I just dropped a b16 into my 92 civic about a week ago and sometimes it starts to get hot and the temp guage rises, I'll turn the car off when the guage needle is like 3/4 the way up. I thought the thermostat might be sticking, but I replaced it 2 days ago and now it tried to get hot again this morning. It was like 20 degrees if that helps. Any Ideas. Thanks

 

Is the water pump good?
Is there anyway that there is air in the cooling system?

 

new water-pump, there could be air in the radiator, is there a way to tell, and how would I get it out if there is, just add water.

 

While the car is cool you pull off the radiator cap. You start the car and let it warm up.

If the water level in the radiator drops once you get to operating temperature you fill it back to the top with water and wait to see if it drops again.

Also, next time you go for a drive pop the hood and feel the top and bottom radiator hoses. They should feel about the same.

 

sounds like you didn't bleed the coolant system.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Everyones Hero &raquo;</TD></TR><TR><TD CLASS="quote">While the car is cool you pull off the radiator cap. You start the car and let it warm up.

If the water level in the radiator drops once you get to operating temperature you fill it back to the top with water and wait to see if it drops again.

Also, next time you go for a drive pop the hood and feel the top and bottom radiator hoses. They should feel about the same.</TD></TR></TABLE>

also turn the heater and blower on full blast... let the cooling fans cycle atleast 2 times... by then you should have all excess air out of the system... the reason this happens is because the thermostat has to actually have coolant touching it to work... if there is air in the system it creates an air pocket that will center around the thermostat and keep the coolant from touching it hence the thermostat will not open when its supposed to which will cause the motor to overheat

 

thanks alot guys.

 

I bled the cooling system and all, and the car idled for a long time and I test drove it and it never did get hot. But the fan never did kick on, unless it kicked on and then off while I was driving the car, is something wrong with the fan or is that normal for cold temperatures, it was like 32 degrees.

 

sometimes it takes a looooong time for the fans to cycle... at work i usually jam a screwdriver or something to hold the throttle cable open and keep the car revved at about 2k rpm... this will help the fans cycle quicker

 

thanks again