OverHeating Problem - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

D1_King · 03-17-2007, 02:15 PM

ok i have a KA24DE and the compresion is up.it has
ka24e pistons,
Port and Polished
oversized valves and springs

it overheats for some reason and i cant find the problem.
i checked cooleint and everything. it seemed right.

420sx · 03-17-2007, 02:21 PM

check your thermostat. replace, flush the radiator real good, put new fluild in. should solve.
what kind of fans do you run? stock radiator?

D1_King · 03-17-2007, 02:51 PM

Koyo Radiator and Flexlight and i already did do the fluid stuff

johngriff · 03-17-2007, 03:02 PM

Given, the block/headgasket etc is in good shape.

Air in System, bleed accordingly.

I_DID_SILVIA · 03-17-2007, 03:19 PM

does it still heat up when you put the heater on? or have you even tryed that yet?

D1_King · 03-17-2007, 03:37 PM

i havent put on the heater yet

240sxworkinprogress · 03-17-2007, 04:34 PM

Have you ever replace the coolent temp sensor? The sensor between the S13and S14 are different. If you put a S13 sensor in a S14 it always read hot.
If you haven't replace the sensor then I would just do what 420sx says. Also check to make sure your headgasket is in good shape and the head.

zero.counter · 03-17-2007, 05:28 PM

Do all of the above and also check that all of your hoses are tightened. Check all of them for any trickling of AF, as that is an indicator of a pressuruzation leak, which also allows for air to enter the system. If an air bleed fixes the problem temporarily, then this may be your problem.

03-17-2007, 02:15 PM	#1
D1_King Join Date: Feb 2006 Location: Charlotte Posts: 33 Trader Rating: (0) Feedback Score: 0 reviews	OverHeating Problem ok i have a KA24DE and the compresion is up.it has ka24e pistons, Port and Polished oversized valves and springs it overheats for some reason and i cant find the problem. i checked cooleint and everything. it seemed right.

03-17-2007, 02:21 PM	#2
420sx Post Whore! Join Date: Jun 2004 Location: Texas Age: 42 Posts: 3,960 Trader Rating: (0) Rides Gallery: 420sx Feedback Score: 0 reviews	check your thermostat. replace, flush the radiator real good, put new fluild in. should solve. what kind of fans do you run? stock radiator? __________________ hydropgrahics! ls1......

03-17-2007, 03:02 PM	#4
johngriff Post Whore! Join Date: Jun 2004 Location: Long Beach, CA Posts: 4,103 Trader Rating: (4) Rides Gallery: johngriff Feedback Score: 4 reviews	Given, the block/headgasket etc is in good shape. Air in System, bleed accordingly. __________________ [email protected]

03-17-2007, 02:51 PM	#3
D1_King Join Date: Feb 2006 Location: Charlotte Posts: 33 Trader Rating: (0) Feedback Score: 0 reviews	Koyo Radiator and Flexlight and i already did do the fluid stuff

03-17-2007, 03:19 PM	#5
I_DID_SILVIA Leaky Injector Join Date: Mar 2007 Location: inland empire FOO! aka RIVERSIDE ca Posts: 81 Trader Rating: (0) Feedback Score: 0 reviews	does it still heat up when you put the heater on? or have you even tryed that yet?

03-17-2007, 03:37 PM	#6
D1_King Join Date: Feb 2006 Location: Charlotte Posts: 33 Trader Rating: (0) Feedback Score: 0 reviews	i havent put on the heater yet

03-17-2007, 04:34 PM	#7
240sxworkinprogress Leaky Injector Join Date: Feb 2006 Location: Crestwood Posts: 118 Trader Rating: (1) Feedback Score: 1 reviews	Have you ever replace the coolent temp sensor? The sensor between the S13and S14 are different. If you put a S13 sensor in a S14 it always read hot. If you haven't replace the sensor then I would just do what 420sx says. Also check to make sure your headgasket is in good shape and the head.

03-17-2007, 05:28 PM	#8
zero.counter Nissanaholic! Join Date: Jun 2003 Location: At work Posts: 2,003 Trader Rating: (0) Feedback Score: 0 reviews	Do all of the above and also check that all of your hoses are tightened. Check all of them for any trickling of AF, as that is an indicator of a pressuruzation leak, which also allows for air to enter the system. If an air bleed fixes the problem temporarily, then this may be your problem.