could it be the head gasket? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

civilized_drifter · 06-05-2008, 02:55 AM

i was driving home today and i went to give it some gas after i shifted into 4th and i had no power all of the sudden. i down shifted and gave it gas again and i tottaly lost all power and it stalled out. my friend was there with me and he checked the oil and he said that the oil is really thin as if coolant was mixed in it. i checked the spark plugs and they smelled like burnt coolent and oil and the tips were whitish brown. it started and idled until i give it a little gas and it dies. i got the car towed home and i checked the cylenders and i didnt see any coolent in there. when i wake up im gonna drain the coolent and see if there is oil mixed in there, the same with the oil.

could it be my head gasket? or is there something else that could be the problem? cause i have a spare rebuilt head and a head gasket for my spare ka and i dont wanna tear into this one if i dont have to.

*downshift_sideways* · 06-05-2008, 03:06 AM

By what you described...it does not sound like a headgasket problem.
Does your friend know anything about cars? or yourself?

How was your coolant? low? Check your oil cap, sludgy at all?

Might wanna double check and do a compression test to see how each cylinder(s) are holding up for security.

sliddinsil8o · 06-05-2008, 04:42 AM

Same problem I had with the exception of thin oil and coolent issue...lost power going up a hill, down shifted to 3rd, no power...car died and I forced it to turn back on due to the fact that I was traveling at 50mph. But once it was at a complete stop it never turned back on. Point of this is that it ended up being a faulty injector...might want to look in that direction

infinitexsound · 06-05-2008, 04:52 AM

leak down test.... first... make sure... then start from there.....

civilized_drifter · 06-05-2008, 12:17 PM

Quote:

Originally Posted by downshift_sideways

Does your friend know anything about cars? or yourself?

How was your coolant? low? Check your oil cap, sludgy at all?

Might wanna double check and do a compression test to see how each cylinder(s) are holding up for security.

he has a fully built ka and yes he does. im gonna do a leakdown test and check the injectors

sr20det drift · 06-05-2008, 09:07 PM

i say do a compression test, and after you see your numbers, go on and test injectors, then test spark

RedtopTech · 06-05-2008, 09:33 PM

Another simple test that can pinpoint a problem cylinder is the balance test. attempt to hold around 2500rpm and unplug 1 injector at a time. each cylinder should drop the same amount of rpm when fuel is cut. If not than the cylinder with the least amount of change shows a weak cylinder for one reason or another.

s13_maJiK · 06-06-2008, 02:42 AM

your oil wouldn't be thin and if there was coolant in it it would be milky

usajdm · 06-06-2008, 03:17 AM

+1 on compression test and injectors.
Not the head gasket.

civilized_drifter · 06-06-2008, 07:46 AM

Quote:

Originally Posted by RedtopTech

Another simple test that can pinpoint a problem cylinder is the balance test. attempt to hold around 2500rpm and unplug 1 injector at a time. each cylinder should drop the same amount of rpm when fuel is cut. If not than the cylinder with the least amount of change shows a weak cylinder for one reason or another.

i would do that but my car dosent run. everytime i get it to start i give it gas it dies. last night i found my problem, the fuel pump isnt priming. when i get off work im gonna check to see if it is pumping

HS13KLS · 06-06-2008, 07:46 AM

DUDE
i had the same problem..like 2 weeks ago..i thought i blew mine...execpt i was on the highway when i did it.
luckily it didnt stall there.anyways. i look off the valve cover and checked my valve train nothing was broken, and i dont think any rods or anything were hurt because im sure i would feel a sudden loss in power..i changed the oil...maybe 4-5 times with in 3 days.. and i checked the oil and it was perfect again, because mine was MILKY..looked like..well milk ha..
but if you need a headgasket i have a cometic one

06-05-2008, 02:55 AM	#1
civilized_drifter Zilvia Junkie Join Date: Oct 2006 Location: spring hill, TN Age: 36 Posts: 584 Trader Rating: (0) Feedback Score: 0 reviews	could it be the head gasket? i was driving home today and i went to give it some gas after i shifted into 4th and i had no power all of the sudden. i down shifted and gave it gas again and i tottaly lost all power and it stalled out. my friend was there with me and he checked the oil and he said that the oil is really thin as if coolant was mixed in it. i checked the spark plugs and they smelled like burnt coolent and oil and the tips were whitish brown. it started and idled until i give it a little gas and it dies. i got the car towed home and i checked the cylenders and i didnt see any coolent in there. when i wake up im gonna drain the coolent and see if there is oil mixed in there, the same with the oil. could it be my head gasket? or is there something else that could be the problem? cause i have a spare rebuilt head and a head gasket for my spare ka and i dont wanna tear into this one if i dont have to. __________________

