Engine runs hot after radiator and themostat replacement
 

For my 94 Integra gsr:

I notice my engine is running hotter than usual after replacing my radiator and themostat. I replaced my radiator with a aftermarket OEM style replacement and a 180 degree thermostat. Before replacing them, the most the guage will go up to will be about 1/3 on the temperature guage. Now it's like 2 dots before the middle...WTF happen? I observe my radiator fan and they are coming on.

Re: Engine runs hot after radiator and themostat replacement (mickey513)
 

Did you bleed the system?

Re: Engine runs hot after radiator and themostat replacement (newgsrdriver)
 

Check for bubbles... You may have an air pocket...

Re: Engine runs hot after radiator and themostat replacement (newgsrdriver)
 

From what it sounds like the temp is at what it's supposed to be.
My temp gauge always stayed at 1/3 up until I replaced the thermostat.
Now it sits just before the 1/2 line. Accornding to my owner's manual
the needle should be just under the 1/2 way mark.

same thing happen to me
use to be 1/3 now its freaking 2 dots before mid...
i think i have bubbles but dunno how to take em out GRR!

Re: (importdude2000)
 

I have that problem, when I first had my engine put in, it was a little below middle (where it should be) but now it barely gets two dots..

The culprit? A bad thermostat. My thermostat was stuck open, a quick replacement and it is back to normal.

Re: (importdude2000)
 

If you have bubbles, then you need to bleed the system, in order to do this, you need to take a 12 mm box wrench, and put it on the bleeder screw located, where the radiator hose, comes to the front of the head (b18a) crack the screw open, let some coolant come out, tighten it back down....DONE

Re: (sleepin91teg)
 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sleepin91teg &raquo;</TD></TR><TR><TD CLASS="quote">If you have bubbles, then you need to bleed the system, in order to do this, you need to take a 12 mm box wrench, and put it on the bleeder screw located, where the radiator hose, comes to the front of the head (b18a) crack the screw open, let some coolant come out, tighten it back down....DONE</TD></TR></TABLE>

There must be another way becuase only the 94/95 Integra gsr had the bleeder screw. The newer models didn't. I did it this way once and mange to crack the water outlet housing putting the screw back on. Went to buy a new one and they didn't have the screw anymore on them, it was sealed up now.

Re: (mickey513)
 

just take the radiator cap off and run the engine for 15-20 min. then refill and replace the cap.

Re: (andrewM)
 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by andrewM &raquo;</TD></TR><TR><TD CLASS="quote">just take the radiator cap off and run the engine for 15-20 min. then refill and replace the cap.</TD></TR></TABLE>

listen to this guy https://honda-tech.com/forums/images/smilies/emthup.gif https://honda-tech.com/forums/images/smilies/emthup.gif , i'd check for leaks around your rad cap also, you can take out the tube going into the over fill and blow in it and look around the cap and make sure nothing is leaking from there, if it's leaking you'll see it spit out around the cap. mine just cracked on me today and i have to get it replaced.