pistolpete 4 Posted August 20, 2018 Looking for a bit of advise. I have a 302 Windsor in a Cortina. I bought it as is, looked to be rebuilt recently. I have replaced the water pump, thermostat and housing, running a 3 core radiator and the thing runs at about 200F. The radiator is brand new and not blocked, there are 2 x 8 inch fans pushing air from in front of the rad. Any ideas why it's running so hot? I would have thought something like this would run around 180? Share this post Link to post Share on other sites
deankxf 20,231 Posted August 20, 2018 is 200 HOT? seems acceptable depending on how it goes in summer. someone else will probably know, but it's below boiling without a cap is all i know 1 Valvebouncer reacted to this Share this post Link to post Share on other sites
bear351c 10,260 Posted August 20, 2018 Igniton timing OK ? Plug heat range ? Belt slipping ? Rad hose collapsing ? Wrong themostat ? Share this post Link to post Share on other sites
CHESTNUTXE 7,259 Posted August 20, 2018 shouldnt the fans be behind the rad ? Share this post Link to post Share on other sites
deankxf 20,231 Posted August 20, 2018 might be better with one big fan than 2x 8".. Share this post Link to post Share on other sites
pistolpete 4 Posted August 20, 2018 On 20 August 2018 at 3:57 PM, bear351c said: Igniton timing OK ? Plug heat range ? Belt slipping ? Rad hose collapsing ? Wrong themostat ? Timing has been checked not sure about the plugs, will check them belt is fine, radiator hose is good and the thermostat is a 71 degree 20 hours ago, CHESTNUTXE said: shouldnt the fans be behind the rad ? There's no room behing the radiator for any kind of fan 16 hours ago, deankdx said: might be better with one big fan than 2x 8".. Thats my next thing to try 2 deankxf and bear351c reacted to this Share this post Link to post Share on other sites
Valvebouncer 2,389 Posted August 20, 2018 It’s not way hot but I get why you worry. Have you checked with a tissue that the fans are wired up and blowing the right way? Just feeling isn’t good enough. Other than that is sounds like you have checked all the basics so it’s onto the engine rebuild. How much was it over bored? Did they put head stud sealant on the outer head bolts? If not it may have a blow head gasket. If they put the head gaskets on backwards the overheating will be instant and uncontrollable. I’d check the water pump too as Thom said. You may have to remove it to check this. Share this post Link to post Share on other sites
deankxf 20,231 Posted August 20, 2018 tissue test is handy, i made a video of mine to show a mate.. 1 Valvebouncer reacted to this Share this post Link to post Share on other sites
bear351c 10,260 Posted August 21, 2018 Got engine details.? When was it built, how long has she been overheating, was it rebored, head gasket maybe, harmonic balancer slipped, thermostat faulty out the box. ?? Hard to diagnose over the 'net. 1 Valvebouncer reacted to this Share this post Link to post Share on other sites