Seaswirl Syndrome

[ebird99]

As much as I love my Seaswirl, I recently found out about an issue know by local mechanics as the Seaswirl Syndrome. The issue relates to water getting into the gas tank through the instrumentation penetrations on the top of the tank. My boat is a Year 1999 and as the tank gets older the top of the tank starts to bow in allowing water to puddle right at the instrumentation penetrations. It eventually corrodes the bolting and breaks the gasket seal.

The fix, remove both the level assy and the fuel line assy clean the surfaces and the bolting. (keep the dirt out of the tank, I used a paint brush) and reseal using permatex #1. Only hand tighten the bolts until the sealer sets. Don't squeeze the sealant out when tightening. good luck

ebird 99

 

[trobinson017]

Re: Seaswirl Syndrome

Thanks for this info. I've had numerous problems with water in the fuel because of this. I was told it was an issue with all poly type gas tanks, particularly if you let them get low on fuel. The heat during the day makes them "collapse", so to speak, breaking the seal of the interfaces. I used a silicon goop and heavily covered all interfaces where they contact the tank. No problems since then.