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

Speedy86 · 01-12-2014, 08:38 PM

need some help with this s14. my cousin picked it up cheap from a elderly couple who had it sitting for atleast a year. driving it home the radiator had a sealed crack that didnt hold and it blew so we towed it home my question is the car should still start even with a blown radiator it should just over heat really fast but the car wont start? it turns over... check the spark plugs and replaced them. funny thing is when i crank the engine the water just shoots out of the crack if im not mistaken the radiator should not have that much pressure should it?

Update radiator fixed
Fuel pump good
Car turns over but won't start
No spark to one cyl.

smoked240 · 01-12-2014, 09:29 PM

Most cooling systems see about 16psi at most. It doesn't seem like a lot of pressure but if you open the cap at full temp and pressure you'll change your perspective on it in a heartbeat lol.
With a coolant leak or blown water pump belt I wouldn't run the engine for more then a couple minutes.

Speedy86 · 01-12-2014, 09:36 PM

yea i really just want it to turn on to get it up my drive way

didnt want to replace the radiatior on the side of the street. and pushing the car up a decent incline didnt seem fun either.

right now im just thinking that even after the radiator is replaced its not going to turn on.
peaked inside the head and didnt see coolant in the combustion chamber or inside the coolant tank or oil pan. so im not thinking blown headgasket either.

smoked240 · 01-13-2014, 01:22 PM

Oh yeah you'll have enough time to get it up the driveway. After starting it I would shut it down within 5 minutes and you should be fine. Did you check for fuel and spark? There has to be another reason it's not starting

Speedy86 · 01-14-2014, 01:51 PM

radiator is fixed
fuel pump and filter are good

means its has to be something in the ignition part checking it tonight didnt have a second person to help me crank the car right now.

Speedy86 · 01-15-2014, 08:44 AM

Update
Checked for spark cyl.4 has no spark when tested.
Debating to remove distributor and having it checked at the parts store or just replacing the wires and rotor cap.
Input anyone?

Kingtal0n · 01-15-2014, 10:08 PM

Start with a tune up.

Speedy86 · 01-17-2014, 06:33 PM

sooooooo checked everything over again because it wasnt making sense.
HEAD GASKET IS BLOWN

cyl 2/4 completely flooded with coolant
lol live and learn

01-12-2014, 08:38 PM	#1
Speedy86 Join Date: Jan 2014 Location: SATX Age: 32 Posts: 12 Trader Rating: (0) Feedback Score: 0 reviews	No spark cyl. #4 need some help with this s14. my cousin picked it up cheap from a elderly couple who had it sitting for atleast a year. driving it home the radiator had a sealed crack that didnt hold and it blew so we towed it home my question is the car should still start even with a blown radiator it should just over heat really fast but the car wont start? it turns over... check the spark plugs and replaced them. funny thing is when i crank the engine the water just shoots out of the crack if im not mistaken the radiator should not have that much pressure should it? Update radiator fixed Fuel pump good Car turns over but won't start No spark to one cyl. Last edited by Speedy86; 01-15-2014 at 08:46 AM..

01-12-2014, 09:29 PM	#2
smoked240 Zilvia FREAK! Join Date: Jun 2010 Location: North Dakota Age: 30 Posts: 1,066 Trader Rating: (4) Feedback Score: 4 reviews	Most cooling systems see about 16psi at most. It doesn't seem like a lot of pressure but if you open the cap at full temp and pressure you'll change your perspective on it in a heartbeat lol. With a coolant leak or blown water pump belt I wouldn't run the engine for more then a couple minutes. __________________

01-13-2014, 01:22 PM	#4
smoked240 Zilvia FREAK! Join Date: Jun 2010 Location: North Dakota Age: 30 Posts: 1,066 Trader Rating: (4) Feedback Score: 4 reviews	Oh yeah you'll have enough time to get it up the driveway. After starting it I would shut it down within 5 minutes and you should be fine. Did you check for fuel and spark? There has to be another reason it's not starting __________________

01-15-2014, 10:08 PM	#7
Kingtal0n Post Whore! Join Date: Jul 2005 Location: South Florida Age: 38 Posts: 4,649 Trader Rating: (17) Feedback Score: 17 reviews	Start with a tune up. __________________ 5.3/4l80e/turbo 240sx playthrough: https://tinyurl.com/turbo240

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01-12-2014, 09:36 PM	#3
Speedy86 Join Date: Jan 2014 Location: SATX Age: 32 Posts: 12 Trader Rating: (0) Feedback Score: 0 reviews	yea i really just want it to turn on to get it up my drive way didnt want to replace the radiatior on the side of the street. and pushing the car up a decent incline didnt seem fun either. right now im just thinking that even after the radiator is replaced its not going to turn on. peaked inside the head and didnt see coolant in the combustion chamber or inside the coolant tank or oil pan. so im not thinking blown headgasket either.

01-14-2014, 01:51 PM	#5
Speedy86 Join Date: Jan 2014 Location: SATX Age: 32 Posts: 12 Trader Rating: (0) Feedback Score: 0 reviews	radiator is fixed fuel pump and filter are good means its has to be something in the ignition part checking it tonight didnt have a second person to help me crank the car right now.

01-15-2014, 08:44 AM	#6
Speedy86 Join Date: Jan 2014 Location: SATX Age: 32 Posts: 12 Trader Rating: (0) Feedback Score: 0 reviews	Update Checked for spark cyl.4 has no spark when tested. Debating to remove distributor and having it checked at the parts store or just replacing the wires and rotor cap. Input anyone?

01-17-2014, 06:33 PM	#8
Speedy86 Join Date: Jan 2014 Location: SATX Age: 32 Posts: 12 Trader Rating: (0) Feedback Score: 0 reviews	sooooooo checked everything over again because it wasnt making sense. HEAD GASKET IS BLOWN cyl 2/4 completely flooded with coolant lol live and learn