Fuel Tank 337G

[Gord Tessier]

I had a fuel leak in my 73 G model. It turned out to be nothing more then the gasket in the fuel cap. With the tanks full, I could see with a bright light the fuel migrating or weeping out around the filler cap and then down the wing root. Cheap fix.

[hharney]

Gord

Very common area for Cessna. Sounds like based on the diagnosis that Ed gave above he has already been there done that. The gaskets on the fuel senders are troublesome critters and if you ever install a new fuel sender or gasket remember do not remove the wires at the terminal screw that has the putty on it. You have to take the wires apart at the butt connection or the unit is void for warranty if needed. Learn the hard way.

[SkyMac]

Hi Herb

Any learnings on fitting the new gaskets, I will be replacing all mine before I close the wings. I have all the new gaskets and those little rubber washers ready to go. Mind you it will be a couple of months before I get to it.


I found two sender units leakering when I pulled the tank covers off, also I have read a few comments on leaking fuel tanks over the last couple of days. Of my 6 tanks and the two little sub tanks I will carry out in total 7 welds on very small splits / pin holes. Each repair is welded then it has another circular disc welded over that, according to the approved engineer who is conducting the repairs, this is a very common issue and he does them all to often.

Anyway I am aiming for a leak free fuel storage and supply

Regards
Dave

[Mark Hislop]

Hi Ed.

If they were able to get the inboard tank in and out without removing the outer tanks, they are a lot smarter than I am. (Not a very high bar, I'm afraid.) I couldn't figure out a way to get new hoses on without removing all of the tanks and putting them in in sequence. For actual professionals with the right tools, I don't think it would be too tough. For an amatuer like me, well...... If you want to see what the outboard tank bay looks like, feel free to stop by my hangar any time. I'm there most evenings. I'm finishing up the left wing, and then starting the right wing.

[Mark Hislop]

Thanks Herb. I didn't know that. Hopefully, Ed can find someone who is parting out a later model with the same tanks. Or get somebody to repair his tank.

[hharney]

There was a G model being parted at the Middletown, Ohio airport. The local A&P there but not sure they have tanks, it would be worth a call

[SkyMac]

The contact details for the 76 337G in Middletown are...

Kurt Yearout
Safe Skies Aviation
513-368-0282 (cell)
513-217-5141 (office)

kurtyearout@yahoo.com