06-05-2008, 03:06 AM	#2
downshift_sideways No Limit Soldier. Join Date: Jan 2006 Location: Hayward CA, San Gabriel CA Age: 38 Posts: 5,550 Trader Rating: (0) Rides Gallery: downshift_sideways Feedback Score: 0 reviews	By what you described...it does not sound like a headgasket problem. Does your friend know anything about cars? or yourself? How was your coolant? low? Check your oil cap, sludgy at all? Might wanna double check and do a compression test to see how each cylinder(s) are holding up for security. __________________ allntrlundrgrnd: "you never really appreciate your parents fridge until you look into your own and its full of condiments only"

06-05-2008, 04:42 AM	#3
sliddinsil8o Leaky Injector Join Date: May 2005 Location: T3x@$$ Age: 40 Posts: 107 Trader Rating: (1) Feedback Score: 1 reviews	Same problem I had with the exception of thin oil and coolent issue...lost power going up a hill, down shifted to 3rd, no power...car died and I forced it to turn back on due to the fact that I was traveling at 50mph. But once it was at a complete stop it never turned back on. Point of this is that it ended up being a faulty injector...might want to look in that direction __________________ **SIGNATURE EXCEEDS FORUM LIMITS....PLEASE READ THE RULES**

06-05-2008, 04:52 AM	#4
infinitexsound Post Whore! Join Date: Sep 2003 Location: INtraweb Age: 42 Posts: 3,522 Trader Rating: (0) Feedback Score: 0 reviews	leak down test.... first... make sure... then start from there..... __________________ S14 TrackSlut coming to a raceway near you... 510 TimeAttack on its way...

06-06-2008, 03:17 AM	#9
usajdm Zilvia Junkie Join Date: Jan 2006 Location: east bay ca. Posts: 458 Trader Rating: (0) Feedback Score: 0 reviews	+1 on compression test and injectors. Not the head gasket. __________________ What the hell is "BALLER" or "GANGSTER" status, about a 240sx?

06-05-2008, 09:07 PM	#6
sr20det drift Leaky Injector Join Date: Feb 2008 Location: chi Posts: 112 Trader Rating: (0) Feedback Score: 0 reviews	i say do a compression test, and after you see your numbers, go on and test injectors, then test spark

06-05-2008, 09:33 PM	#7
RedtopTech Zilvia Member Join Date: Dec 2005 Location: Virginia Beach, VA Age: 40 Posts: 293 Trader Rating: (0) Feedback Score: 0 reviews	Another simple test that can pinpoint a problem cylinder is the balance test. attempt to hold around 2500rpm and unplug 1 injector at a time. each cylinder should drop the same amount of rpm when fuel is cut. If not than the cylinder with the least amount of change shows a weak cylinder for one reason or another.

06-06-2008, 02:42 AM	#8
s13_maJiK Zilvia Member Join Date: May 2008 Location: MKE Age: 35 Posts: 181 Trader Rating: (1) Feedback Score: 1 reviews	your oil wouldn't be thin and if there was coolant in it it would be milky

06-06-2008, 07:46 AM	#11
HS13KLS Zilvia FREAK! Join Date: Aug 2006 Location: Illinois/California Age: 35 Posts: 1,114 Trader Rating: (13) Feedback Score: 13 reviews	DUDE i had the same problem..like 2 weeks ago..i thought i blew mine...execpt i was on the highway when i did it. luckily it didnt stall there.anyways. i look off the valve cover and checked my valve train nothing was broken, and i dont think any rods or anything were hurt because im sure i would feel a sudden loss in power..i changed the oil...maybe 4-5 times with in 3 days.. and i checked the oil and it was perfect again, because mine was MILKY..looked like..well milk ha.. but if you need a headgasket i have a cometic one