help please (radiator)

so im back for more help, thanks in advance! the story goes like this.. i keep blowing radiator hoses off. 1. checked thermastat ... stuck and removed.
2. my hoses are those flex hoses with 3 inch rubber at the tips (i know these suck and will be removed as soon possible)

so if i have no thermastat and the water is running freely why do i keep poppin hoses off. i just ran the car up to about 120 degrees(which is not really all that hot) and it popped.!!!!

question why is it building up so much pressure????

thanks
larry

 

what kind of car ? How are you connecting the hoses to the rad or engine? What moter?

 

51 chevy

350 73 vette motor

standard hose clamps

 

What radiator? Where is it poping loose?

 

I am not sure about the radiator hoses. what type/size of clamps? are they blowing at the radiator or the engine? Are the ends of what you are connecting the hoses to expanded so that when the hose is tightened, it can't slip off?

FYI - If you don't use a thermostat, you should use a restrictor in it's place. The coolant system was designed to have some restriction there to keep the coolant from flowing too fast through the system. Lack of said restrictor can cause overheating.

 

If your sections the rubber hose slips over do not have a "hump" or protrusion then I say expect to continue this trend. IF they do then it suggests you have LOTS of pressure - faulty radiator cap. They make a radiator/cap checker - maybe ask around and see if a buddy has one you can borrow.

 

here's a slippery slope of a question for you.

is it possible or plausible for a headgasket leak to be pushing compression into the coolant? probably not but the glass is half empty and anything's possible

my guess would be something clogging the system like perhaps a rag stuffed in somewhere to hold out dirt and then accidentally forgotten.

i've heard that if you mix red and green antifreeze it turns to some sort of foamy goop that can clog your radiator and engine. but i haven't "seen" proof (and i'm not trying it in my car)

have you tried to change your radiator cap?

i guess something is plugged up

 

Okay, I see the pic. Are they slipping off of the coolflex or the thermostat housing/radiator, and do those rubber connectors have smaller adaptor rings inside them?

 

sorry dont the name of the rad..its a alluminum with a fan on the inside, cant rember nameDUH!!!!!

and she will pop a hose anywhere and anyone shes not picky

 

clamps and everything should be good?!!?? i am having them replaced just cant get there .... and the thermastat removal is just a temp situation to get a little further down the road.

 

cool, never checked to see if a hump is there or not. when i replace these hoses they will for sure

 

good thoughts. it would be my style to leave a rag in a plugged up hole!! good thing im not a surgen. i will check the cap

 

The rad cap should blow off pressure before the hoses come off. Do you have a recovery tank or is it a total loss system? Do you know th pressure on the cap ususually its around 13-16 lbs. If you know anyone with a rad tester they can pressure test your cap or just pick up another one they are cheap. Then check the over flow tube fo restrictions.

 

the thermastat and the other connections. they never come off the flex tube. no to the adaptor rings.

 

im gonna give the big WTF!?!? im as green as broccoli when it comes to this.

recovery tank??????

pressure????

over flow tube ?? which one is that??

 

it seems as if i should start with new hoses and a new cap.. i will take it from there and see what happens. you may here from me again. hopefully not on this issue


BIG thanks to all you guys who throw me support while i learn my way around this car. THANKS AGAIN you guys rock


larry

 

Sorry I didnt mean to go over your head. On the radiator where the cap goes on there is a tube sticking out the side under the edge of the cap. Does this have a hose on it and does it leak water before the hoses pop? If you have this plugged it will not allow the radiator to equalize pressure.

 

By overflow tube he means you should have a small tube exiting the filler neck just under the radiator cap. That tube can just exit toward the ground (total loss) or into an overflow or recovery tank.

 

I had a similar problem on the water pump caused by new paint making the surface too slick. When the cooling system pressured up off came the lower hose. Roughed up the area and no luck and it even had the hump on the end of the outlet to help hold it. Everything in the cooling system and on the engine checked ok so I put double clamps on the hose and solved the problem.

 

it has a hose and a tank that it goes to this is it...but then it runs to the engine withanother thermastat gauge on it, i will post pic

 

heres the gauge dealy-o

 

Your pic is too small to see properly but I trhink we may have found the problem

 

dont leave me hangin!!!!!!! welll?????????

 

I am having AOL issues sorry. Take the hose under the cap off and try to blow through it. I cant see a vent in the over flow tank, could just be the pic.

 

Can you post a bigger pic of where that overflow line goes to on the engine. That's not right. That shouldn't be going to the engine.

 

well like i said im GREEN that hose is not going to the engine!!!!!! dont know wht i was thinking, a little jumpy on the deal sorry for wasting your time on that part.
larry

 

i just took the hose off and there is no obstruction. but as far as a vent?? dont see one. it hooks straight to the rad to the tank.


where doses that water go? is there a drain under the tank??

 

cant rember if i said this or not. but at the head where the thermastat is housed im having problems getting a good seal there. could that be building up the presure? and it always blows off the engine side now that i think about it.

 

You can blow through the tank? take the cap off and check the rad tube for a problem I have seen them pluged with slag from brazing them on.

 

if i pour water into the tank should it drain on the bottom???