coolant problem

[bluidvl]

i am new to site.i have a 90lx coup converted to 5.0 car has a 75mm throtal body and 75mm mass air sensor 1"5/8 headers equeal lenth and mac cats.my problem is i keep spitting coolant out at cap what is the proper level the overflow is always full

 

[Killer50stang]

i am new to site.i have a 90lx coup converted to 5.0 car has a 75mm throtal body and 75mm mass air sensor 1"5/8 headers equeal lenth and mac cats.my problem is i keep spitting coolant out at cap what is the proper level the overflow is always full

You're overheating! What's your temp gauge say? You want to be around 180-190 degrees. Is this a stock gauge? How old is the water pump? Radiator? Is your fan working? I'll need more info. to help.

-Poth

 

[ss93cobra]

Or perhaps the radiator cap is bad and needs to be replaced...

 

[5.02GO]

Cap

 

[bluidvl]

new water pump , flex fan .it has a 16psi cap

 

[bluidvl]

temp gaufe stays about halfway it is stock

 

[Killer50stang]

temp gaufe stays about halfway it is stock

I would replace the cap and see what happens. They go bad, but as long as you're not overheating, shouldn't be too big of a problem.

 

[vristang]

temp gaufe stays about halfway it is stock

Temp wise that is right where you want to be. Temps below 190 can cause increased cylinder wear.

I stay around 200 - 220F.

Sounds like the cap is bad

 

[bluidvl]

coolant

thanx for the input guys replaced the cap and watched it turns out i had a lot of air in the system but bled it all out .the leak was in the line comeing from the overflow .fixed it

 

[Killer50stang]

Temp wise that is right where you want to be. Temps below 190 can cause increased cylinder wear.

I stay around 200 - 220F.

Sounds like the cap is bad

220? You're nearly boiling over at that temp...

 

[DMAN302]

220? You're nearly boiling over at that temp...

Though 220 is a little high it's not critical just yet, I would not want to see it very often but not considered overheating yet.

 

[Killer50stang]

Though 220 is a little high it's not critical just yet, I would not want to see it very often but not considered overheating yet.

true, but usually when I've seen 220, it doesn't stop there...

 

[DMAN302]

Oh that can be very true..you really do start to fixate on the gauges when you in that area. I will admit I would be looking to shut her down at 220 with aluminum heads..just in case.

 

[Killer50stang]

Oh that can be very true..you really do start to fixate on the gauges when you in that area. I will admit I would be looking to shut her down at 220 with aluminum heads..just in case.

yeah, I had aluminum heads on mine when mine was running hot...I was affraid of a warpped head. Now I'm running TWO electric fans. One in front of my radiator and one on the back. Those ZIRGO fans on ebay are amazing!!