[robbanks111]

but the problem is.. the bottom hose is NOT even warm or anything.. should i just leave it running for a longer time??.. like 30minuts??

QUOTE]

whats happening is the coolant in the engine heats up. then the thermostat opens up allowing the hot coolant out of the engine to the radiator (top hose). hence the top hose is hot while the bottom one is cool. as the cooler coolant enters the engine the thermostat closes until it exceeds the thermostat rating and then it opens up again and lets that coolant out. this happens several times until all of the coolant is the same temp. when all of the coolant is the same temp (195 degrees i think).. then the coolant temp. is regulated by the thermostat and the fan

 

[robbanks111]

thanks for the explaination..
1). if the thermostat is bad.. and i drive it.. can i totally damage the car(like BHG)??

2). if i am to take out the thermostat.. can it be done without taking the throttle body, because the throttle cables are in the way..
and when putting it back in.. should RTV be used? and what's the part Number for a new thermastat if i am to buy it from Honda?. the HOnda guy told me he can't find it ... i got a 91 LS 4door.

thanks for all your help so far .. :bowdown:

1) your thermostat is probably not bad it is just recomended to change when you do your radiator. I'm sure there is a DIY somewhere.

after doing any work on your car you should always check for leaks and such. just drive it around the block a few times watching the temperature guage closly. then when you get home check for leaks.

2) I believe that the thermostat has a rubber gasket around it. so I would not recommend taking it off the stat, not sure how effective the seal would be since they are incorporated into each other.
No i don't think you need RTV and buy the stat from a Acura/Honda dealer.