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

Go Back   Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum > General > Tech Talk

Tech Talk Technical Discussion About The Nissan 240SX and Nissan Z Cars


Reply
 
Thread Tools Display Modes
Old 11-22-2014, 07:09 PM   #1
tristan89
Leaky Injector
 
Join Date: Jun 2014
Location: Bend Oregon
Age: 27
Posts: 82
Trader Rating: (2)
tristan89 is an unknown quantity at this point
Feedback Score: 2 reviews
Blown head gasket?

So I just put in a thermostat, car didn't have one in before I bought it, ran fine before I replaced it oil looked fine, now the oil looks a little milky and there was white smoke/steam coming out of the exhaust, not sure which since it's 30 degrees out. Is this a blown head gasket?
tristan89 is offline   Reply With Quote
Sponsored Links
Old 11-22-2014, 07:11 PM   #2
tristan89
Leaky Injector
 
Join Date: Jun 2014
Location: Bend Oregon
Age: 27
Posts: 82
Trader Rating: (2)
tristan89 is an unknown quantity at this point
Feedback Score: 2 reviews
It's in a sr20 if it makes a difference
tristan89 is offline   Reply With Quote
Old 11-22-2014, 07:18 PM   #3
jr_ss
Post Whore!
 
Join Date: Dec 2005
Location: Pa
Posts: 6,409
Trader Rating: (35)
jr_ss has a reputation beyond reputejr_ss has a reputation beyond reputejr_ss has a reputation beyond reputejr_ss has a reputation beyond reputejr_ss has a reputation beyond reputejr_ss has a reputation beyond reputejr_ss has a reputation beyond reputejr_ss has a reputation beyond reputejr_ss has a reputation beyond reputejr_ss has a reputation beyond reputejr_ss has a reputation beyond repute
Feedback Score: 35 reviews
Send a message via AIM to jr_ss
Pictures of coolant?
__________________
*My SR20VET* Does your VTC gear rattle in your S14/15 SR? PM me.
jr_ss is offline   Reply With Quote
Old 11-22-2014, 07:20 PM   #4
tristan89
Leaky Injector
 
Join Date: Jun 2014
Location: Bend Oregon
Age: 27
Posts: 82
Trader Rating: (2)
tristan89 is an unknown quantity at this point
Feedback Score: 2 reviews
What would coolant look like, why would you need a pic to tell?
tristan89 is offline   Reply With Quote
Old 11-22-2014, 07:21 PM   #5
sil14zenki
Zilvia Addict
 
sil14zenki's Avatar
 
Join Date: Aug 2010
Location: i'm just livin
Posts: 748
Trader Rating: (25)
sil14zenki is an unknown quantity at this point
Feedback Score: 25 reviews
compression test? does the exhuast fumes/smoke have a sweet/bitter smell to it:?
__________________
@andymcfly
sil14zenki is offline   Reply With Quote
Old 11-22-2014, 07:23 PM   #6
tristan89
Leaky Injector
 
Join Date: Jun 2014
Location: Bend Oregon
Age: 27
Posts: 82
Trader Rating: (2)
tristan89 is an unknown quantity at this point
Feedback Score: 2 reviews
It smells kinda sweet but I also run e85 so it always smells a little sweet, the oil just started getting milky after I put a thermostat in, could I have overfilled it and belw the HG?
tristan89 is offline   Reply With Quote
Old 11-22-2014, 07:53 PM   #7
sil14zenki
Zilvia Addict
 
sil14zenki's Avatar
 
Join Date: Aug 2010
Location: i'm just livin
Posts: 748
Trader Rating: (25)
sil14zenki is an unknown quantity at this point
Feedback Score: 25 reviews
E85 smells good once burned, coolant does not. Try to do a compression test. And are you having to keep adding water?
__________________
@andymcfly
sil14zenki is offline   Reply With Quote
Old 11-22-2014, 08:15 PM   #8
tristan89
Leaky Injector
 
Join Date: Jun 2014
Location: Bend Oregon
Age: 27
Posts: 82
Trader Rating: (2)
tristan89 is an unknown quantity at this point
Feedback Score: 2 reviews
I don't know I just fired it up and had it running for a few minutes and checked the oil once I noticed the white smoke
tristan89 is offline   Reply With Quote
Old 11-22-2014, 11:59 PM   #9
jr_ss
Post Whore!
 
