I NEED HELP BIG TIME WITH MY 1990 SC
 

Hi i have a 1990 ford thunder bird supercoupe and the problem is that when ever i replace the radiator there was this thing that u had to unscrew i guess to let the air out of the system but when i was unsrewing it it broke off and so i just went on but now i am having problem because of that i think every time i put my radiator cap on and i drive about a mile there is always a radiator hose that pops off becuase there is so much pressure in the system but i was just wondering what i should do about that and if there is anyother way to get the air or pressure out some way

RE: I NEED HELP BIG TIME WITH MY 1990 SC
 

gotta ask what psi cap you got on that car ?????? , something dont sound rite !!!!

RE: I NEED HELP BIG TIME WITH MY 1990 SC
 

i have a 16 psi radiator cap on there now

RE: I NEED HELP BIG TIME WITH MY 1990 SC
 

16 psi , yea something dont sound right , If your using steel worm gear style clamps , an tighten them good , they will hold WAY MORE then 16 psi,,, { We had a wash bay for heavy equipment at one place I worked it had a 4" hose with a working pressure of 45psi , we had reg. ole hose clamps on it , they held fine } ,, And ask anyone here that is a TECH. An they will tell you , at one point We have had to use a hose clamp on the air line fitting, for shop air , We ran ours at 150 psi . ,,,,, So not seeing the car , make sure you got all the clamps tight , put the clamp up past the thicker ridge on the tube/ nipple etc that the hose slids over , that helps the clamp seal an stay in place . To remove the air , , , you can allways pull the heater hose off as you fill the engine that should expel any air in the system as you fill the RAD. once it starts pouring out the heater hose you know the block is full , add coolant till its roughly at least 80% in Rad. install cap , start car run it at 2000rpm for 3-4 minutes, watch your gauge. shut car off , LET IT COOL !!!!!, then remove the cap an top system off,,,,, Iam just hoping you havent cracked a head an its pumping Engine Compression onto the Rad. an thats whats going on ,, Have you pulled the dip stick on the engine an looked at the oil to see if its milky , or way over full ???? , Let us know what you find , Good Luck ...

RE: I NEED HELP BIG TIME WITH MY 1990 SC
 

one other way to relieve air in the system is to put your heat wide open and on defrost if you have air in the system you will not get hot air.when the air leaves the hot air will follow.

RE: I NEED HELP BIG TIME WITH MY 1990 SC
 

ok i have figured out that its not the clamps because when i first did it before i had to replace the first hose the hose busted split open so this is really weird but i just bought a new thermostat today to see if that is it and the guy i bought it from said that he had just put a new radiator in there but it has been sitting for a little while tho so i dont know weather it could be the thermostat or not.:(

RE: I NEED HELP BIG TIME WITH MY 1990 SC
 

oh yea the oil looks fine tho
:D

RE: I NEED HELP BIG TIME WITH MY 1990 SC
 

Not to be stupid but it sounds like you broke the petcock off. Where is the thing you had to unscrew but brokelocated exactly?

RE: I NEED HELP BIG TIME WITH MY 1990 SC
 

So was it overheating to begin with? Is that why the thermostat was replaced? Sounfs ot me like the head gasket is toast. Does not have to get water in oil. With supercharger your cylinder pressures are much higher, and the 3.8's already had problems to begin with in stock no S/C cars.