Tools I used: 9/16 socket on 3/8 ratchet with a 6in ext. Tools to loosen hose clamps.
Extraction: Drain rad. down by about 2 gallons (I loosened the bottom hose*) Engine side....Rem. the top end only of the hose from bottom of rad. to tank*. Rem. the coolant level wires. Rem. the top of the top rad hose. Rem. the small hose at the tank end. Rem. 2 3/8in. bolts from the tank holder frame. (Hard to see)
Under the front access cover...Remove the rad. end of small hose that connects the tank to the rad. top. Rem. 3- 3/8in. bolts holding the forward tank holder frame.
Back to eng. side, fold the upper rad. hose over (or rem. from engine) and carefully pull out the tank and frame assy.
I could NOT see the leak when the tank was cool and empty so I heat welded the tank all around the suspect area. I used an inexpensive plastic welder that uses only heat...Like a soldering gun with a wide, flat tip. I have a lot of experience with this little welder, it can do a good job if you take your time and follow inst.
Very similar to this:
I just ran the welder over the area, 1/2 lapping the previous pass until I covered all I thought I needed to, using no filler. So far it's holding