normal operating temperature - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Kaotik25 · 03-02-2007, 01:59 PM

hi guy,

i have stock KA24E, what is the normal operating temperature for the engine. The aftermarket gauge reads 210F but my stock gauge is reading overheat. I do feel a lost of power around 190-210F. Can someone confirm that 210 is normal operating temp. Tried searching but was not helpful. Thanks in advance.

***S14DB*** · 03-02-2007, 02:57 PM

190-200*F is normal operating range. Low fan comes on at 201*. 210* the AC fan should be running high speed all the time.

Kaotik25 · 03-02-2007, 03:34 PM

Thanks, very much appreciated. So running at 210 it should be ok for me to ignore the stock gauge (which is telling me it's HOT) and read the aftermarket gauge?

LB.Motoring · 03-02-2007, 03:37 PM

stock guages = a random guess

***S14DB*** · 03-02-2007, 03:44 PM

It is Hot... You do have issues. The thermostat starts opening at 170*F

steve shadows · 03-02-2007, 06:01 PM

Quote:

Originally Posted by S14DB

It is Hot... You do have issues. The thermostat starts opening at 170*F

I thought OEM KA thermo is hotter, but I might be wrong

SR stock is 76 deg C which is like 168 F.

iono just talking outloud

Flybert · 03-02-2007, 06:19 PM

Water boils at 212. 210 is bad. Something's wrong.

***S14DB*** · 03-02-2007, 06:38 PM

Quote:

Originally Posted by steve shadows

I thought OEM KA thermo is hotter, but I might be wrong

SR stock is 76 deg C which is like 168 F.

iono just talking outloud

I wasn't sure so I got the FSM off the shelf to check before I posted. I had heard that they are the exact same part from Nissan from people as KA guys use the SR performance Themos with lower temps(Nismo, Billion, ect.).

Quote:

Originally Posted by Flybert

Water boils at 212. 210 is bad. Something's wrong.

At atmospheric pressure. You have to remember you have the radiator cap boosting the pressure in the system to 11-14psi. Effectively boosting the boiling point. Putting a 300zx 16psi cap will raise the boiling point even more. Also, why when you are over heating you don't want to relieve the pressure. Water will flash boil in the head. Happened to a member this week an hour after he sold the car to some idiot.

projectRDM · 03-02-2007, 07:20 PM

OE fan runs low at 203, high at 212. Normal range is 180-190. Thermo opens at 170.

Check for blockage and air pockets.

Kaotik25 · 03-04-2007, 06:02 PM

thanks for the info. I do believe there is a problem with my cooling system. Im now working on finding the culprit. From visual check, it's boiling in the reservior tank at ~210, not good. Ran compression check, headgasket is good. Therefore, it's either a leak, air pocket, cap is not holding air, or the radiator itself. Any ideas??

***S14DB*** · 03-04-2007, 07:19 PM

Thermostat and a flush is what I would do first.

DJ_Sunrise · 03-05-2007, 06:31 AM

what s14db said. even after hard runs in crazy heat i havent really seen stock KA's go over 90C...

onemotion · 03-05-2007, 07:10 AM

you should download the fsm for that manual and follow the procedures it tells you to check for overheating problems. it will probably tell you to do a pressure check first make sure everything is working properly before you start replacing parts for no reason. like the saying goes if it aint broke dont fix it.

Kaotik25 · 03-05-2007, 02:04 PM

Thanks. I have the FSM with me right now and looking through it. The Thermostat is new i replaced it about 3 months ago. I'll read up and probably do a long and detail flush to get rid of the air pockets this weekend.

Canaduh · 03-05-2007, 02:25 PM

Don't rule out the thermostat. Still could be defective.

chmercer · 03-05-2007, 02:56 PM

has anyone recorded water temps with a drilled stock thermo in a ka

trying to decide how many holes to put

KA-T_240 · 03-05-2007, 07:04 PM

I have mine set to run about 180-185 and in traffic I haven't scene it my gauge go above 200. The stock Temp guage is dumb. I don't even look at it. I have a autometer guage in the upper radiator hose.

03-02-2007, 01:59 PM	#1
Kaotik25 Zilvia Junkie Join Date: Aug 2006 Location: SoCal Age: 40 Posts: 332 Trader Rating: (0) Feedback Score: 0 reviews	normal operating temperature hi guy, i have stock KA24E, what is the normal operating temperature for the engine. The aftermarket gauge reads 210F but my stock gauge is reading overheat. I do feel a lost of power around 190-210F. Can someone confirm that 210 is normal operating temp. Tried searching but was not helpful. Thanks in advance.

