CRG Discussion Forum
Camaro Research Group Discussion => Maintenance => Topic started by: bc69 on June 08, 2015, 01:25:48 AM
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Anybody have a suggestion on replacement fan clutch for
A 69 L48 with A/C? Mine is starting to run hot when on highway for a steady run.
Has a little bit of a tendency act a little similar without air if it's for a extended time.
Just not quite as bad.
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<< Mine is starting to run hot when on highway for a steady run. >>
If it's heating up at highway speed, it has nothing to do with your fan or fan clutch - neither of them have any effect at road speeds. You have other issues, most likely radiator-related.
Define "run hot" - have you checked coolant temp with an I.R. gun on the radiator inlet hose just above the thermostat housing vs. the temp gauge so you know what the gauge is really telling you? Does it puke coolant out of the radiator overflow hose?
You might read this article on classic cooling systems - I wrote it for 60's Corvettes, but the principles are the same:
http://www.lbfun.com/warehouse/tech_info/cooling%20system/cooling.pdf
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And don't forget to check out the fan belt tightness. A simple, overlooked easy check / fix item.
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John,
We put your article on site - http://www.camaros.org/pdf/corv_cooling2.pdf
More of John's articles:
http://www.camaros.org/articles.shtml