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944 addict
 
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Join Date: Sep 2010
Location: Orlando area
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Chinese radiators

Can aluminum radiators built in China be trusted? I may need to replace mine. Symptoms: coolant temps look normal at idle but get really hot when accelerating in stop and go traffic. Restricted radiator?
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3 944's, 2 Boxsters and one Caman S, and now one 951 turbo. Really miss the Cayman.

Some people try to turn back their "odometers." Not me. I want people to know 'why' I look this way. I've traveled a long way and some of the roads weren't paved.
Old 09-28-2018, 06:02 AM
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Join Date: Jul 2011
Location: SE Michigan
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did you check thermostat? I ran oe radiator without any overheating issue.

I have chinese radiator (Champion) on my other car that crack on the stem every couple years. That said they provide good enough warrenty. However I have to put in the work to replace it every couple years.
Old 09-28-2018, 12:00 PM
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Join Date: Oct 2013
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I am having the same problem as far as heating issues. Turned out to be my cooling fans not functioning properly. New fans on the way in a few days. In regards to the "Chinese radiators", I have a Champion radiator in my 1971 240Z/LS1. I have around 5,000 miles on the car without any issues at all. With that being said, the welds and not "pretty" by any means, yet it is functional!
Old 09-28-2018, 12:23 PM
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944 addict
 
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Fans are working properly, A/C just upgraded to R134A and tech said all fans and controls are working as they should. On the drive home though, stop and go traffic and 94 degrees out, the car would indicate normal temps until I increased power to accelerate and then the temp would indicate up to the second line. The shop suggested a glogged radiator restricting the higher coolant flow at higher rpm's which kinda made sense. I may swap out the radiator if I can't find any other answer. I still have a few glitches on this car to fix so It'll be a process.
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3 944's, 2 Boxsters and one Caman S, and now one 951 turbo. Really miss the Cayman.

Some people try to turn back their "odometers." Not me. I want people to know 'why' I look this way. I've traveled a long way and some of the roads weren't paved.
Old 09-29-2018, 08:15 AM
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curtisr
 
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Join Date: Dec 2011
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Be certain that it will fit. Often the ones offered on eBay are for the turbo even though it's advertised as 944 NA.
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1977 924 Guards Red (parted and sold)
1987 924s Alpine White (sold)
1987 924s Kopenhagen Blue (my Lowencash tribute track car)
1987 924s Garnet Red
1982 928 Silver (sold)
Old 09-30-2018, 03:25 PM
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[On the drive home though, stop and go traffic and 94 degrees out, the car would indicate normal temps until I increased power to accelerate and then the temp would indicate up to the second line.}

Air in the system can also cause a spike in the temp gauge as you described. Not sure what year your car is, regardless, these cars can be a real pain when it comes to bleeding the cooling system. Just something else to consider prior to a new radiator purchase
Old 10-01-2018, 08:42 PM
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Diving in 911
 
Join Date: Apr 2014
Location: WA & AZ
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Find a place near you that will clean it. Not just a flush. they are getting tougher to find these days though. Ask a hotrod guy in your area, he'll know who to take it to. I had one done on my 86 951 and the temp dropped considerably. And about 20 years of crap came out of it. About to do it on my 87 951....

+1 on the bleeding idea as well. A good lump of air will do the same thing.
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1976 911s Special Edition Turbo bodied IROC tribute
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Old 10-03-2018, 09:55 PM
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