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Bertram31.com General Bulletin Board
Re: Stainless vs. Aluminum
Posted By: Vic Roy In Response To: Re: Stainless vs. Aluminum (bruce)
Date: Monday, 6 March 2006, at 8:58 p.m.
I've been pretty quiet on the gin in the fuel issue since I don't have a dog in the fight, being diesel, at least not yet.
I would like to urge a word of caution here before everyone spends the money to pull out very well made fiberglass tanks. I have read the "tests", some by presumbably qualified people, but I worry that the gin is really just dissolving the varnish from the gas that's been in the bottom (and sides) of the gas tank for 30 or 40 years, and depositing it on the valve guides, gumming them up and causing push rods and valves to fail.
I had an experience some 35 years ago with some bad (very old) gas in an aux. tank on a 45' Hickcock with twin Chrysler straight 8 Army tank engines and a very new (at the time) 4 cyl. gen set. I switched to the bad gas, ran about 8 hours, all was well, then shut her down for the night. Next morning the mains started right up, the genset would not. Turned out the bad gas (varnish, remember the varnish in the gas) had gummed up the valve guides on the new genset but not the mains which probably had many 1000th play in them.
Again, I wonder if the problems are the gin cutting the varnish in the tank and letting it coat the valve guides. I just don't buy 10% gin in the gas dissolving the tanks that quick after all these years.
What ya'll think?
UV
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