Miata radiator

Actually, your post did go through,but I am going to answer on this one. My radiator did not move at all. I recently had to replace it due to leak. I replaced it with a metal one. To move doesn't sound right to me. Anyone else? ~Cissy My '90 Mazda Miata I love PC adventure games

The radiator in my '90 (and, I assume, others) is mounted with rubber bushings. I really don't know the design rationale behind the bushings. It's probably to attenuate shock/vibration from the frame into the radiator. One thing I do know is that the "float" should not be so great as to constitute "looseness". If so, I would assume the bushings are shot and need replacement.

I also expect that a properly mounted radiator will leak for various reasons. Like Cissy, I also replaced my original radiator with a metal one. In mine, the interface between the plastic expansion tank at the top and the metal radiator decided to leak.

Ken

The original radiator wasn't metal?

Maybe it is the newer Miatas. My 99's radiator 'floats' a lot, just like Clark's '00. I was worried at first, but I have never had a problem with it, so I stopped worrying.

Lathan

OEM radiators have aluminum cores glued to plastic top and bottom tanks. Sooner or later, the plastic and/or glue fails. When the top tank turns olive-green, it's time to start shopping for a replacement.

"All-metal" replacements are typically copper and brass, with soldered joints. There's a weight penalty of a few pounds, but they're cheap, and are invariably the automatic-transmission version, with a double core and more capacity. All-aluminum race radiators are available for about

I think mine did the same, Ken ~Cissy My '90 Mazda Miata I love PC adventure games

Not mine. Plastic :-P ~Cissy My '90 Mazda Miata I love PC adventure games

Mine developed a crack in the plastic top tank. After a year, the left side bracket on the replacement brass radiator separated from the radiator at the solder joint. It was replaced under warrantee, but I got to do the R & R!