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Fuel tank leaks.


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Polygone works. You have to have the right temp and a lot of patience. Works best with the original sealant. It doesn’t do well on the patches. I had to pull or scrape them off. Lots of patience. I did used aluminum tape around the access cut outs. That will protect against Polygone or any other stripper. I am painting that section on both wings later on. 

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On 11/8/2022 at 6:57 PM, rrodriguzzi1 said:

Polygone works. You have to have the right temp and a lot of patience. Works best with the original sealant. It doesn’t do well on the patches. I had to pull or scrape them off. Lots of patience. I did used aluminum tape around the access cut outs. That will protect against Polygone or any other stripper. I am painting that section on both wings later on. 

Great job of documenting your tank work, thank you.

How much Sealant did you use for your job and which one? Did you use cartridge applicator or stuff in a can? 

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16 minutes ago, Igor_U said:

Mooney service manual recommends PR1403-G-B2 for sealing removable access panels in the tank. I read it is discontinued in North America. 

What do you typically use as a replacement?

 

The manual lists three different sealants for access panels.

CS-3330-B

PR1403-G-B2

PR1428-B

You will find one of them.

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19 minutes ago, Igor_U said:

Mooney service manual recommends PR1403-G-B2 for sealing removable access panels in the tank. I read it is discontinued in North America. 

What do you typically use as a replacement?

 

I just Googled PR1403-G-B2 and got about 5 pages of places selling it.

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1 minute ago, N201MKTurbo said:

The manual lists three different sealants for access panels.

CS-3330-B

PR1403-G-B2

PR1428-B

You will find one of them.

Well, not my 1967 SM. :)

I do have somewhere newer manuals that this info is coming from but not on work computer. Thank you

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Just now, N201MKTurbo said:

That was from a J manual. Same wing, same tank, I doubt anyone would give you any grief for it.

I understand, that was my next search when I get a hold of my personal computer.

2 minutes ago, N201MKTurbo said:

I have found the best place to get sealant is through Boeing. Find a repair shop with a parts department and have them order it for you. It is usually faster and cheaper than ordering on line.

By Boeing you mean Avial? :)

I HATE when they call "heritage company McDonnel" and such and rebrand or claim they invented everything. They would call a DC-3 Boeing! :angry:

Your Google people must be better than my google people. I got 5 pages, all right but no sale prices, only a few RFQ. Cheers

 

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1 minute ago, Igor_U said:

I understand, that was my next search when I get a hold of my personal computer.

By Boeing you mean Avial? :)

I HATE when they call "heritage company McDonnel" and such and rebrand or claim they invented everything. They would call a DC-3 Boeing! :angry:

Your Google people must be better than my google people. I got 5 pages, all right but no sale prices, only a few RFQ. Cheers

 

Yes, I liked Aviall better, but its Boeing now weather we like it or not.

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1 hour ago, Igor_U said:

Mooney service manual recommends PR1403-G-B2 for sealing removable access panels in the tank. I read it is discontinued in North America. 

What do you typically use as a replacement?

 

ChemSeal CS-3204 https://www.aircraftspruce.com/catalog/pnpages/09-38500.php

ChemSeal CS-3330 https://pilotshq.com/products/chemseal-cs3330-low-adhesion-access-door-sealant-6-oz-cs3330b2kit

The first one goes inside the tank, and the second (low adhesion) is used on the access covers.

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I haven’t got to the materials part yet. Busy with other airplanes. I will post the information as soon as I get to it. Now, here are some pictures of what using the wrong hardware ( too long ) to your access panels. can do, creating more leaks in the process.  That’s also PolyGone at work on the access panels with original sealant. 

0D42A2B2-F98D-4115-A946-C43C09A10AD8.jpeg

0CA66232-8480-4592-8815-3377ED6685F8.jpeg

DE812B64-E2AC-4E51-B98E-A89DAE9890CF.jpeg

6896EB63-289F-47AB-A384-7EA586935540.jpeg

63180608-07A2-4AFB-9B88-A848C39179AA.jpeg

6E91A892-69C8-4FF0-95EB-E6CAC5757AB2.jpeg

890574CC-8F69-4DA1-AF4C-9015E3FF3DBF.jpeg

C0B39D16-C783-4356-AA89-E07603B86D97.jpeg

EFD363D2-620C-43EA-9F86-6860A31593F5.jpeg

BBD8F2C0-6FDF-474E-82EA-63DD6900DFEA.jpeg

A628359E-6D7D-4A45-9351-BC0C9C829E11.jpeg

5FBF6B33-9D78-431D-BE78-B21136D48476.jpeg

3F64CE11-4B04-443E-8571-1754B9290C84.jpeg

E0052A1F-AA18-4FE3-8D3A-F2C06C8911BF.jpeg

BDEF3E94-BDA1-484C-A170-27FCE9355018.jpeg

38297B28-BF86-45B5-9045-64CF39EEEF62.jpeg

F0F7F35A-E5A7-418E-9324-124556B28D13.jpeg

2C3BD51B-0137-432E-8DEA-ACCAE9D75F3D.jpeg

37A0E136-EEE7-4E5A-BA8D-652C5C9FAE90.jpeg

E0AC5D7F-63ED-4710-95D6-7991302E9A98.jpeg

Edited by rrodriguzzi1
Word correction
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