[DML] Re: Plastic vs. Metal Radiators: Not much difference.
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[DML] Re: Plastic vs. Metal Radiators: Not much difference.

You have it all wrong. There is nothing inherently wrong with the
origional radiator with the plastic tanks. I only mention it is
plastic because if the one in your car IS the one with plastic tanks
it is probably the origional and is over 25 years old. If it has metal
tanks we have to assume the radiator was changed at some point in the
past. The plastic tanks were crimped on. The most common failure mode
of the radiator with the plastic tanks is corrosion building up
between the tank (the one on the left where the hottest coolant
enters) and the core. It loosens the crimp and it starts to leak. My
point is ANY radiator, metal tanked or plastic, is not meant to last
25 YEARS! As for those of you "slamming" into "immovable objects" Try
stopping a little sooner!
David Teitelbaum
vin 10757

--- In dmcnews@xxxxxxxxxxxxxxx, Martin Gutkowski <martin@...> wrote:
> The assumption is that metal side tanks are welded or braised to the 
> radiator core whereas plastic ones are bonded.
> Martin
> therealdmcvegas wrote:
> > Plastic most likely has NOTHING AT ALL to do with the tanks leaking...
> >
> > I've got an all metal 3-core radiator, and the thing leaks on the
> > seams where the metal tanks are. The reason? I keep slamming the
> > radiator bolts on the bottom into concrete plyons/stops/curbs in
> > parking spaces. This causes the radiator to flex. Yes, if the plastic
> > tanks were installed, i probably would have seen the tanks crack first
> > before the seams went, as is the case with the metal ones.
> >
> > So plastic vs. metal? No difference assuming you don't keep scraping
> > your radiator on concrete.
> >
> > -Robert
> > vin 6585 "X"

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