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ALUMINUM RADIATOR?
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CarGuru > General Motors > ALUMINUM RADIATOR? 9 May 2005 03:05:53

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ALUMINUM RADIATOR?

Wendy & John 7 May 2005 22:04:35
 ALUMINUM RADIATOR? 1992 Buick Roadmaster 350 TBI

My radiator leaks where the outlet tank meets the core.
Stop-leak is holding it while I look for a replacement.

An exact replacement; brass/copper, 3-row, with trans
fluid cooler/temp sender port/engine oil cooler is $280.

Parts dealers want to sell me a different radiator for $170.
It has plastic tanks and an aluminum-fin core. It looks
flimsy to me; the core is only a little over 1-inch thick,
the fins collapse if you touch them and the core looks
like it is attached to the tanks by crimping and gluing.

Does anyone have an opinion about the sturdiness of
plastic/aluminum radiators or any experience with the
ability of the plastic tanks to withstand heat, cold,
vibration, automotive chemicals, installation stresses,
and hose/fitting attachment torque?

All opinions are welcome.

Wendy & John
___________________­____________________­______



Add comment
Paul 7 May 2005 22:59:40 permanent link ]
 Wendy & John wrote:>
ALUMINUM RADIATOR? 1992 Buick Roadmaster 350 TBI>
My radiator leaks where the outlet tank meets the core.> Stop-leak is holding it while I look for a replacement.>
An exact replacement; brass/copper, 3-row, with trans> fluid cooler/temp sender port/engine oil cooler is $280.>
Parts dealers want to sell me a different radiator for $170.> It has plastic tanks and an aluminum-fin core. It looks> flimsy to me; the core is only a little over 1-inch thick,> the fins collapse if you touch them and the core looks> like it is attached to the tanks by crimping and gluing.>
Does anyone have an opinion about the sturdiness of> plastic/aluminum radiators or any experience with the> ability of the plastic tanks to withstand heat, cold,> vibration, automotive chemicals, installation stresses,> and hose/fitting attachment torque?>
All opinions are welcome.>
Wendy & John> ___________________­____________________­______

Most vehicles now-a-days have Al core rads with platic tanks.
I have had three so far in my 1992 Grand Am. OEM rotted out in 96,
#2 broke the bottom plastic pipe off of the plastic tank in 99,
#3 I got a socket wrench wedged in between the core and the
engine in 2003 - the wrench holed a core (please don't ask).
Overall, they seem to be good for at least 8-10 years if you keep
the Al anti-corrosion stuff in good shape.
Add comment
Bret Chase 8 May 2005 01:26:58 permanent link ]
 On Sat, 07 May 2005 18:04:35 GMT, "Wendy & John"
<ardanswj@kilobar.n­et> wrote:
:|­ALUMINUM RADIATOR? 1992 Buick Roadmaster 350 TBI>:|>:|My radiator leaks where the outlet tank meets the core.>:|Stop-leak is holding it while I look for a replacement.>:|>:|A­n exact replacement; brass/copper, 3-row, with trans>:|fluid cooler/temp sender port/engine oil cooler is $280.>:|>:|Parts dealers want to sell me a different radiator for $170.>:|It has plastic tanks and an aluminum-fin core. It looks>:|flimsy to me; the core is only a little over 1-inch thick,>:|the fins collapse if you touch them and the core looks>:|like it is attached to the tanks by crimping and gluing.>:|>:|Does anyone have an opinion about the sturdiness of>:|plastic/alumin­um radiators or any experience with the>:|ability of the plastic tanks to withstand heat, cold,>:|vibration, automotive chemicals, installation stresses,>:|and hose/fitting attachment torque?>:|>:|All opinions are welcome.>:|>:|Wendy­ & John>:|____________­____________________­_____________>:|>:|
the AL/plastic tanks have been in GM trucks since at least 88. I
just recently replaced the one in my '88 K2500. it was leaking at the
tank/core seam. if your current radiator is copper/brass (which I
find suprising... C/B is less efficient than an AL radiator) why don't
you take it to a radiator shop and have it re-soldered? the
AL/plastic ones can't be fixed (or perhaps more accurately, nobody
WILL fix them).

