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

pignose4life · 12-10-2007, 12:05 AM

ok so my sohc has taken a turn for the worst, ill start out by saying i have a 89 240sx with the stock ka24e 200k+ miles. anyways my water pump went out i replaced it, to find out that my radiator is also cracked. i replace my radiator get my car up and running. shortly after replacing the radiator i noticed lots of white smoke coming out of my exhaust when warming up for the first couple of minutes. i thought its just steam and the cold weather so i let it warm up, no water leaking from under so i go around the block for a test drive. right from the start i noticed my car running like shit, rpm's all over the place when idling, and real rough on low rpm's. so driving no more than 3 or 4 blocks my temp is about 2 lines away from the bold H lines. i get home real quick to check it out and i notice that a bit of oil has leaked from the left side of the valve cover. so i try and start up again and its not starting, its at the verge of starting but it doesn't. i let it sit for a bit, and it starts up with the white smoke again, so i let it idle for a good 15 minutes the white smoke goes away, and its at the normal temp about the second line. i go around the block again and the temp goes up to the same H point as before. can you guys please help me out.

*njd07* · 12-10-2007, 12:26 AM

white smoke= burning coolant...not a leak outside the engine...maybe you have a leaking headgasket or cracked water passage. your gonna want to do a compression test and a maybe leakdown if you can access the equipment needed.

pignose4life · 12-10-2007, 12:32 AM

well im using water for the time being in case of leak i dont want to waste money. anyways ill do a compression test tomorrow and report back with update.

dops13 · 12-10-2007, 01:12 AM

The white smoke = bad headgasket. Do you mean just hot air that looks white? Im think it's just the cold weather. I think your problem is you need to bleed out the air out of your cooling system at the moment. Make sure you did that right.

HalveBlue · 12-10-2007, 01:36 AM

Headgasket.

Your broken waterpump and cracked radiator probably let the engine overheat leading to a bad headgasket.

Good Luck!

wonkuuzenki · 12-10-2007, 01:37 PM

blown headgasket...
wait you don't own an MA70?!?!

*S13Boosts* · 12-10-2007, 02:25 PM

yup headgasket or check ur water pump

Slammed Assassin · 12-10-2007, 02:41 PM

i have the same problem rite now too..can it be thermostat?

pignose4life · 12-10-2007, 04:08 PM

i was thinking it was the head gasket too but ill know for sure when i get that compression test, waiting for my friend on it =[
thanks for the help guys and no i dont have a supra

wonkuuzenki · 12-10-2007, 04:21 PM

it was a JOKE.

rlpinoy · 12-10-2007, 04:35 PM

when you changed your water pump your should of changed your thermostat as well. sounds like it could be either head gasket or thermostat no opening up.

12-10-2007, 12:05 AM	#1
pignose4life Zilvia Junkie Join Date: Dec 2006 Location: 626.socal Posts: 547 Trader Rating: (2) Feedback Score: 2 reviews	overheating issues ok so my sohc has taken a turn for the worst, ill start out by saying i have a 89 240sx with the stock ka24e 200k+ miles. anyways my water pump went out i replaced it, to find out that my radiator is also cracked. i replace my radiator get my car up and running. shortly after replacing the radiator i noticed lots of white smoke coming out of my exhaust when warming up for the first couple of minutes. i thought its just steam and the cold weather so i let it warm up, no water leaking from under so i go around the block for a test drive. right from the start i noticed my car running like shit, rpm's all over the place when idling, and real rough on low rpm's. so driving no more than 3 or 4 blocks my temp is about 2 lines away from the bold H lines. i get home real quick to check it out and i notice that a bit of oil has leaked from the left side of the valve cover. so i try and start up again and its not starting, its at the verge of starting but it doesn't. i let it sit for a bit, and it starts up with the white smoke again, so i let it idle for a good 15 minutes the white smoke goes away, and its at the normal temp about the second line. i go around the block again and the temp goes up to the same H point as before. can you guys please help me out.

12-10-2007, 12:26 AM	#2
njd07 Premium Member Join Date: Jan 2004 Location: canada Age: 39 Posts: 644 Trader Rating: (14) Feedback Score: 14 reviews	white smoke= burning coolant...not a leak outside the engine...maybe you have a leaking headgasket or cracked water passage. your gonna want to do a compression test and a maybe leakdown if you can access the equipment needed. __________________ s13 parts fs:http://www.zilvia.net/f/showthread.php?t=193416 sr parts fs: http://www.zilvia.net/f/showthread.php?t=193399 s14 parts fs:http://www.zilvia.net/f/showthread.php?t=193420 180sx part out http://zilvia.net/f/showthread.php?t=203711

12-10-2007, 01:37 PM	#6
wonkuuzenki Zilvia Junkie Join Date: Sep 2006 Location: rio rancho, NM Posts: 312 Trader Rating: (0) Feedback Score: 0 reviews	blown headgasket... wait you don't own an MA70?!?! __________________ *Function. Form.* Step Up Drift Club/Upper Limit!

12-10-2007, 04:21 PM	#10
wonkuuzenki Zilvia Junkie Join Date: Sep 2006 Location: rio rancho, NM Posts: 312 Trader Rating: (0) Feedback Score: 0 reviews	it was a JOKE. __________________ *Function. Form.* Step Up Drift Club/Upper Limit!

12-10-2007, 04:35 PM	#11
rlpinoy Zilvia Member Join Date: Sep 2007 Location: SoCal~Long Beach/Carson~ Posts: 284 Trader Rating: (1) Feedback Score: 1 reviews	when you changed your water pump your should of changed your thermostat as well. sounds like it could be either head gasket or thermostat no opening up. __________________ FS Exhaust, Q45 ignitors, & MORE!

12-10-2007, 12:32 AM	#3
pignose4life Zilvia Junkie Join Date: Dec 2006 Location: 626.socal Posts: 547 Trader Rating: (2) Feedback Score: 2 reviews	well im using water for the time being in case of leak i dont want to waste money. anyways ill do a compression test tomorrow and report back with update.

12-10-2007, 01:12 AM	#4
dops13 Zilvia Addict Join Date: Dec 2004 Location: san diego Posts: 732 Trader Rating: (5) Feedback Score: 5 reviews	The white smoke = bad headgasket. Do you mean just hot air that looks white? Im think it's just the cold weather. I think your problem is you need to bleed out the air out of your cooling system at the moment. Make sure you did that right.

12-10-2007, 01:36 AM	#5
HalveBlue Zilvia FREAK! Join Date: Mar 2004 Location: I'm somewhere where I don't know where I am! Posts: 1,549 Trader Rating: (0) Feedback Score: 0 reviews	Headgasket. Your broken waterpump and cracked radiator probably let the engine overheat leading to a bad headgasket. Good Luck!

12-10-2007, 02:25 PM	#7
S13Boosts Premium Member Join Date: Oct 2006 Location: VEGAS Posts: 5,292 Trader Rating: (12) Feedback Score: 12 reviews	yup headgasket or check ur water pump

12-10-2007, 02:41 PM	#8
Slammed Assassin Nissanaholic! Join Date: Feb 2007 Location: Oxnard/SV Posts: 2,065 Trader Rating: (34) Feedback Score: 34 reviews	i have the same problem rite now too..can it be thermostat?

12-10-2007, 04:08 PM	#9
pignose4life Zilvia Junkie Join Date: Dec 2006 Location: 626.socal Posts: 547 Trader Rating: (2) Feedback Score: 2 reviews	i was thinking it was the head gasket too but ill know for sure when i get that compression test, waiting for my friend on it =[ thanks for the help guys and no i dont have a supra