cooling issues

superbean · July 31st, 2009, 10:47 PM

I just got done doing a p head swap and i'm having cooling issues..

I started the car up with the cap off and topped it off and kept adding coolant until it started comming out the top. Put the cap on and it would stay at about 160 deg for about five minutes then it would climb quickly to 270/overheating.

Where do I go from here?

superbean · July 31st, 2009, 11:45 PM

help! LOL

fateisajester · August 2nd, 2009, 07:40 PM

it probably an air pocket. you're going to have to burp it. top off your radiator, run the car with the cap off, turn your heater on if you have one. when the car starts to warm up keep the your garden hose in the radiator and let it keep running until it stops "burping". if it starts to get too hot, stop, put the cap back on and wait for it to cool back down. start the process all over again. once you're done use the drain plug on the radiator to let some water out and add coolant. you want full strength for this part because its going to get diluted in your system. then run the engine for a while for everything to mix well, test the coolant in your system. if its too rich, drain and add more water. too diluted, drain and add more coolant

Lefty · August 2nd, 2009, 08:01 PM

Most likely air bubble in the system. Definatley try burping the system some more.

superbean · August 2nd, 2009, 11:21 PM

To follow up:

That's exactly what it was guys. I ran it some more with the cap off, parked it on a slight hill to help ease the air out. Put a new t stat and cap on, voila, it stays at 170 deg all day!

fateisajester · August 3rd, 2009, 12:53 AM

Originally Posted by superbean

To follow up:

That's exactly what it was guys. I ran it some more with the cap off, parked it on a slight hill to help ease the air out. Put a new t stat and cap on, voila, it stays at 170 deg all day!

glad to help

1989Gt. · August 3rd, 2009, 03:43 AM

how do you like the heads man?

93hatch · August 3rd, 2009, 11:56 AM

Originally Posted by 1989Gt.

how do you like head man?

coughyoulikeguyscough

superbean · August 3rd, 2009, 01:26 PM

sucky sucky fife dollah.

The engine feels solid. Still can't drive it hard as I have a massive collector leak and im sure the oxygen sensor is like WTFFFFFF

e3sean · August 3rd, 2009, 01:33 PM

i bet you had the thermastat in backwards.

superbean · August 3rd, 2009, 01:35 PM

Originally Posted by e3sean

i bet you had the thermastat in backwards.

That's the first thing I checked, it was in correctly.

I'm thinking the overheating was caused by a bad cap, because i stole the one off my drag car and put it on the black one, and visa versa.. drove the drag car around and got up to 220 deg pretty damn fast.. faster than it used to.

July 31st, 2009, 10:47 PM	#1
superbean Hardcore Enthusiast 1998 Cobra 13.24@105.66 Join Date: Aug 2008 Location: North Carolina Posts: 1,778 iTrader: 0 reviews	cooling issues I just got done doing a p head swap and i'm having cooling issues.. I started the car up with the cap off and topped it off and kept adding coolant until it started comming out the top. Put the cap on and it would stay at about 160 deg for about five minutes then it would climb quickly to 270/overheating. Where do I go from here? __________________ weeee foooord!

July 31st, 2009, 11:45 PM	#2
superbean Hardcore Enthusiast 1998 Cobra 13.24@105.66 Join Date: Aug 2008 Location: North Carolina Posts: 1,778 iTrader: 0 reviews	help! LOL __________________ weeee foooord!

August 2nd, 2009, 07:40 PM	#3
fateisajester Regular 1989 Ford Mustang 3 mins Join Date: Sep 2008 Location: Orlando, FL Posts: 378 iTrader: 0 reviews	it probably an air pocket. you're going to have to burp it. top off your radiator, run the car with the cap off, turn your heater on if you have one. when the car starts to warm up keep the your garden hose in the radiator and let it keep running until it stops "burping". if it starts to get too hot, stop, put the cap back on and wait for it to cool back down. start the process all over again. once you're done use the drain plug on the radiator to let some water out and add coolant. you want full strength for this part because its going to get diluted in your system. then run the engine for a while for everything to mix well, test the coolant in your system. if its too rich, drain and add more water. too diluted, drain and add more coolant __________________

August 2nd, 2009, 08:01 PM	#4
Lefty Resident DJ '01 Cobra Vert. Join Date: Jun 2007 Location: Mechanicsburg, PA Posts: 28,699 iTrader: 12 reviews	Most likely air bubble in the system. Definatley try burping the system some more. __________________ 2008 Acura TL Type-S (the daily) 2006 Yamaha R6 50th Anniversary Edition (the other toy)

August 2nd, 2009, 11:21 PM	#5
superbean Hardcore Enthusiast 1998 Cobra 13.24@105.66 Join Date: Aug 2008 Location: North Carolina Posts: 1,778 iTrader: 0 reviews	To follow up: That's exactly what it was guys. I ran it some more with the cap off, parked it on a slight hill to help ease the air out. Put a new t stat and cap on, voila, it stays at 170 deg all day! __________________ weeee foooord!

August 3rd, 2009, 03:43 AM	#7
1989Gt. Hardcore Enthusiast 1989 Mustang GT Join Date: Apr 2008 Posts: 2,797 iTrader: 0 reviews	how do you like the heads man?

August 3rd, 2009, 01:26 PM	#9
superbean Hardcore Enthusiast 1998 Cobra 13.24@105.66 Join Date: Aug 2008 Location: North Carolina Posts: 1,778 iTrader: 0 reviews	sucky sucky fife dollah. The engine feels solid. Still can't drive it hard as I have a massive collector leak and im sure the oxygen sensor is like WTFFFFFF __________________ weeee foooord!

August 3rd, 2009, 01:33 PM	#10
e3sean I Post Entirely Way Too Much 1988 lx 9.68@142 Join Date: Nov 2007 Location: goldsboro NC Posts: 5,609 iTrader: 0 reviews	i bet you had the thermastat in backwards. __________________

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