Join Date: Dec 2005
Location: Pa
Posts: 6,409
Trader Rating: (35)
jr_ss has a reputation beyond reputejr_ss has a reputation beyond reputejr_ss has a reputation beyond reputejr_ss has a reputation beyond reputejr_ss has a reputation beyond reputejr_ss has a reputation beyond reputejr_ss has a reputation beyond reputejr_ss has a reputation beyond reputejr_ss has a reputation beyond reputejr_ss has a reputation beyond reputejr_ss has a reputation beyond repute
Feedback Score: 35 reviews
Send a message via AIM to jr_ss
Quote:
Originally Posted by tristan89 View Post
What would coolant look like, why would you need a pic to tell?
I meant oil, my bad... When was the last time you changed the oil?

Like others have said, compression test motor or get a hydrocarbon tester, that'll tell you for sure.
__________________
*My SR20VET* Does your VTC gear rattle in your S14/15 SR? PM me.
jr_ss is offline   Reply With Quote
Old 11-23-2014, 01:46 PM   #10
tristan89
Leaky Injector
 
Join Date: Jun 2014
Location: Bend Oregon
Age: 27
Posts: 82
Trader Rating: (2)
tristan89 is an unknown quantity at this point
Feedback Score: 2 reviews
Changed the oil maybe 3-4 weeks ago
tristan89 is offline   Reply With Quote
Old 11-23-2014, 01:47 PM   #11
tristan89
Leaky Injector
 
Join Date: Jun 2014
Location: Bend Oregon
Age: 27
Posts: 82
Trader Rating: (2)
tristan89 is an unknown quantity at this point
Feedback Score: 2 reviews
Also how do you post pics to this forum
tristan89 is offline   Reply With Quote
Old 11-23-2014, 03:24 PM   #12
Javi802
Zilvia Junkie
 
Javi802's Avatar
 
Join Date: Jul 2012
Location: Oklahoma
Age: 32
Posts: 472
Trader Rating: (10)
Javi802 is an unknown quantity at this point
Feedback Score: 10 reviews
You could check your coolant as well. If you take the radiator cap off is the coolant a milky color?

Should only be the color of the coolant mixture. Not milky looking.
Javi802 is offline   Reply With Quote
Old 11-23-2014, 05:22 PM   #13
97nismo
Nissanaholic!
 
97nismo's Avatar
 
Join Date: Oct 2008
Location: Asheville
Posts: 2,133
Trader Rating: (53)
97nismo is an unknown quantity at this point
Feedback Score: 53 reviews
Compression test takes 10 minutes
__________________
Feedback:
http://zilvia.net/f/itrader.php?u=78978
97nismo is offline   Reply With Quote
Old 11-23-2014, 08:46 PM   #14
tristan89
Leaky Injector
 
Join Date: Jun 2014
Location: Bend Oregon
Age: 27
Posts: 82
Trader Rating: (2)
tristan89 is an unknown quantity at this point
Feedback Score: 2 reviews
All cylinders are reading about 175ish with the engine cold
tristan89 is offline   Reply With Quote
Old 11-23-2014, 09:22 PM   #15
Javi802
Zilvia Junkie
 
Javi802's Avatar
 
Join Date: Jul 2012
Location: Oklahoma
Age: 32
Posts: 472
Trader Rating: (10)
Javi802 is an unknown quantity at this point
Feedback Score: 10 reviews
you need to test compression when the engine is at operating temp. As well as making sure the throttle is open all the way.

