high coolant psi =[ - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


Engine Performance This section is for discussion on all engine building related questions.
Sponsored by:
Sponsored by:

Reply
 
 
 
LinkBack Thread Tools Search this Thread
Old 10-15-2009, 11:27 AM   #1
Senior Member
Thread Starter
 
Join Date: Aug 2009
Location: MONROE CT
Posts: 1,100
Total Cats: 2
Default high coolant psi =[

I got about 2000miles on my new motor and the other day it started to shoot coolant from the radiator to the res then out the res. I replaced the radiator cap and i ran the car with out the thermostat to see if the new one that was in there was bad but it still dose the same thing. what do i do to fix this????
miatamike203 is offline   Reply With Quote
Old 10-15-2009, 11:42 AM   #2
Elite Member
 
Join Date: Jul 2005
Posts: 6,454
Total Cats: 80
Default

You need a new rad cap not a t-stat.
JasonC SBB is offline   Reply With Quote
Old 10-15-2009, 11:46 AM   #3
Senior Member
Thread Starter
 
Join Date: Aug 2009
Location: MONROE CT
Posts: 1,100
Total Cats: 2
Default

Quote:
Originally Posted by JasonC SBB View Post
You need a new rad cap not a t-stat.
I replaced it last night and i took the thermostat out and it still dose the same thing. the cap is a 16psi cap.
miatamike203 is offline   Reply With Quote
Old 10-15-2009, 11:59 AM   #4
Elite Member
iTrader: (17)
 
Join Date: Aug 2007
Location: Fort Myers, FL
Posts: 2,790
Total Cats: 128
Default

Hopefully it's not the same issue, but certainly sounds like the same thing mine was doing: https://www.miataturbo.net/forum/t39992/

Blown headgasket between around cylinders 2 and 3 was blowing air into my cooling system and forcing all the water out. As soon as I'd crank the car it would just start pissing water into the overflow tank. GL.
pdexta is offline   Reply With Quote
Old 10-15-2009, 12:14 PM   #5
Senior Member
Thread Starter
 
Join Date: Aug 2009
Location: MONROE CT
Posts: 1,100
Total Cats: 2
Default

Quote:
Originally Posted by pdexta View Post
Hopefully it's not the same issue, but certainly sounds like the same thing mine was doing: https://www.miataturbo.net/forum/t39992/

Blown headgasket between around cylinders 2 and 3 was blowing air into my cooling system and forcing all the water out. As soon as I'd crank the car it would just start pissing water into the overflow tank. GL.
Thats sorta what mine is doing but it seams to only do it once its warmed up. Im hoping if i RE-TQ the head studs it will go away.
miatamike203 is offline   Reply With Quote
Old 10-15-2009, 01:15 PM   #6
Former Vendor
 
Join Date: Jun 2006
Location: Bell Tuning & Performance
Posts: 1,338
Total Cats: -78
Default

Could be a blockage in the radiator. Mine had one and would regurgitate coolant out the reservoir. Do you have a coolant re-route on the car?
Stephanie
Stephanie Turner is offline   Reply With Quote
Old 10-15-2009, 01:22 PM   #7
Senior Member
Thread Starter
 
Join Date: Aug 2009
Location: MONROE CT
Posts: 1,100
Total Cats: 2
Default

Quote:
Originally Posted by Stephanie Turner View Post
Could be a blockage in the radiator. Mine had one and would regurgitate coolant out the reservoir. Do you have a coolant re-route on the car?
Stephanie
No i dont but i do have a full aluminum one that's 2 times as wide as the old one. It has about 3000miles on it.
miatamike203 is offline   Reply With Quote
Old 10-15-2009, 03:41 PM   #8
Moderator
iTrader: (11)
 
sixshooter's Avatar
 
Join Date: Nov 2008
Location: Tampa, Florida
Posts: 15,653
Total Cats: 1,559
Default

Time for a compression test...

I'm in for the HG.
sixshooter is offline   Reply With Quote
Old 10-15-2009, 04:11 PM   #9
Elite Member
iTrader: (2)
 
miata2fast's Avatar
 
Join Date: Aug 2009
Location: Dover, FL
Posts: 2,895
Total Cats: 109
Default

+2 on head gasket. If it is blown, it is too late. Retorquing will do you no good. Is there steam coming from the tailpipe?

However, it may have rust in the bottom of the radiator. It happened to me. Is the fluid rusty colored?

To fix the problem, I ran the waterpump (electiric on my car) with the drain open, and a water hose forcing into the radiator. The preasure from the hose pushed all of the garbage that was in my radiator core out of the drain hole. Try it with the car off, and then try it with the car running (engine cool) with the thermostat out. Then with the car not running again.

