Fuel Tank Repair

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xprsav8r
Posts: 22
Joined: Mon May 08, 2017 5:23 pm

Fuel Tank Repair

Post by xprsav8r »

Good evening folks.

Can anyone offer some guidance for repairing leaks in an S90 tank? Specifically, my aux tanks seem to leak around the sumps even after replacing. I didn't build the plane and unfortunately, there are no manuals and access ports for the tanks. Any advice is appreciated.
jchisolm
Posts: 97
Joined: Tue Jun 17, 2014 9:56 pm

Re: Fuel Tank Repair

Post by jchisolm »

Is this a solid plug or is it like a SAF-AIR drain valve? If it's a drain valve it's probably just a o-ring issue. I think you can get a re-build kit for them or you might have to replace it. I'm not sure what size it might be.
If the leak is around a solid plug you might try some fuel lube on the plug.
If it's leaking around the AL block that's bonded in the tank that's a bigger issue. Fixable but more work.
Joe Chisolm
Express CT builder
Marble Falls, Texas
xprsav8r
Posts: 22
Joined: Mon May 08, 2017 5:23 pm

Re: Fuel Tank Repair

Post by xprsav8r »

Thanks Joe. We replaced the quick drain valve. All fixed.
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