1990 Osprey 20' fuel tank

[Saint P]

I repowered last season with a 115 mercury 4 stroke.  After about 15 hours I had serious fuel problems.  The boat still has the original 55 gal aluminum gas tank, the problem with the motor seemed to be clogged injectors.  They had a white powdery substance plugged up in them.  

The shop recommended replacing the fuel tank.  I thought they only had problems with fiberglass ones.  

Has anyone replaced their 55 gal belly tank before?  If so, what can I expect?

Thanks

[LilRichard]

How old is the tank?

Aluminum tanks can have issues too...

[Saint P]

It's a 1990

[Capt. Bob]

I replaced the aluminum tank on my 84 in 97. It suffered from the same syndrome they all eventually get; strap corrosion. That's 13 years old.
You may be due.

[jdupree]

When I bought my 1988 170 I did not know at the time, but when I filled her up I found out my tank was bad.  As stated, 99.9% of the corrosion comes from under the straps.  At the minimum, I would pull the tank and inspect it.