Careful about cold water in hot engine. If you pump cold water into a cold engine when it is running, you will not have a problem pumping water into it following engine shut off. It could be a problem if it sat and the block started to heat the water. Continue until the water is clear.

This happened to me last week, and it is fresh in my mind. My car ran cool ever since.
miata2fast is offline   Reply With Quote
Old 10-15-2009, 04:14 PM   #10
I'm Miserable!
iTrader: (33)
 
Join Date: Jan 2009
Location: San Jose, CA
Posts: 1,066
Total Cats: -3
Default

he says its a new motor and new Radiator.

What head bolts did you use? old OEM, new OEM or ARP?
what did you torque bolts to?
railz is offline   Reply With Quote
Old 10-15-2009, 07:20 PM   #11
Elite Member
iTrader: (12)
 
Join Date: Sep 2007
Location: Charlotte, NC
Posts: 6,868
Total Cats: 66
Default

You'll be fine if you add some Liquid Head Gasket into your oil.
MT member Mouglie can attest to this.
Doppelgänger is offline   Reply With Quote
Old 10-15-2009, 09:41 PM   #12
Senior Member
Thread Starter
 
Join Date: Aug 2009
Location: MONROE CT
Posts: 1,100
Total Cats: 2
Default

Quote:
Originally Posted by sixshooter View Post
Time for a compression test...

I'm in for the HG.
i did it and i got 170psi from 1 to 4.
Quote:
Originally Posted by miata2fast View Post
+2 on head gasket. If it is blown, it is too late. Retorquing will do you no good. Is there steam coming from the tailpipe?

However, it may have rust in the bottom of the radiator. It happened to me. Is the fluid rusty colored?
I RE-TQ it and it stopped also i have an aluminum radiator nor rust here.

Quote:
Originally Posted by railz View Post
he says its a new motor and new Radiator.

What head bolts did you use? old OEM, new OEM or ARP?
what did you torque bolts to?
ARP 70ftlb but i went to 75 today and now the problem is fixed
Quote:
Originally Posted by Doppelgänger View Post
You'll be fine if you add some Liquid Head Gasket into your oil.
MT member Mouglie can attest to this.
RE-TQ fixed it went to 75fylb of TQ and no more problem
miatamike203 is offline   Reply With Quote
Old 10-16-2009, 09:18 AM   #13
Elite Member
iTrader: (2)
 
miata2fast's Avatar
 
Join Date: Aug 2009
Location: Dover, FL
Posts: 2,895
Total Cats: 109
Default

Well I'll be damned. That suprises me.

Keep us posted on how long it lasts. I thought that once air and water passes under a head gasket, it would be long gone.
miata2fast is offline   Reply With Quote
Old 10-16-2009, 08:48 PM   #14
Senior Member
Thread Starter
 
Join Date: Aug 2009
Location: MONROE CT
Posts: 1,100
Total Cats: 2
Default

well time to pull the head and get a new HG, i was in the lot at work warming it up and it started to over heat so i said wtf and now will pull the head tomorrow.
miatamike203 is offline   Reply With Quote
Old 10-16-2009, 09:13 PM   #15
Elite Member
iTrader: (1)
 
NA6C-Guy's Avatar
 
Join Date: Feb 2008
Location: Birmingham Alabama
Posts: 8,038
Total Cats: 43
Default

Once they go they are gone. Hot gases will make a small path in the gasket and even tightening it will not close it up. Fel-Pro gaskets are cheap though, any local part store should have one for under $50.
NA6C-Guy is offline   Reply With Quote
Old 10-17-2009, 08:12 PM   #16
Senior Member
Thread Starter
 
Join Date: Aug 2009
Location: MONROE CT
Posts: 1,100
Total Cats: 2
Default

Quote:
Originally Posted by NA6C-Guy View Post
Once they go they are gone. Hot gases will make a small path in the gasket and even tightening it will not close it up. Fel-Pro gaskets are cheap though, any local part store should have one for under $50.
yaa i wish the felpro gasket was that cheap here it was 70 even with my whole sale discount .
miatamike203 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Project Gemini - Turbo Civic on the Cheap Full_Tilt_Boogie Build Threads 57 07-19-2017 05:11 PM
My solution for Oiltemp and Oilpressure input into Megasuirt (MS3) Zaphod MEGAsquirt 41 01-24-2016 01:25 PM
MSPNPPro-MM0105: Coolant Temperature Output slomiata MEGAsquirt 5 10-07-2015 02:11 PM
Bad head gasket or ? shooterschmidty Engine Performance 8 09-30-2015 11:28 PM
01-05 Fab9 PNP COPs (used) FrankB Miata parts for sale/trade 6 09-30-2015 12:48 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 10:45 PM.