KrazyCutlass1995 Posted July 25, 2003 Report Share Posted July 25, 2003 i was wondering if anyone here has a w-body with the 3100 which seems to run cool somedays and overheat others? the outside temp is same around 89' ... i have a oil cooler but still the damn thing overheats sometimes ... i was thinking of maybe a small 8 inch fan on the side of the motor may help a bit? any ideas , im running no t-stat at all so it has all the coolant it can pull .... i recently seen some coolant additive called 40 below http://www.speedwaymotors.com/product.ASP?wc=true&strBase_List=&hilt=&source=2192&base_no=91016003&str_base_no=54535500,60710030,91015709,91016001,91016002,91016003,&header_title=Street+Rod+Products-Additives&page_name=prod_list_display&search_type=L2~502&search_option=&deptsearch=&dept_id=L2~502&dept_id_p=&dept_name=&dept_name_p=Street+Rod+Products&ShowImages=yes&sq=0&cont=1&intPgNo=1&redirect= but i am not sure if it will work with dex cool any one else tryed this?? thanks Quote Link to comment Share on other sites More sharing options...
Redfox340 Posted July 25, 2003 Report Share Posted July 25, 2003 Funny thing is... an oil cooler won't deal with overheating. It's your actually coolant tempreture / system. Sounds like you radiator fans could not working properly (common W-Body problem). I'd look into the obvious first before dumping in foreign matter into your cooling system. What tempreture are you reaching? Always stop + go? Driving? Need more details. - Erik Quote Link to comment Share on other sites More sharing options...
KrazyCutlass1995 Posted July 25, 2003 Author Report Share Posted July 25, 2003 mostley most stop and go , it reaches up to about hmmm since my temp dont have the degress numbers , i would say about a finger nail width from the line away from HOT , so it gets pretty damn hot , both fans work fine , i did a flush about 6k miles ago , so im pretty much clueless , only other thing i can think of is that fan or maybe that coolant additive... thanks Quote Link to comment Share on other sites More sharing options...
Mike J. Posted July 25, 2003 Report Share Posted July 25, 2003 Putting a fan on the side of the motor won't do much/anything. Put the fan in front or behind your radiator but needs to be at least 12-14" dia. . Some coolant additives help some, I have used "Water Wetter" brand and noticed it cooled a little better. I don't think its a real good idea to run with no t-stat on a computer controlled engine. Put at least a 160-180 degree one. Others can probably expand on whether a t-stat is critical. Why are you running without one ? Quote Link to comment Share on other sites More sharing options...
KrazyCutlass1995 Posted July 25, 2003 Author Report Share Posted July 25, 2003 hopefully to stop this problem lol Quote Link to comment Share on other sites More sharing options...
PaPaPooh Posted July 25, 2003 Report Share Posted July 25, 2003 i have a 89 cutlass mine has 2 lines before the hot mark the second one is straight up. i live in cali so its hot here it goes to that mark and the fan kicks on but it shouldn't get that hot but it does. i have looked the radiator and bugs have smashed the loovers so i would check that first it inhibits the air from flowing efficiently just a suggestion good luck Quote Link to comment Share on other sites More sharing options...
KrazyCutlass1995 Posted July 27, 2003 Author Report Share Posted July 27, 2003 cool thanks , never even thought of that "doh" stupid me ... ran pretty good today she has her days Quote Link to comment Share on other sites More sharing options...
god910 Posted July 27, 2003 Report Share Posted July 27, 2003 If you run w/ no thermostat and no restrictor plate you WILL not be able to cool properly. The thermostat opens and closes for a reason. When it closes it uses the rad. as a heat exchanger rather than just a dissipator. It holds coolant in the rad. so the fan can act on it. If the coolant flows unrestricted through the rad. it doesn't have enough time to cool. There may be a restriction somewhere slowing down your coolant flow enough to dimish this problem, but in a good flowing system your coolant won't cool properly. Quote Link to comment Share on other sites More sharing options...
KrazyCutlass1995 Posted July 28, 2003 Author Report Share Posted July 28, 2003 what kind of t-stat would u say go with ? ... i race sometimes and live in florida ... like a 180? Quote Link to comment Share on other sites More sharing options...
god910 Posted July 28, 2003 Report Share Posted July 28, 2003 I would go as low as possible but remember you really aren't going to reap the full benefits unless you get the fans to kick on @ a lower temp. with ECM reprogramming, or a switch. Quote Link to comment Share on other sites More sharing options...
KrazyCutlass1995 Posted July 28, 2003 Author Report Share Posted July 28, 2003 i got 1 fan on ignition key and other normal (when ac comes on) so i should be pretty good ... thanks Quote Link to comment Share on other sites More sharing options...
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