double

check to be sure one tank is feeding proper before flight, and as always

when testing and being distracted, be prepared for an emergency. Are there

any signs of fuel stains anywhere in the cockpit, checking the entire route

of all fuel line and vent line with a bright light?

Good luck!

Dale



--

chaskuss(at)yahoo.com
Guest

Posted: Wed Aug 06, 2008 6:42 pm Post subject: Another Fuel Question

Walt,

 If you find that the leak is at the bulkhead connector for the capacitance fuel senders (if you have those) be sure to purchase genuine, made in the USA AMPHANOL brand for the replacement. Vans supplies "made in the orient" units, which are not as well designed.

Charlie Kuss

--- On Wed, 8/6/08, wskimike <wskimike(at)mchsi.com> wrote:



[quote] From: wskimike <wskimike(at)mchsi.com>

 Subject: Re: Another Fuel Question

 To: rv-list(at)matronics.com

 Date: Wednesday, August 6, 2008, 9:34 PM

 

 <wskimike(at)mchsi.com>

 

 It is obviously leaking from the top aft portion of your

 tank where fuel 

 normally doesn't get unless you are in a vertical

 attitude. Check the 

 connector if you have a capacitance fuel indicator. Mine

 leaked. Also, check 

 the fuel vent connection at the root of the tank. I hope

 this helps.

 

 Mike

 ---

Vanremog(at)aol.com
Guest

Posted: Wed Aug 06, 2008 8:45 pm Post subject: Another Fuel Question

In a message dated 8/6/2008 7:43:52 P.M. Pacific Daylight Time,  chaskuss(at)yahoo.com writes:

  	  Quote: 	
		  If you    find that the leak is at the bulkhead connector for the capacitance fuel    senders (if you have those) be sure to purchase genuine, made in the USA    AMPHANOL brand for the replacement. 	


 

 Actually the name of the company is Amphenol.

  

  

  

 N1GV (RV-6A, Flying 895hrs, O-360-A1A, C/S, Silicon  Valley) 



Looking for a car that's sporty, fun and fits in your budget? Read reviews on AOL Autos.

  [quote][b]

chaskuss(at)yahoo.com
Guest

Posted: Thu Aug 07, 2008 3:40 am Post subject: Another Fuel Question

My error. I should have placed a comma after the abbreviation USA to clarify that statement.

Charlie

--- On Thu, 8/7/08, Vanremog(at)aol.com <Vanremog(at)aol.com> wrote:



 	  Quote: 	
		   From: Vanremog(at)aol.com <Vanremog(at)aol.com>

 Subject: Re: Another Fuel Question

 To: rv-list(at)matronics.com

 Date: Thursday, August 7, 2008, 12:43 AM

 In a message dated 8/6/2008 7:43:52 P.M. Pacific Daylight

 Time,  

 chaskuss(at)yahoo.com writes:

 

 If you  find that the leak is at the bulkhead connector for

 the capacitance 

 fuel  senders (if you have those) be sure to purchase

 genuine, made in the USA  

 AMPHANOL brand for the replacement.

 

 

 Actually the name of the company is Amphenol.

  

  

  

 N1GV (RV-6A, Flying 895hrs, O-360-A1A, C/S, Silicon 

 Valley)

 

 

 

 **************Looking for a car that's sporty, fun and

 fits in your budget? 

 Read reviews on AOL Autos.      

 (http://autos.aol.com/cars-BMW-128-2008/expert-review?ncid=aolaut00050000000017

 )

rveighta(at)earthlink.net
Guest

Posted: Thu Aug 07, 2008 5:56 am Post subject: Another Fuel Question

Charlie, thank you and the others who have suggested solutions to my fuel leak problem. I do have the Van's fuel level gauges/sending units on my RV8, and after removing the wing to fuselage fairings once again, I believe the right sending unit may be leaking; I don't see any blue stains, but the fiber center of the unit appears dark in color compared to the one on the left side.



You mentioned Amphenol brand sender as better than the Van's standard unit - where can I get them? I've tried googling for Amphenol senders several different ways but don't get anything helpful.



Thanks again....



Walt Shipley



--

sportav8r(at)gmail.com
Guest

Posted: Thu Aug 07, 2008 10:59 am Post subject: Another Fuel Question

He's speaking of electronic capacitance senders; sounds like you have electric, float-type, like mine.  Not the same animal.



-Bill



On Thu, Aug 7, 2008 at 9:55 AM, rveighta <rveighta(at)earthlink.net (rveighta(at)earthlink.net)> wrote:

 [quote]--> RV-List message posted by: rveighta <rveighta(at)earthlink.net (rveighta(at)earthlink.net)>

  

 

 Charlie, thank you and the others who have suggested solutions to my fuel leak problem. I do have the Van's fuel level gauges/sending units on my RV8, and after removing the wing to fuselage fairings once again, I believe the right sending unit may be leaking; I don't see any blue stains, but the fiber center of the unit appears dark in color compared to the one on the left side.

  

 You mentioned Amphenol brand sender as better than the Van's standard unit - where can I get them? I've tried googling for Amphenol senders several different ways but don't get anything helpful.

 

 Thanks again....

 

 Walt Shipley

 



 --

chaskuss(at)yahoo.com
Guest

Posted: Fri Aug 08, 2008 7:25 am Post subject: Another Fuel Question

Walt,

 The Amphenol part originally refered to is the bulkhead electrical connector, not the sender plate itself. I will send you a post off list with more pertenient info.

Charlie

--- On Thu, 8/7/08, rveighta <rveighta(at)earthlink.net> wrote:



[quote] From: rveighta <rveighta(at)earthlink.net>

 Subject: Re: Another Fuel Question

 To: rv-list(at)matronics.com

 Date: Thursday, August 7, 2008, 9:55 AM

 

 <rveighta(at)earthlink.net>

 

 

 Charlie, thank you and the others who have suggested

 solutions to my fuel leak problem. I do have the Van's

 fuel level gauges/sending units on my RV8, and after

 removing the wing to fuselage fairings once again, I believe

 the right sending unit may be leaking; I don't see any

 blue stains, but the fiber center of the unit appears dark

 in color compared to the one on the left side.

 

 You mentioned Amphenol brand sender as better than the

 Van's standard unit - where can I get them? I've

 tried googling for Amphenol senders several different ways

 but don't get anything helpful.

 

 Thanks again....

 

 Walt Shipley

 

 --

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