Is it smoking non stop? Or on a cold start only?
Javi802 is offline   Reply With Quote
Old 11-24-2014, 10:53 AM   #16
tristan89
Leaky Injector
 
Join Date: Jun 2014
Location: Bend Oregon
Age: 27
Posts: 82
Trader Rating: (2)
tristan89 is an unknown quantity at this point
Feedback Score: 2 reviews
I haven't driving it, is it okay to drive if the head gasket is blow? Because I don't want to fill my oil with coolant while driving it to see, and yes throttle is wide open
tristan89 is offline   Reply With Quote
Old 11-24-2014, 05:37 PM   #17
tristan89
Leaky Injector
 
Join Date: Jun 2014
Location: Bend Oregon
Age: 27
Posts: 82
Trader Rating: (2)
tristan89 is an unknown quantity at this point
Feedback Score: 2 reviews
So I started it and no smoke was coming out, then after a minute white smoke was coming out? Why would it do that?
tristan89 is offline   Reply With Quote
Old 11-25-2014, 06:49 AM   #18
s&tcustoms
 
s&tcustoms's Avatar
 
Join Date: Apr 2014
Location: Upstate NY
Age: 29
Posts: 20
Trader Rating: (0)
s&tcustoms is an unknown quantity at this point
Feedback Score: 0 reviews
http://www.autozone.com/loan-a-tools...er/391378_0_0/

Go to autozone and rent one of those, it tests for combustion gases in your coolant...(caused by a blown headgasket.)
s&tcustoms is offline   Reply With Quote
Old 11-25-2014, 09:01 AM   #19
97nismo
Nissanaholic!
 
97nismo's Avatar
 
Join Date: Oct 2008
Location: Asheville
Posts: 2,133
Trader Rating: (53)
97nismo is an unknown quantity at this point
Feedback Score: 53 reviews
I am not saying you did the compression test wrong but I have a had a few sr's some built some stock and I haven't had one read over 165 across all four and usually they are 150 across...
__________________
Feedback:
http://zilvia.net/f/itrader.php?u=78978
97nismo is offline   Reply With Quote
Old 11-25-2014, 10:14 AM   #20
jr_ss
Post Whore!
 
Join Date: Dec 2005
Location: Pa
Posts: 6,409
Trader Rating: (35)
jr_ss has a reputation beyond reputejr_ss has a reputation beyond reputejr_ss has a reputation beyond reputejr_ss has a reputation beyond reputejr_ss has a reputation beyond reputejr_ss has a reputation beyond reputejr_ss has a reputation beyond reputejr_ss has a reputation beyond reputejr_ss has a reputation beyond reputejr_ss has a reputation beyond reputejr_ss has a reputation beyond repute
Feedback Score: 35 reviews
Send a message via AIM to jr_ss
Quote:
Originally Posted by 97nismo View Post
I am not saying you did the compression test wrong but I have a had a few sr's some built some stock and I haven't had one read over 165 across all four and usually they are 150 across...
My SR reads over 180 across the board...

Just as I suggested and someone recently repeated, go buy a hydrocarbon test and test your coolant.
__________________
*My SR20VET* Does your VTC gear rattle in your S14/15 SR? PM me.
jr_ss is offline   Reply With Quote
Old 11-25-2014, 12:15 PM   #21
tristan89
Leaky Injector
 
Join Date: Jun 2014
Location: Bend Oregon
Age: 27
Posts: 82
Trader Rating: (2)
tristan89 is an unknown quantity at this point
Feedback Score: 2 reviews
Well the compression test was on a cold engine so it's going to read higher, I need to re do it just don't know if it's safe to drive it how it is
tristan89 is offline   Reply With Quote
Old 11-25-2014, 01:09 PM   #22
Javi802
Zilvia Junkie
 
Javi802's Avatar
 
Join Date: Jul 2012
Location: Oklahoma
Age: 32
Posts: 472
Trader Rating: (10)
Javi802 is an unknown quantity at this point
Feedback Score: 10 reviews
Maybe its actually oil that is burning?

Turbo seals shitting out...?

I don't know man
Javi802 is offline   Reply With Quote
Old 11-25-2014, 01:10 PM   #23
tristan89
Leaky Injector
 
Join Date: Jun 2014
Location: Bend Oregon
Age: 27
Posts: 82
Trader Rating: (2)
tristan89 is an unknown quantity at this point
Feedback Score: 2 reviews
Better not be the turbo! It only has 1000 miles on it!
tristan89 is offline   Reply With Quote
Old 11-25-2014, 01:16 PM   #24
Javi802
Zilvia Junkie
 
Javi802's Avatar
 
Join Date: Jul 2012
Location: Oklahoma
Age: 32
Posts: 472
Trader Rating: (10)
Javi802 is an unknown quantity at this point
Feedback Score: 10 reviews
Could be the valve cover spark plug well gaskets seeping oil into the cylinders.
Javi802 is offline   Reply With Quote
Old 11-25-2014, 01:18 PM   #25
Javi802
Zilvia Junkie
 
Javi802's Avatar
 
Join Date: Jul 2012
Location: Oklahoma
Age: 32
Posts: 472
Trader Rating: (10)
Javi802 is an unknown quantity at this point
Feedback Score: 10 reviews
Then again, the fact it didn't have a thermostat in it is kind of suspicious. Ive heard of people removing the thermostat because they were too lazy to find out why their car was overheating.

