Removing the fuel tank.....

[HA]

the stuff Spruce sells is listed as a B-2 on the website, so that means 2 hr working time. the cure times etc are in the instruction sheet, page 2
http://www.aircraftspruce.com/catalog/p ... 0specs.pdf

[n2582d]

... Does anyone have a copy of the Cessna Service Letter referenced in this post? (http://www.cessna170.org/forums/viewtop ... 564#p57816) I've googled it and can't find it anywhere. ...

SL 170-172-19
SE70-28

[GAHorn]

Be sure to correct that (insufficient) fueling placard. (Fuss at your IA for missing it.)

[Bruce Fenstermacher]

I'd use the correct one which includes 80. Doesn't matter it's not available. My label also says MOGAS in case I find it without ethanol.

[roamak]

Thanks Aryana, Im following your progress and am almost convinced my fuel leak is the gaskets around the filler neck. Unfortantly I wont be able to tear into it for a while but I'm very glad I'm getting great feedback from everyone.
If anyone does not have Jim's power point its excellent! I haven't looked but I think Bruce was going to put it in the files here.
I cant wait to find out whats going on with my 2 different sump drains!

[bagarre]

Why not paint stripper?

[jlwild]

Yup wish you lots of luck, especially when you start sliding the tank covers back into the wing bay slots without scratching the paint

[bagarre]

Could also squirt some LPS-2 along the seam to be carried in with the panel. That should compensate for any scratches.
From the slide deck, it looks like a couple dozen cheap plastic spatulas of various widths from HomeDepot would be very helpful.

[n2582d]

Aryana,
As you are already this far into the project I'd encourage you to take a look for wear/chaffing around the whole tank. This would also be a good time take check for corrosion behind the wood blocks that attach to the spar.

[roamak]

Aryana, I don't know how clean everything looks in your tank bay but I think (without looking at mine own yet) that I would have to agree with n2582d. I cant see myself getting to a point were I can really get a good look into something but really not doing it. Seems like replacing the filler gaskets would be too easy for me and something would happen and a week later I would be tearing it back apart mad as hell I didn't do it right the first time.
Let me know how the cover goes back on. Thanks!
Greg

[170C]

Removing those tanks will also give you the opportunity to replace those 50+ year old hoses on the vent line, if you haven't already done so. Good luck.

[blueldr]

If an inspection reveals that the vent hoses are old and need replacing, don't forget that there two hoses on that vent line at the base of the gooseneck up under the headliner in the center of the cockpit. I sure as hell forgot them until I had the exciting experience of a dripping fuel leak and fuel soaked headliner on a flight into Johnson Creek,ID,when I dumped the nose for a rapid letdown into the canyon with full tanks. Boy, let me tell you that will really tighten up the old drawstring.
When you dump the nose with full tanks, that cross cabin vent line will flood with liquid fuel.

[GAHorn]

Which placard would you use? 100LL only, since 80 isn't available anymore? Or does the 80/100 placard make sense since 80 is the min required for the engine. I previously had the 80/100 around the filler necks but those were put on 20 years ago....

Fuel placards (in fact, any tank or container on an airplane) should indicate:
TYPE/GRADE/QUANTITY. Such as "Fuel" or "AvGAS" or "AVGAS/GASOLINE" per "ASTM yadayadayada". "21 U.S. gals."
Those placards do not meet the complete rule.

"Hydraulic Fluid, Mil-5606, 2.4 U.S.Gal." "Engine Oil, SAE 50, 8 qts." "Engine Oil, MIL-L-6082E, 2 U.S. gallons" "Oxygen, Liquid Breathing, 18 L."etc etc

[bagarre]

Does anyone have a source for placards that meet the rule?

sharpie.jpg

[GAHorn]

Does anyone have a source for placards that meet the rule?

Cessna Airplane Co. or the holder of whatever STC to which your airplane is subject. Spruce also sells a few.

My own is custom-painted at the filler.