Sr20det coolant Leak! Help ! - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

NismoS14a · 10-23-2012, 02:17 PM

Hi, i'm new here so imma post my problem...

All engines coolant is leaking from a bolt, which bolts the lower inlet manifold to the cylinder head.. whats the most probability?

Cracked cylinder head, cracked inlet or worn gasket? i am really hoping it's not a cracked cylinder head

i really have no idea how it happened

Kaifd3s · 10-23-2012, 02:19 PM

Pic please.

NismoS14a · 10-23-2012, 02:20 PM

i do not have a picture of coolant leaking from the bolt.. but i can tell u it's a lower bolt of lower inlet manifold.. water is coming from behind the washer

NismoS14a · 10-23-2012, 02:37 PM

it can barely be seen, the bolt goes exactly over those 2 hose pipes under the lower inlet manifold...

what i was gonna try to do was change the bolt 1st see what happens, next remove both upper and lower inlet manifold, ( check for gasket or cracked manifold ) if i find nothing i will have to remove engine to check for a crack in the cylinder head..

(

Any expert ideas would be great, thanks

Mikester · 10-23-2012, 03:56 PM

Is it closer to the front? If so, there is a water jacket under there that one of those hoses connect to. The sealant might have gave out. Not easy to get to with the intake in the way if it's the stock intake.

Hashiriya415 · 10-23-2012, 04:00 PM

typing about it on forums and taking pictures. Hoping someone guesses correctly WON'T FIX IT. Start taking it apart and see what the problem is.

Mikester · 10-23-2012, 05:02 PM

Quote:

Originally Posted by Hashiriya415

typing about it on forums and taking pictures. Hoping someone guesses correctly WON'T FIX IT. Start taking it apart and see what the problem is.

Is that you Wes?

NismoS14a · 10-23-2012, 10:26 PM

Yes when I have time I will try to take the whole intake manifold out and see what happens, probably leak will come out from the hole where the bolt goes in , will keep u updated

Btw mine is a stock intake, and looking to change it, from where can I find 1? If u got a link pls post me 1 thanks

Hashiriya415 · 10-24-2012, 05:11 AM

No need to change it unless you have bigger cams, turbo, injectors, tune.

Hashiriya415 · 10-24-2012, 05:12 AM

Quote:

Originally Posted by Mikester

Is that you Wes?

Nope, I'm not Wes

NismoS14a · 10-24-2012, 07:52 AM

I got standard cams and turbo, but pistons cp, 550cc injectors fc power commander stainless exhaust and tuned , 325bhp s14 so a new Inlet manifold would be nice hehe

10-23-2012, 02:17 PM	#1
NismoS14a Join Date: Oct 2012 Location: Malta Age: 35 Posts: 10 Trader Rating: (0) Feedback Score: 0 reviews	Sr20det coolant Leak! Help ! Hi, i'm new here so imma post my problem... All engines coolant is leaking from a bolt, which bolts the lower inlet manifold to the cylinder head.. whats the most probability? Cracked cylinder head, cracked inlet or worn gasket? i am really hoping it's not a cracked cylinder head i really have no idea how it happened

10-23-2012, 02:19 PM	#2
Kaifd3s Zilvia Addict Join Date: Feb 2008 Location: Tamarac, Florida Age: 39 Posts: 694 Trader Rating: (16) Feedback Score: 16 reviews	Pic please. __________________

10-23-2012, 03:56 PM	#5
Mikester Nissanaholic! Join Date: Jun 2007 Location: Kathleen, GA Age: 53 Posts: 1,956 Trader Rating: (0) Feedback Score: 0 reviews	Is it closer to the front? If so, there is a water jacket under there that one of those hoses connect to. The sealant might have gave out. Not easy to get to with the intake in the way if it's the stock intake. __________________

10-23-2012, 02:20 PM	#3
NismoS14a Join Date: Oct 2012 Location: Malta Age: 35 Posts: 10 Trader Rating: (0) Feedback Score: 0 reviews	i do not have a picture of coolant leaking from the bolt.. but i can tell u it's a lower bolt of lower inlet manifold.. water is coming from behind the washer

10-23-2012, 02:37 PM	#4
NismoS14a Join Date: Oct 2012 Location: Malta Age: 35 Posts: 10 Trader Rating: (0) Feedback Score: 0 reviews	it can barely be seen, the bolt goes exactly over those 2 hose pipes under the lower inlet manifold... what i was gonna try to do was change the bolt 1st see what happens, next remove both upper and lower inlet manifold, ( check for gasket or cracked manifold ) if i find nothing i will have to remove engine to check for a crack in the cylinder head.. ( Any expert ideas would be great, thanks

10-23-2012, 04:00 PM	#6
Hashiriya415 Zilvia FREAK! Join Date: Jun 2007 Location: San Francisco Age: 37 Posts: 1,007 Trader Rating: (22) Feedback Score: 22 reviews	typing about it on forums and taking pictures. Hoping someone guesses correctly WON'T FIX IT. Start taking it apart and see what the problem is.

10-23-2012, 10:26 PM	#8
NismoS14a Join Date: Oct 2012 Location: Malta Age: 35 Posts: 10 Trader Rating: (0) Feedback Score: 0 reviews	Yes when I have time I will try to take the whole intake manifold out and see what happens, probably leak will come out from the hole where the bolt goes in , will keep u updated Btw mine is a stock intake, and looking to change it, from where can I find 1? If u got a link pls post me 1 thanks

10-24-2012, 05:11 AM	#9
Hashiriya415 Zilvia FREAK! Join Date: Jun 2007 Location: San Francisco Age: 37 Posts: 1,007 Trader Rating: (22) Feedback Score: 22 reviews	No need to change it unless you have bigger cams, turbo, injectors, tune.

10-24-2012, 07:52 AM	#11
NismoS14a Join Date: Oct 2012 Location: Malta Age: 35 Posts: 10 Trader Rating: (0) Feedback Score: 0 reviews	I got standard cams and turbo, but pistons cp, 550cc injectors fc power commander stainless exhaust and tuned , 325bhp s14 so a new Inlet manifold would be nice hehe