03-02-2007, 02:57 PM	#2
*S14DB* AFC #1 Join Date: Oct 2003 Location: 昨晩あなたのお母さんの家 Posts: 20,181 Trader Rating: (3) Feedback Score: 3 reviews	190-200F is normal operating range. Low fan comes on at 201. 210* the AC fan should be running high speed all the time. __________________ Comments should be taken as Opinions not as Statements of Fact

03-02-2007, 03:37 PM	#4
LB.Motoring Post Whore! Join Date: Jul 2006 Location: SòCal♥ Age: 38 Posts: 5,840 Trader Rating: (1) Rides Gallery: LB.Motoring Feedback Score: 1 reviews	stock guages = a random guess __________________ Robby Leuer

03-02-2007, 03:44 PM	#5
*S14DB* AFC #1 Join Date: Oct 2003 Location: 昨晩あなたのお母さんの家 Posts: 20,181 Trader Rating: (3) Feedback Score: 3 reviews	It is Hot... You do have issues. The thermostat starts opening at 170*F __________________ Comments should be taken as Opinions not as Statements of Fact

03-04-2007, 07:19 PM	#11
*S14DB* AFC #1 Join Date: Oct 2003 Location: 昨晩あなたのお母さんの家 Posts: 20,181 Trader Rating: (3) Feedback Score: 3 reviews	Thermostat and a flush is what I would do first. __________________ Comments should be taken as Opinions not as Statements of Fact

03-02-2007, 03:34 PM	#3
Kaotik25 Zilvia Junkie Join Date: Aug 2006 Location: SoCal Age: 40 Posts: 332 Trader Rating: (0) Feedback Score: 0 reviews	Thanks, very much appreciated. So running at 210 it should be ok for me to ignore the stock gauge (which is telling me it's HOT) and read the aftermarket gauge?

03-02-2007, 06:19 PM	#7
Flybert Post Whore! Join Date: Mar 2003 Location: none Posts: 3,862 Trader Rating: (7) Feedback Score: 7 reviews	Water boils at 212. 210 is bad. Something's wrong.

03-02-2007, 07:20 PM	#9
projectRDM Post Whore! Join Date: Dec 2002 Location: Atlanta Age: 51 Posts: 13,812 Trader Rating: (12) Feedback Score: 12 reviews	OE fan runs low at 203, high at 212. Normal range is 180-190. Thermo opens at 170. Check for blockage and air pockets.

03-04-2007, 06:02 PM	#10
Kaotik25 Zilvia Junkie Join Date: Aug 2006 Location: SoCal Age: 40 Posts: 332 Trader Rating: (0) Feedback Score: 0 reviews	thanks for the info. I do believe there is a problem with my cooling system. Im now working on finding the culprit. From visual check, it's boiling in the reservior tank at ~210, not good. Ran compression check, headgasket is good. Therefore, it's either a leak, air pocket, cap is not holding air, or the radiator itself. Any ideas??

03-05-2007, 06:31 AM	#12
DJ_Sunrise Zilvia FREAK! Join Date: Feb 2004 Location: NJ Age: 38 Posts: 1,134 Trader Rating: (1) Feedback Score: 1 reviews	what s14db said. even after hard runs in crazy heat i havent really seen stock KA's go over 90C...

03-05-2007, 07:10 AM	#13
onemotion Join Date: Oct 2006 Location: philadelphia, pa Posts: 10 Trader Rating: (3) Feedback Score: 3 reviews	you should download the fsm for that manual and follow the procedures it tells you to check for overheating problems. it will probably tell you to do a pressure check first make sure everything is working properly before you start replacing parts for no reason. like the saying goes if it aint broke dont fix it. __________________ OneMotion

03-05-2007, 02:04 PM	#14
Kaotik25 Zilvia Junkie Join Date: Aug 2006 Location: SoCal Age: 40 Posts: 332 Trader Rating: (0) Feedback Score: 0 reviews	Thanks. I have the FSM with me right now and looking through it. The Thermostat is new i replaced it about 3 months ago. I'll read up and probably do a long and detail flush to get rid of the air pockets this weekend.

03-05-2007, 02:25 PM	#15
Canaduh Zilvia Member Join Date: Jan 2007 Location: Winnipeg, Canada Posts: 227 Trader Rating: (0) Feedback Score: 0 reviews	Don't rule out the thermostat. Still could be defective.

03-05-2007, 02:56 PM	#16
chmercer BANNED Join Date: Jun 2003 Location: texas! Age: 39 Posts: 3,288 Trader Rating: (0) Feedback Score: 0 reviews	has anyone recorded water temps with a drilled stock thermo in a ka trying to decide how many holes to put

03-05-2007, 07:04 PM	#17
KA-T_240 Nissanaholic! Join Date: Sep 2005 Location: Moorhead, MN Age: 38 Posts: 1,788 Trader Rating: (0) Feedback Score: 0 reviews	I have mine set to run about 180-185 and in traffic I haven't scene it my gauge go above 200. The stock Temp guage is dumb. I don't even look at it. I have a autometer guage in the upper radiator hose. __________________