S2000 Under The Hood S2000 Technical and Mechanical discussions.

Radiator Flush

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Old 09-25-2010, 11:35 AM
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but for trying to DIY

keep it up.
Old 09-25-2010, 01:29 PM
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Originally Posted by wwevo8,Sep 25 2010, 11:15 AM
, I just called to order the OEM honda coolant but they said it needs to be mixed with water and im not sure how to do that one. is there a specific kind that you guys get that comes mixed ready to go ? or you all mix it as well ? thanks,
The OEM Honda stuff comes pre-mixed. Don't dilute it more and don't buy it from some place telling you to dilute it.
Old 09-25-2010, 01:36 PM
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Don't bother wasting money on flushing the coolant system unless you put something in there that's not supposed to be. Just do a normal drain and fill for the coolant system. But I have a feeling that is all you are asking about tho?
Old 09-25-2010, 02:20 PM
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i like to keep the radiator cap on while its draining, that way the expansion tank/reservoir empties too
Old 09-25-2010, 02:20 PM
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Use honda Type 2 blue coolant. No mixing, ready to go.

I would not flush it with water. This system is one of the best designed and remains completely spotless.

drain the radiator. Small white petcock in the bottom center. By design, the block will drain also.

The most important part is to bleed the air out when filling. Many people have done engine damage by driving with air in the system. This car can go FIFTEEN MILES and be fine, then overheat suddenly.

Bleed until the heat blows good hot air.
Old 09-25-2010, 02:26 PM
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yeah I was gonna do it just because since I have 80000 milles on it thats all, I just bought the car thats why , so if its not necessary then I leave it as is.
Old 09-25-2010, 02:41 PM
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Originally Posted by Billman250,Sep 25 2010, 02:20 PM
Use honda Type 2 blue coolant. No mixing, ready to go.

I would not flush it with water. This system is one of the best designed and remains completely spotless.

drain the radiator. Small white petcock in the bottom center. By design, the block will drain also.

The most important part is to bleed the air out when filling. Many people have done engine damage by driving with air in the system. This car can go FIFTEEN MILES and be fine, then overheat suddenly.

Bleed until the heat blows good hot air.
listen to this man..
he know of what he speaks
Old 09-25-2010, 02:45 PM
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Yep,drain petcock is white about midway under the rad.Turn it counter-clock and remove ,it will drain with a good flow.I use a siphon pump to pump out the overflow/res.

I did mine yesterday ( I change it every year).EZ job,takes about 30 min to drain ,refill & bleed air out.

I use Prestone 50/50 ( yellow bottle).

\rlr
carolina
Old 09-25-2010, 03:16 PM
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The overflow is not bolted, it just lifts out
Old 09-25-2010, 04:29 PM
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Hope this can help.

http://forums.s2kca.com/showthread.php?t=12152


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