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Old 01-18-2012, 05:24 PM   #5
Fighterpilot
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Join Date: Apr 2011
Posts: 380
RE: fuel tank removal/replacement

Continuing to ponder fuel tank replacement. 125 gal, on Californian 34LRC. Initial suggestons were cut the tank up to get out and go in with multiple smaller tanks that can get thru engine room hatch. At one time we decided we could cut the cockpit deck and go that way with just one tank. Recently looked at going thru the engine room hatch. Can get a 20x20x58 with out removing engine risers or decking. Original 22x17x77 so give up some fuel. Don't think we could get big tank back in even by cutting the cockpit deck aft of the sliding door bulkhead based upon my mock up tank and the engine room hatches. Than considered how does one work the exhaust system running down that side? Now back to multiple tanks, but just two so only one interconnect. Some one suggested leaving the old tank in place to use as a frame work for the new tanks. In that case does one strap the new tanks in place? How much of the old tank do you leave. 2-3 inches up from the deck all away around?

Existing tank has four lag bolts on the outboard side. Tank was apparently installed before the deck over it. Maybe can get to them by coming aft along side the engine, over the batteries but getting ones self out will be tough. Started taking out the lag bolts fore and aft of the tank. Finally resorted to impact wrench and than rounded two heads even using a six sided tight fitting socket. Will have to cut them. It looks as if will have to cut most of the tank out so one can get to the far side bolts and the offending two forward bolts. 4 inch screw lag bolts were screwed down into the stringers to fasten the tank flanges to the plywood platform. Nothing is easy. Any suggestions welcomed.
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