Overheating can and will cause a failed head gasket
Javi802 is offline   Reply With Quote
Old 11-25-2014, 01:39 PM   #26
tristan89
Leaky Injector
 
Join Date: Jun 2014
Location: Bend Oregon
Age: 27
Posts: 82
Trader Rating: (2)
tristan89 is an unknown quantity at this point
Feedback Score: 2 reviews
The guy I got it from lived in Vegas and said he didn't need it because it was so warm down there, I wanted to put a metal head gasket in just wasn't planning on doing it this soon haha
tristan89 is offline   Reply With Quote
Old 11-25-2014, 01:57 PM   #27
Javi802
Zilvia Junkie
 
Javi802's Avatar
 
Join Date: Jul 2012
Location: Oklahoma
Age: 32
Posts: 472
Trader Rating: (10)
Javi802 is an unknown quantity at this point
Feedback Score: 10 reviews
do a compression test with the engine at operating temp.

I would think you'd for sure have low compression if the head gasket was done for

Unless the gasket is just now starting to go..? Not sure if head gaskets can go slowly or if they just flat out fail when they do.

You can also get a head gasket leak tester as stated from someone above.
Javi802 is offline   Reply With Quote
Old 11-25-2014, 01:59 PM   #28
jr_ss
Post Whore!
 
Join Date: Dec 2005
Location: Pa
Posts: 6,409
Trader Rating: (35)
jr_ss has a reputation beyond reputejr_ss has a reputation beyond reputejr_ss has a reputation beyond reputejr_ss has a reputation beyond reputejr_ss has a reputation beyond reputejr_ss has a reputation beyond reputejr_ss has a reputation beyond reputejr_ss has a reputation beyond reputejr_ss has a reputation beyond reputejr_ss has a reputation beyond reputejr_ss has a reputation beyond repute
Feedback Score: 35 reviews
Send a message via AIM to jr_ss
Sounds like another excuse to me. Every car needs a thermostat to run properly, except say a drag car. You don't efficiently cool the engine without one. The coolant needs time to stay in the radiator to dissipate heat. Not to mention engines and their Ecus are designed to run at a specific temperature. If it's constantly running outside designed parameters it uses more fuel and is in the end less efficient. Put a thermostat back in it.
__________________
*My SR20VET* Does your VTC gear rattle in your S14/15 SR? PM me.
jr_ss is offline   Reply With Quote
Old 11-25-2014, 03:48 PM   #29
tristan89
Leaky Injector
 
Join Date: Jun 2014
Location: Bend Oregon
Age: 27
Posts: 82
Trader Rating: (2)
tristan89 is an unknown quantity at this point
Feedback Score: 2 reviews
Thermostat is in and staying in, I live where it gets below zero so I definitely need one!
tristan89 is offline   Reply With Quote
Old 11-25-2014, 04:58 PM   #30
tristan89
Leaky Injector
 
Join Date: Jun 2014
Location: Bend Oregon
Age: 27
Posts: 82
Trader Rating: (2)
tristan89 is an unknown quantity at this point
Feedback Score: 2 reviews
So I did a block test and another compression test, I got about 118 psi for all cylinders, the block test didn't do anything, the solution stayed blue the whole time, depending on when I check the oil it looks like coffe with a bunch of cream in it and other times it looks alright, I did notice some steam coming off my radiator though, and the radiator fluid is the color of rust, I use green coolant to fill it.
tristan89 is offline   Reply With Quote
Reply

Bookmarks


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -6. The time now is 08:03 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
vB.Sponsors
Copyright ? 1998 - 2022, Zilvia.net