and the repairs begin >:D

[darksolderx]

car: 00 Si (b16a2)

very recently i made a post about my car being messed up due to my valve cover painting which turned out to be my spark plugs in the wrong order which was pointed out by ron and a few other members so thank you guys again. with that aside the main problem i was having was some type of overheating issue i resolved that one somewhat since it turned out to be my radiator that was leaking. (the radiator btw is a C&R which is all beat the hell up)so i bought a brand new koyo along with it i bought a new upper radiator hose that was just a lame introduction heres why im really posting.

koyo radiator i got incase anyone was curious:
http://www.frsport.com/Koyo-R1570-53mm-Aluminum-Racing-Radiator-92-00-Civic-SI_p_1745.html#

1. is there a reason when my car is at full operating temperture that the bottom rad hose isnt hot? its pretty cold atleast near the radiator as it gets closer to block is feels a little bit warmer is this bad?

2. based on the first question should a buy a new thermostat?

3. do Si's normally eat so much gas even when i drive fairly slow or should i look into replacing my sparkplugs and sparkplug wires, since i dont beleive theyve been replaced for a very long time.

4. the new koyo im buying anyone else have one? if so do you like it?

i always blank out when i have questions so thats all i got i suppose after i put the rad in ill start posting pics of my car in the appropriate section for everyone to enjoysince i got a new camera for xmas ^_^

 

[lethal6]

1. It is supposed to be cold coming through the bottom hose. Comes out of the block into the radiator through the top hose, goes through the radiator to cool down and comes back to the block through the bottom hose. That is why the car will run very hot if the thermostat is stuck shut as it won't let it out of the block to go in the radiator to cool down.

2. Take the thermostat out of the car. Go inside the house and heat up a pot of water on the stove to 200 degrees. Slowly put the thermostat into the hot water. If it is working correctly it should start to open immediately. To be honest, t-stats are extremely cheap and easy to replace. I would do it anyway. Especially if you don't know how old it is and you are putting a new radiator in anyway so why not.

3. Full tune up couldn't hurt. Definitely if you don't know when it was done last. This would include plugs, wires, cap, rotor, fuel filter, air filter (if you still have the stock type one), and PCV valve. All of this is very cheap considering. One of the first things I do on EVERY used car I buy, regardless if the owner says they did it or not unless the show me proof.

4. Couldn't tell you on this one. Never bought one.

 

[darksolderx]

1. It is supposed to be cold coming through the bottom hose. Comes out of the block into the radiator through the top hose, goes through the radiator to cool down and comes back to the block through the bottom hose. That is why the car will run very hot if the thermostat is stuck shut as it won't let it out of the block to go in the radiator to cool down.

wait thats confusing so its ok that the bottom hose is cold at normal running temp?

 

[lethal6]

Yessir. Think about it. What are the radiator and fans there for? To cool down the coolant before sending it back through the motor.

If your t-stat, fans, and radiator are working correctly, the lower hose should be cool at normal running temp. The hose will be hot if there is a problem with the fans or the radiator as they aren't doing their job in "cooling" down the coolant.

 

[emerican]

Yessir. Think about it. What are the radiator and fans there for? To cool down the coolant before sending it back through the motor.

If your t-stat, fans, and radiator are working correctly, the lower hose should be cool at normal running temp. The hose will be hot if there is a problem with the fans or the radiator as they aren't doing their job in "cooling" down the coolant.

I agree a full tune up would most likely fix the gas problem plugs, wires, distributor cap and rotor button, fuel filter, oil change if its time or if you dont know when it was done and i personally use a bottle of fuel injector cleaner every 3000 miles only costs 5 dollars cant hurt