Fuel paranoia or concern????

[Desertdoc75]

47 minutes ago, carusoam said:

Are the blue stains The after picture?

Short study of fuel sealants or the procedure may be in order?

Best regards,

-a-

I'm not totally sure, but I don't recall them being stained after return from overhaul. 

 

[Desertdoc75]

29 minutes ago, M20Doc said:

You might want to install some Parker 600-001-10 Stat O Seals under the screws.

Clarence

Thanks, I'll look at getting a few. 

 

[jetdriven]

 Those look like rubber gaskets but if I recall correctly what's ive seen there have been cork. Rubber gaskets doesn't always work when you have thin aluminum underneath of it with screws spaced out. It's too dense and the aluminum distorts and it leaks between the screws. I've never gone wrong with Permatex aviation sealer over a cork gasket and then screwed down.

[Marauder]

Having a recent love affair with my senders, I can confirm that the original gaskets were indeed cork. They also had plastic inserts in the screw holes. This may be due the bladder installation



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[ArtVandelay]

So as mentioned in my other thread, I finally got Moonship out of annual. Corrosion issues addressed, JPI 700 installed, and the fuel leak addressed.
It turned out to be the fuel sender unit. Had both sent off for overhaul, got them back looking like new!

Where did you send them to be overhauled?

[DonMuncy]

14 minutes ago, Marauder said:

 They also had plastic inserts in the screw holes. This may be due the bladder installation

 

The plastic inserts are to keep the attaching screws from grounding the sender to the tank. The wire to the sender "continues" on to the outer sending unit, where that sending unit is grounded to the tank. This allows the gauge sense the "average" of the two sending units for the gauge reading.