- Nov 25, 2003
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Hello. I am having an overheating problem with my 65 coupe and was looking for some advice. I just replaced the engine with a rebuilt 289 and was using all my old engine parts such as intake, carb and radiator. Well my carburetor which was a 4160 holley single feed was not working correctly (never had) so I replaced it with a new Speed Demon 575 cfm. Got it inspected at my local shop, he got the new carburetor on and running, and fixed a vacuum leak which drained my checking account of what I had. I am 17 and dont have much money left to bring it back there :/ . With all this done I had only driven it home which takes about 5 minutes. I did not notice it overheating while driving. Next day I had it running and idling in my driveway when it boiled over and shot coolant out the radiator. It also would not idle unless I was giving it gas until it warmed up a little. It would not like to move from idle either when slowly letting out the clutch it would only move when I kept it revving at about 1500 rpms. I read online that too lean idle mixture would do this, so I adjusted that a little with the four idle mixture screws on the carb. Now it lets me engage the clutch and move just fine, it also seems to be idling a little better, but im not sure as it was already warmed up. During the engine swap I kept the old radiator and painted it and kept my old 4 blade fan. The fan is real close to the radiator with the spacer so that seems ok. Im thinking now I'll probably need a new fan and a carburetor tuning by a professional. I was thinking either an electrical fan or more blades with a shroud. I want to drive it so bad but im afraid to. Is it my old crappy fan or radiator?
Sorry for the long post and thanks to anyone who reads this and replies .
Sorry for the long post and thanks to anyone who reads this and replies .