how to remove fuel tank on 1990 Oldsmobile royale 88
REMOVE OR DISCONNECT All fuel in the tank. Sender assembly wire, tank filler and vent hoses. Fuel pipe connectors. Support fuel tank and disconnect the two fuel tank retaining straps. Lower exhaust at rear hanger. Tank from vehicle. Sender assembly. INSTALL OR CONNECT Sender assembly. Always replace O-ring when tank unit has been removed. Fuel tank to vehicle. Connect the two fuel tank retaining straps. Raise exhaust into installed position. Fuel pipe connectors. Sender assembly wire, tank filler and vent hoses. Refill tank with suitable fuel, start engine and check for any fuel leakage.
This a copy of a repair book, but I do think that the best route to take before trying to get the fuel lines off an filler hose off tank end first is to go ahead and lower the exhaust and tank straps first, may also have a protector on the tank that has to come off in-order to remove the 2 metal straps
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