NEED TO REPLACE FUEL TANKS IN 1973 NORDIC JET BOAT. ANY TIPS OR TRICKS TO DO SO WOULD BE APPRECIATED.

NEED TO REPLACE FUEL TANKS IN 1973 NORDIC JET BOAT. ANY TIPS OR TRICKS TO DO SO WOULD BE APPRECIATED.

I've seen this go easy or be a real pain!  Both of my Hallett's required tank replacements and I used air cut off on the first and an electric cut off on the second.  Both made an itchy mess but went quick, just wear long sleeves and a dust mask(respirator would be best).  In some cases I have heard of a sawzall doing the trick and even what Bunger used above.  Either way it's not that difficult but it most likely will get messy.

Empty the tanks as much as possible then cut away any fiberglass tabbing that is holding the tanks in place.  Be carefull not to dig too deep into the hull with the cutting wheel/blade or you will be making more work for yourself patching back.  A ventilated space is preferred when performing this task.

Post pics of the tanks in question so we can see what you're working with.  Do you have replacements already?

oscilating saw like the one pictured above, cut the tabbing.  wheels and things that spin make dust.  vibrating saws dont.  once the tabbing is cut, the fuel fill removed, the sender wire and ground for the tank level sender, and the fuel hose the tank should be able to be pulled out.  but dont throw it away just yet.  take it down to  IMCO and have a set of replacements made that match the dimensions of the ones removed.  install them into the same location using the same tabbing method.  that way the fuel fill locations, sender, etc are all in the same exact place.