Thought this might be of general interest, so I am posting separately a comment I made on one of Crowhorse's threads about overheating.
About "rodding the radiator"... (radiator rebuilding)
This refers to part of the radiator cleaning process...
First the radiator is placed in a tank of mild acid (sorta like CLR) that causes the lime deposits in the radiator to break loose.
Then the radior's top is removed (it is soldered on) and a cleaning brush on a long thin rod (or maybe just a long thin rod) is carefully poked down each of the vertical passages to completely dislodge any stubborn buildup.
Then the radiator is flushed to remove all loose material from the rodding. A further acid dip might occur... I dunno.
When the radiator is thoroughly cleaned, the top is resoldered on and the unit is repainted.
Time: 1-2 days
Cost: $65 in Independence, MO
BTW, whe I had this done, the guy at the shop's first question was "Is this a plastic radiator?"
I guess newer vehicles have plastic components (how magical!) in their radiators that require other methods for cleaning. As far as I know, this is not the case for the older Samurai/Sidekick/Tracker family. I don't know about the newer body style Tracker/Sidekicks...
'Ol Yellow Wheels before...