What should a s13 KA thermostat open at?

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spitz7985
Posts: 503
Joined: Sun Nov 10, 2002 11:01 am
Car: HICAS S13

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What temp. should a s13 KA-D thermostat open at? I thought mine was bad because my car showed all the symptoms, took it out, refilled and bled the coolant system, and it ran fine without one in so I assumed that the thermostat was the problem. Took it inside, put a meat thermometer in a pot of water, dropped in the thermo and turned on the burner. The thermo opened at around 180 degrees F. That seems normal to me? Maybe my cooling problem before was because there was air in the system?


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Tsukai240
Posts: 779
Joined: Wed Mar 31, 2004 8:58 am

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well i don't know what simptoms you mean but when i changed my top radiator hose, i forgot to take out the air releif bolt. so there was air in the system. that caused the gauge to go right up, even though it wasn't verry hot. so i then did a coolant system flush and then did every thing correctly. now it runs cooler than before all the drama.

Nismo_Freak
Posts: 10314
Joined: Wed Jul 24, 2002 10:42 pm
Car: 89 Nissan 240SX

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180 is normal.

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DammitBobby
Posts: 1431
Joined: Fri May 02, 2003 5:41 am
Car: S13 91 KA24DET
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I had a problem with overheating to. It end up being the new thermostat. Sure I did the same thing put it in a pot hot water and watched it open up but it didn`t open up all the way. I bought another one from a different store and it open all the way. Dam cheap parts.

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niznos
Posts: 431
Joined: Sat Mar 20, 2004 6:36 pm
Car: 03 Z-track, 98 Maxima GXE, 90 240SX RIP

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The stock thermostat is rated at 170 degrees, so 180 is probably acceptable.

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black s13
Posts: 306
Joined: Mon Jun 09, 2003 7:27 am

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180 is where a stock nissan thermo opens, or so says my autometer gauge.

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niznos
Posts: 431
Joined: Sat Mar 20, 2004 6:36 pm
Car: 03 Z-track, 98 Maxima GXE, 90 240SX RIP

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Ok, FSM says 170 is where it begins to open (thermostat ratings are for the temp it begins to open at), and fully open is at 194 with a opening of 0.31 inch.


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