Looking for Pictures of tank filler necks for 102 gallons

[Rick Junkin]

Does anyone with the 102 gallon capacity tanks have pictures of your filler necks you’re willing to share? I’m interested in the size, shape and location of the holes or cutouts that vent the necks for the extra capacity.

Thanks in advance.

Cheers,
Junkman

[exM20K]

Here you go:

[exM20K]

Second photo from China, I think.  @carusoam to the white courtesy phone, please

[LANCECASPER]

Those are the ones for the Acclaim. The Bravo that Rick has used the larger Shaw fuel caps, but the neck might be a similar depth

[Schllc]

I thought those new style caps were placarded for 100 gallons?

That is what my acclaim with the new caps is in the poh and placards.  The old style caps on my 2007 had a different  filler neck, and the placard was for 102 gal.  
They  didn’t have those caps until 2008, I don’t believe the tanks changed so the filler caps must be the reason for the lower capacity. 
 

[carusoam]

Hey!

Sorry for the late reply…. 

in 94 the fuel neck was a simple tube shape with a large slot running down the side…

the slot allows for a fair amount of air to escape, such that the tank fills to the brim as air is vented through the rib’s tiny holes uphill…

thus the fuel nozzle can hang on the bottom of the neck without pulling out with the weight of the hose…

it had an ordinary Shaw cap.

looks like it is cut and welded from a heavy SS sheet material…

PP thoughts only, not a mechanic… all from old fuzzy memories.

My placarding is the standard old numbers from the POH…

those numbers are found in at least three places…  cap, gauges, selector switch…

Best regards,

-a-

 

Edited March 20 by carusoam

[carusoam]

On 3/13/2024 at 10:24 PM, exM20K said:

Second photo from China, I think.  @carusoam to the white courtesy phone, please

Hey Dan!

see my response above.

Best regards,

-a-

[carusoam]

@Rick Junkin

Let me know if you still need a pic.

I have to work on that hangar home…

I would have posted a pic already…

Best regards,

-a-

[Rick Junkin]

9 minutes ago, carusoam said:

@Rick Junkin

Let me know if you still need a pic.

I have to work on that hangar home…

I would have posted a pic already…

Best regards,

-a-

Thanks Anthony - yes, still wanting pics of the various filler necks.

Cheers,
Junkman

[carusoam]

2 minutes ago, Rick Junkin said:

Thanks Anthony - yes, still wanting pics of the various filler necks.

Cheers,
Junkman

Should take a day or two…

after that, send a reminder… 

best regards,

-a-

[Alan Maurer]

Hi, I will be at he airport and will get some photos of filler neck...2008 Ovation Think it can total 103 gal

Alan

[carusoam]

20 hours ago, Rick Junkin said:

Thanks Anthony - yes, still wanting pics of the various filler necks.

Cheers,
Junkman

 

A few pics as promised Rick!

 

 Has anyone seen the attach a pic button from my iphone?

pics are…

cap with labels near by

cap opened showing the locking ring

down the dark hole with the tube like fuel neck…

cap chain dangling for length reference…

dollar bill to reference the length of chain links…

other places limitations are posted…

Fuel tank vent… 

note: there are no holes or any type of vent in the fuel neck…an error in my previous description…

 

filling the last few gallons takes time… the head pressure of the column of fuel is minuscule, and air has to get pushed all the way to the vent…

 

To post pics… it might require me to get my membership up to date!

 

 

-a-

[carusoam]

Got my PayPal issues straightened out… next up, I’ll get these pics uploaded once the PayPal payment goes through…

-a-

[carusoam]

@Rick Junkin

i’m back….   
 

pics I took of my O1’s fuel tank bits and pieces…

Filling a tank beyond its 44.5g limit… takes patience.

a large air bubble is captured above the fuel neck….

all of that air needs to move through tiny air holes, specifically  put in a few wing ribs….

there are matching holes at the bottom of the ribs to allow fuel to drain towards the pick-up tube.

all of that air makes its way to the vent uphill….

As the tank fills… the head pressure to move the air gets less and less…

 

How was that?

This is one of my favorite discussions… I first met @Cris on MS, discussing how to increase the fuel capacity for his soon to be Screamin’ Eagle.

He returned the favor several times… as I followed his guidance for the Standing Ovation upgrade, and other things… 

 

cap with labels near by

 

cap opened showing the locking ring

 

down the dark hole with the tube like fuel neck…

probably need to brighten the screen to see it better….  Start by looking at the vertical weld line that is barely visible in this pic…

 

 

cap chain dangling for length reference…

 

dollar bill to reference the length of chain links…

 

other places limitations are posted…

fuel selector valve, on the floor, centered between pilot and copilot seats… easy to reach! 

 

fuel cap label indicating gallons…

 

fuel level indicator, gallons.

 

 

Fuel tank vent…  found at the uphill end of the fuel tank.  Seen from under the wing.

 

mechanical fuel level gauge, designed for partial tank filling, accurate while on level ground.

tank looks empty in these pics, actually has 10 gal in it…

Sparkles in the paint mixture look more like chips in the paint here…

 

best regards,

-a-

[exM20K]

Wouldn’t a little J-shaped snorkel accomplish the same thing? 
-dan