car runs really hot - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

chriz_89 · 05-17-2012, 06:39 PM

Ive changed the radiator, water pump, thermostat and it still runs hot. I use 50wto synthetic oil and 91 octane. Single cam. Any ideas on what could b wrong? Any help would be appreciated.

Bentleyness · 05-17-2012, 07:05 PM

bleed it right and use a fan

hollerjeet · 05-17-2012, 09:46 PM

did you burp it ? is timing correct

chriz_89 · 05-17-2012, 11:13 PM

Whats burp it? I have never messed with the timing. Its stock motor

jdm213 · 05-18-2012, 12:10 AM

burping is the same thing as bleeding, u need to bleed ur cooling system of any air or else ur gonna have hot spots in ur rad and ur pressure would be off so u may still have air in ur system. you can search this ...things i would also check if ur car is running hot is the sparkplugs u should be running 5s if its a ka .... and the the fuel filter perhaps its not flwing enough fuel may be clogged and causing you to run a bit lean and with the spark plugs even leaner lol . it could be the culprit and check ur timing he may be right

KiLLeR2001 · 05-18-2012, 02:20 AM

Switch to 10w-30 synthetic oil. Having thicker oil will give you more oil pressure but won't dissipate heat as fast.

This is assuming you've already bled your coolant system out properly and everything is functional as it should be.

chriz_89 · 05-18-2012, 04:02 PM

Quote:

Originally Posted by KiLLeR2001

Switch to 10w-30 synthetic oil. Having thicker oil will give you more oil pressure but won't dissipate heat as fast.

This is assuming you've already bled your coolant system out properly and everything is functional as it should be.

Im going to try this

05-17-2012, 06:39 PM	#1
chriz_89 Join Date: May 2011 Location: pomona Age: 32 Posts: 49 Trader Rating: (0) Feedback Score: 0 reviews	car runs really hot Ive changed the radiator, water pump, thermostat and it still runs hot. I use 50wto synthetic oil and 91 octane. Single cam. Any ideas on what could b wrong? Any help would be appreciated.

05-18-2012, 02:20 AM	#6
KiLLeR2001 Post Whore! Join Date: Jun 2007 Location: オーランドフロリダ Posts: 7,955 Trader Rating: (46) Feedback Score: 46 reviews	Switch to 10w-30 synthetic oil. Having thicker oil will give you more oil pressure but won't dissipate heat as fast. This is assuming you've already bled your coolant system out properly and everything is functional as it should be. __________________

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05-17-2012, 07:05 PM	#2
Bentleyness Leaky Injector Join Date: Mar 2012 Location: chicago area Age: 33 Posts: 140 Trader Rating: (0) Feedback Score: 0 reviews	bleed it right and use a fan

05-17-2012, 09:46 PM	#3
hollerjeet Zilvia Junkie Join Date: Jan 2007 Location: San Jose CA Posts: 374 Trader Rating: (18) Feedback Score: 18 reviews	did you burp it ? is timing correct

05-17-2012, 11:13 PM	#4
chriz_89 Join Date: May 2011 Location: pomona Age: 32 Posts: 49 Trader Rating: (0) Feedback Score: 0 reviews	Whats burp it? I have never messed with the timing. Its stock motor

05-18-2012, 12:10 AM	#5
jdm213 Zilvia Addict Join Date: Sep 2009 Location: los angeles Age: 31 Posts: 957 Trader Rating: (10) Feedback Score: 10 reviews	burping is the same thing as bleeding, u need to bleed ur cooling system of any air or else ur gonna have hot spots in ur rad and ur pressure would be off so u may still have air in ur system. you can search this ...things i would also check if ur car is running hot is the sparkplugs u should be running 5s if its a ka .... and the the fuel filter perhaps its not flwing enough fuel may be clogged and causing you to run a bit lean and with the spark plugs even leaner lol . it could be the culprit and check ur timing he may be right