cooling proplem with a twist HELP!!

[drkshdw107]

here's a crazy suggestion...did anyone notice that he said he didn't have a thermostat before...could you have possibly tried to put a thermostat where one doesn't belong? Where the top hose goes into the head, it looks like a thermostat housing...this is not in fact a thermostat housing....this confused me when I changed my first one too....the thermostat for our cars is on the back side of the engine, closest to the passenger side of the car...you will see a little bleeder valve on top of the housing....that is the one you need to replace....it does sound like you are having a thermostat problem, so check that out...good luck

[lokuputha]

do u have either an original water pump or a newly swapped motor with its original water pump?


if so, the problem is probably the old water pump with its vanes all broken off.

if there is no flow, the symptoms will be really weird...took me 3 weeks to diagnose it, b/c Im no mechanic....took my mechanic about 3 seconds.

this is what was left of the original rusted water pump 1yr after swapping in the motor.

Click for Engine Heating Thread

[accord2nr81]

or when installing a new Tstat it usally takes a while for it to open for its 1st time.... my experiecne anyways.... let it idel it will probally overheat and have your heat on full blast.... eventually it should open up " and yea take note that your Tstat gose on the bottom hose under the dizzy not on the front of the block... that would just make it to easy to be a honda :P

[drkshdw107]

or when installing a new Tstat it usally takes a while for it to open for its 1st time.... my experiecne anyways.... let it idel it will probally overheat and have your heat on full blast.... eventually it should open up " and yea take note that your Tstat gose on the bottom hose under the dizzy not on the front of the block... that would just make it to easy to be a honda :P

I disagree with letting your car overheat like that....if you installed your "honda" thermostat properly, and bleed the cooling system, you shouldn't overheat...if you do overheat, you did something wrong...if this is a common problem with you personally, you should test your t-stat before you install it....and make sure you are purchasing a honda part...but even with the aftermarket I haven't seen this problem.

[Otto]

Well I agree that if its fine without the t-stat, and overheating WITH the t-stat, then one could conclude it is likely the t-stat.

But going with lokuputha's thought; perhaps the water pump IS worn, and without the t-stat, its flowing just enough, but putting in the t-stat adds just enough restriction that the pump can't over come and flow get reduced to almost nothing. I wouldn't think it'd make a drastic difference (especially considering everything the coolant has to go through anyways), but I'm not THAT familiar with coolant systems.

I've noticed the fans don't come on with the A/C till some point, though I'm not sure how the system determines that point.

Can't really add anything beyond that.

[Bandoni]

do u have either an original water pump or a newly swapped motor with its original water pump?


if so, the problem is probably the old water pump with its vanes all broken off.

if there is no flow, the symptoms will be really weird...took me 3 weeks to diagnose it, b/c Im no mechanic....took my mechanic about 3 seconds.

this is what was left of the original rusted water pump 1yr after swapping in the motor.

Click for Engine Heating Thread

I believe you sir have hit the nail right on the head. I read through the thread provided and this.

symptoms:
-temp switch A (beside the thermostat) is not turning on
-upper rad hose very hot while lower rad hose is cold
-interior of car heats up
-rad fans will only turn on once ignition is off
-coolant overheats even when rad fans are hot wired and run all the time

describes my problem to a T. I have no idea how long this motor has been in this car. The guy i bought it from could barely speak english. The water that was in the radiator was very rusted and had no coolant in it what so ever only water(which as we all know only facilitates rusts). I only figured out the engine was transplanted by trying to match the vins on the engine, tranny, and chassis together( none which matched) Seeing as i have allready have changed out my radiator, looks like the tb and wp will be the next thing for sure. It's a good thing i have other cars to drive around.

[esskater892]

i have a quick question. my car heats up and is like either half way or a lil above half way to H. is that norm... if not then uh i need to do something. and if it is norm i still want to make it run cooler. ... i do have a a4 engin in my 93 se . thoes came with a a6. the a4 headers are closer to the rad than if it was the a6 headers and engine.

[lokuputha]

pick up an OEM Honda Thermostat from the dealership and you should be good to go.