FYI--- Gas Caps

[M Towsley]

Re: FYI--- Gas Caps

Excellent idea, Hank. I will be talking to my friend with the plasma cutter in the next day or two to see if he can cut them out. I don't want to stamp them because they usually turn out looking like junk and non-uniform. I know the originals weren't uniform, either, but for the time I am going to be putting into these I want them to look nice.

Can someone please provide the dimension of the main tank tube, inside and outside as well as the length above and below the cap top? A picture would also be nice. Thanks!!!

[cvavon]

Re: FYI--- Gas Caps

Marty

Look at my earlier post it has the dimensions you are asking for Chuck

[M Towsley]

Re: FYI--- Gas Caps

Thanks for the call, Chuck, got it!

If I can get a good clear photo, top, bottom and sideview of the main tank tank from someone I would still appreciate it.

[Pearson]

Re: FYI--- Gas Caps

Will these help?

[M Towsley]

Re: FYI--- Gas Caps

Richard,

Actually, I need clear closeups of the gas cap only, not the tank. But thanks for some nice shots!!!

I should have said main tank CAP, my fault!

[Hank Jarrett]

Re: FYI--- Gas Caps

How about these?
Hank

[M Towsley]

Re: FYI--- Gas Caps

Thanks, Hank. Just what I was looking for. I want to show a couple of people how these are set up.

Also, what is the inside and outside diameter of the tube???

[Hank Jarrett]

Re: FYI--- Gas Caps

Sorry, they are 35 miles from here right now in the hangar. Should be able to scale the tabs from the top view but all I know is the tube has a larger ID than the diameter of the wire. Wish I knew the diameter of the wire,
The tube through the main tank cap for the float wire DOES appear to be hard brass (like from a hobby shop) NOT the softer tube used on the wing tank caps. The main tank cap tube feels like brass and the wing tubes feel like copper.
Hank

Hope you guys understand what I mean by "feels". NO I cant tell the alloy by feeling it.

You have to taste it and i don't like doing that on soldered materials.

[Pearson]

Re: FYI--- Gas Caps

Well, looks like Hank beat me to it. But since I took these, I figure I might as well post them. The Tube OD is .250". The ID is harder to measure with the wire installed, but the best I could tell is .180". Those measurements are from the lower end of the tube. The upper end is swedged down to a smaller diameter on the ID and OD.

[M Towsley]

Re: FYI--- Gas Caps

Richard,

Thanks, those look good. I noticed on some of these the top of the tube looks slightly beveled. hmmmmm. Chuck had some type of bondo-like material around the top of his??? Anyway, I'm just doing a correct size tube, nothing too fancy. I also noticed yours is backwards like Chuck's when it comes to the GAS - 12 GAl. My old ones said 12 GAL then GAS. I guess it depends upon who was brazing that day...

Hank,

My old wing tank caps, and my current ones on this plane, used copper for the breathers. I think my old main tank cap used a steel tube. I don't need the tab size, I already have those sized from my good wing tank caps.

[O.Taylor]

Re: FYI--- Gas Caps

[ I also have NEVER seen a vent hole at the back of the tube. It helps defeat the purpose of the ram tube! I would solder the hole up

I've held a fair number of fuel caps in my hands over the years, I've never seen holes in the back of the tubes, maybe it is something done over there on the other side of the pond, where those guys talk funny. O.T.

[Jim Herpst]

Re: FYI--- Gas Caps

Funny yes but well on average do wish OUR country men would remember the kings english !!!

[Robert Lees]

Re: FYI--- Gas Caps

[ I also have NEVER seen a vent hole at the back of the tube. It helps defeat the purpose of the ram tube! I would solder the hole up

I've held a fair number of fuel caps in my hands over the years, I've never seen holes in the back of the tubes, maybe it is something done over there on the other side of the pond, where those guys talk funny. O.T.

Au contraire, Mr O.Taylor. The fuel caps shown in my photos are from a US-built Taylorcraft that spent the majority of its life in Texas, where mud daubers, wasps, bugs and similar nasties from southern US States originate.

[Pearson]

Re: FYI--- Gas Caps

Maybe that (dirt daubers&bugs) is why the Harer STC has you install an additional vent line to both wing tanks. Makes sense now. I just wish someone had a picture of one they had done.

[Jim Herpst]

Re: FYI--- Gas Caps

Robert Lees has many picture posted on his UK site. Not sure the vent install is there. I was asking for dimensions and some technical on the hardware needed for the 85 hp upgrade (what size and where to weld plates etc) While the pics are helpfull to "get the idea" one really needs the drawings to do the work. Soo even for my clip wing they suggested I purchase the STC from Terry Bowden. I understand this as Terry has assumed a great support for our Ships that frankly has been long overdue.