devilmademedoit Posted July 28, 2011 Share Posted July 28, 2011 So tlast month my temp was rising to almost redline on quite a few occasions. The motor had 160k on it so I decided to do new headgaskets and waterpump. After getting into that, I decided to just rip out the motor and get a jdm motor with 47k on it. Started engine ran good took it for a ride around the neighborhood and temp gauge getting high again. I hope someone has some advice on what to do now. Is there a way to check if temp gauge or sending unit no good anymore? Link to comment Share on other sites More sharing options...
johnegg Posted July 28, 2011 Share Posted July 28, 2011 is this a 1954 chevy panel van with a flathead six? 2 possibilities: 1. air in the system, burp it. 2. clogged radiator or heater core. Link to comment Share on other sites More sharing options...
I Donated broknindarkagain Posted July 28, 2011 I Donated Share Posted July 28, 2011 I concur -broknindarkagain My Current Project - Click Here COME AND TAKE IT "The only thing necessary for the triumph of evil is for good men to do nothing." Link to comment Share on other sites More sharing options...
devilmademedoit Posted July 29, 2011 Author Share Posted July 29, 2011 OK so I tried "burping" as instructed in other threads. no good. now on to heater core, can I bypass it by looping the lines together on the intake like I did on domestic engines and troubleshoot it that way? Link to comment Share on other sites More sharing options...
johnegg Posted July 29, 2011 Share Posted July 29, 2011 did you remove the small vent plug while filling with coolant???? Link to comment Share on other sites More sharing options...
devilmademedoit Posted July 29, 2011 Author Share Posted July 29, 2011 did you remove the small vent plug while filling with coolant???? No I didnt remove vent plug. Can you just step me through it so I am doing it right Link to comment Share on other sites More sharing options...
johnegg Posted July 29, 2011 Share Posted July 29, 2011 remove rad cap. remove vent plug on the other side of the rad. fill rad with coolant SLOWLY. start car and idle until it reaches full operating temp and the cooling fans come on and wait until it settles down. (coolant will burp out of the rad.) top off coolant. top off overflow bottle. close up rad, vent plug and cap. Link to comment Share on other sites More sharing options...
I Donated broknindarkagain Posted July 29, 2011 I Donated Share Posted July 29, 2011 OK so I tried "burping" as instructed in other threads. no good. now on to heater core, can I bypass it by looping the lines together on the intake like I did on domestic engines and troubleshoot it that way? yes you can. you can do that on any car on the road. ive come across a few that run a tad warmer then normal...but not warm enough to be concerned about -broknindarkagain My Current Project - Click Here COME AND TAKE IT "The only thing necessary for the triumph of evil is for good men to do nothing." Link to comment Share on other sites More sharing options...
devilmademedoit Posted August 6, 2011 Author Share Posted August 6, 2011 Well I was on vacation so I just got back burped the system and took it for a nice ride. Its a cool day in NJ but car seemed to run great and temp gauge is sitting where it should be. I'm happy about that. Now onto building new exhaust system. Thanks for the help everyone Link to comment Share on other sites More sharing options...
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