motor still runing Hot!

[e30wavee]

Hey rev I just did a timing belt water pump and t stat installed a new radaitor on my m20 b25,car still seems to over heat it goes about 3/4 mark on the temp gauge, I bleed the system about ten times now, did a leak down test on the motor everything seems to look fine so the head gaskets good no coolant mixture in the oil,im just stuck on what could cause this need helpp

[paperplane94]

did you turn the heater on when you bled?

[jlevie]

Does the engine only run hot at idle? If so replace the fan clutch. If it runs hot at speed over 35mph something else is wrong. The right way to bleed the cooling system is:

1) Using ramps or a jack get the front of the car 1' or more higher than
the rear. That will make the radiator and bleed screw the highest point
on the engine and facilitate removal of air.

2) With the bleed screw open, add coolant until no more air comes out of
the bleed.

3) Leave the filler cap off, or at least loose, and set the heat for max
temp and fan speed. Leaving the cap loose will prevent air that's still
in the system from causing a "coolant fountain" once the engine heats
up. Start the engine and allow it to warm up to operating temp. As it
warms up occasionally crack the bleed screw to release any air and top
up the coolant as necessary.

4) Once the engine is at temp bring it up to 2000-2500rpm for a few seconds
several times. Then crack the bleed until no more air is released. At
this point the heater should be throwing lots of hot air, which
indicates that the heater core is filled with coolant. You may have to
repeat this a few times to get all the air out.

5) Drive the car a bit, allow it to cool back down, and recheck the
bleed for air. Over the next few days you may get very small amounts (a
few bubbles) of air out of the bleed screw.

[The Bimm]

fan clutch

[ms_julesy]

did u verify thermostat is not installed backwards

[UserError]

Check to see if the grounding nuts on the back of the gauge cluster are tight as well. You could be having a false positive reading if that ground nut is loose.