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Hey guys,
I read up on some instructions or "how-to's" regarding flushing and replacing the engine coolant, but I'm looking for someone who can help me find the bleeder screw and thermostat? I appologize if this seems like a dumb question but I want to drain the old coolant and replace the thermostat while I'm at it. Any pics or instructions would be a great help!
Thank you - 1990 Prelude - B20A swap.
 

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Its in the online manual. But the drain plug is at the bottom of the radiator and the thermostat is inside of the thermostat housing.
 

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dont forget to bleed the cooling system, using the bleed nut on the thermostat housing- bleed the system with the heater on full and tighten the nut as soon as you get a constant flow of coolant comming out witth no air
 

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2 simple bolts on the thermo housing. I'd suggest draining the coolant first to get as much out of the pipes as u can so you wont spill too much, and of course dont work on it when the coolant is hot ;)

 

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since were o the suject, just a couple of weeks ago, i drained mine, but i didnt bleed it, will anyting bad happen?
 

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hey guys... im not gonna thread jack but .... this helped me out b/c i was looking under the radiator for the bleed screw :) you guys rock
 

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jdubya said:
since were o the suject, just a couple of weeks ago, i drained mine, but i didnt bleed it, will anyting bad happen?
Bleed it immidiately! Air pockets can ruin flow of the coolant. Dont want that now do you?
 

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jdubya said:
since were o the suject, just a couple of weeks ago, i drained mine, but i didnt bleed it, will anyting bad happen?
Yes, if you have air pockets your engine will overheat. At the very least you will have problems with your heater when the weather gets cold.
 

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sorry to thread-jack, but i added fluid and bleed the system, and if the heats not on the temp gauges goes up near the H ...... one thing i noticed is that the fans are not on.. but after i shut the car off they turn on ... so any help would be awesome
one thing i didnt notice was that u had to have the heat on while u bleed.... i will try that tomorrow :)
 
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