typically the al/ plastic ones will go for about 10 years before
needed replacement, mine may have been the original.

hth,
Bret

Add comment
Wendy & John 8 May 2005 03:01:22 permanent link ]
 Most vehicles now-a-days have Al core rads with plastic tanks.
.... Overall, they seem to be good for at least 8-10 years if you
keep the Al anti-corrosion stuff in good shape. Paul
___________________­____________________­____________

Al/plastic tanks have been in GM trucks since at least 88. If
your radiator is copper/brass (which is less efficient than an Al
radiator) you can have it re-soldered at a radiator shop. The
Al/plastic ones can't be fixed.... typically the Al/ plastic ones
will go for about 10 years before needing replacement. Bret
___________________­____________________­_____________

All my cars were old cars. I had no idea that aluminum radiators
were so widely used. I have been reading horror stories about
plastic intake plenum failures and I thought plastic radiator tanks
might be problem sources too.

Okay, I will take my brass radiator to a repair shop first. If it
is unrepairable (or will cost too much) I will not be afraid to buy
an aluminum radiator, because you answered my concerns well.

Thank you so much for your responses.

Wendy & John
___________________­____________________­_____________








Add comment
Harry Face 8 May 2005 03:16:29 permanent link ]
 My original Plastic / Aluminum radiator in my Bonneville lasted from Feb
91 to Feb 04. The replacement SPI ( from Chevy ) lasted 11 months. # 3
replacement ( SPI ) leaked after two weeks then stopped by it self.

Harryface
05 Park Avenue
91 Bonneville LE, 303,149 miles









Add comment
Wendy & John 8 May 2005 03:56:23 permanent link ]
 "Harry Face" wrote:

My original Plastic / Aluminum radiator in my Bonneville lasted from Feb
91 to Feb 04. The replacement SPI ( from Chevy ) lasted 11 months. # 3
replacement ( SPI ) leaked after two weeks then stopped by it self.
===================­====================­============

Thanks for the input, Harry. I have been saved from automotive
disaster more than once by the generous alt.autos.gm posters who
take the time to help.

Wendy & John










Add comment
Dennis Smith 8 May 2005 09:21:00 permanent link ]
 In article <Tq7fe.5164$hh6.102­8@trnddc01>, ardanswj@kilobar.ne­t says...>
ALUMINUM RADIATOR? 1992 Buick Roadmaster 350 TBI>

The aluminum/plastic tank radiator in my '84 T/A has no leaks after 21
years and 124,000 miles.

The radiator in my friends '93 Chebbie truck started leaking at the
O-ringed side tank at 190,000 miles.

If you change the antifreeze every 24,000 miles/2-3 years you shouldn't
have any problems.


--
___________________­____________________­____________________­______
Dennis Smith

-1971 Trans Am - 455 H.O. - M21 4speed - Cameo white/blue stripe-
-1973 Trans Am - 455 - TH400 auto - Buccaneer red-
-1984 Trans Am - 5.0 L - TH700R4 auto - Royal blue/silver aero-
___________________­____________________­____________________­______

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451ctds 9 May 2005 03:05:53 permanent link ]
 Wendy & John wrote:> ALUMINUM RADIATOR? 1992 Buick Roadmaster 350 TBI>
My radiator leaks where the outlet tank meets the core.> snip >Does anyone have an opinion about the sturdiness of> plastic/aluminum radiators or any experience with the> ability of the plastic tanks to withstand heat, cold,> vibration, automotive chemicals, installation stresses,> and hose/fitting attachment torque?>
snip

If you drive rough roads, temps that go from 0 to 100
and plan on keeping the car, I'd go with the brass, tanks and all,
aftermarket. The Aluminum radiators are OK, but the concept of plastic
tanks scares me, be the core Al or Brass.
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CarGuru > General Motors > ALUMINUM RADIATOR? 9 May 2005 03:05:53

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