So i recently plugged the heater outlet on the head with the rocker arm plug, and blocked off the rear heater hose line deleted the heater core. I was wondering if the temps should be right under the middle mark? before the bypass it would usually sit about a quarter before the middle mark. i've completely bled the cooling system out so i no theres no air trapped. new tstat, all new hoses and clamps with oem type 2 coolant.

 

Sounds like you still have air traped somewhere,try bleeding all the hoses you can ,and look for any plugs you might have missed,good luck

 

Sounds like you still have air in system bleed all hoses you can and look for and bleeder plugs you could have missed ,be sure thermostat is open,Test drive and replete ,good luck,

 

i used this to bleed the air out of the system. the fan kicked on over about like 5 times


Bottom-line pricing on Lisle - 24680 at ToolTopia.com

 

Also just wanted to mention that the car does not over heat even when driven hard for about 30mins

 

Of course it's depending what car and meter is in question, but approx half way to scale sounds normal to me.
You mentioned new thermostat, so I assume that the old one was opened too early and that's why gauge reads lower before.

 

99 civic si cluster, 97 gsr swap, 96 honda civic hatchback.

there was nothing wrong with the thermostat i just figured it was time to change it since i was bypassing the heater core and doing misc maintenance.

so you think its right that it sits one line under middle?

 

Like this?

 

no lower than that. its where the temp needle is straight left to right and 1 line under middle.

 

its almost like this one just one line higher.

http://www.civicforums.com/forums/at...8&d=1343848311

 

Ok. In pic what I posted, gauge reads normal. It is from my own car (2000 EK4, stock cluster, B18C6), in this postion logged temp (from ecu) is ~90°C/ 194°F.

 

is that during idle? i checked my temps if i hold the idle at around 4k-5k its around 205° but just idling its around 180-190ish

 

Typically yes, somewhere around that. Mostly depending circumstances. 96°C/205°F isn't unforeseen either (warm day, hard driving, dyno etc. )