Friday, June 3, 2011

New radiator hose leaking at clamps...?

I have a 2001 Mitsubishi Eclipse GS and just changed out the radiator hoses and put clamps on. The hoses are made for my car and are from OBX Racing, and the clamps are the kind you tighten with a socket or screwdriver. The first week it seemed ok, but the other day I noticed all hoses are leaking because it seems the clamps aren%26#039;t tight enough. I tightened as tight as they%26#039;ll go, to the point of actually pulling one apart from over tightening, but it%26#039;s still leaking.





I%26#039;m wondering if it%26#039;s the clamps, or another problem. What about using stop leak additive for my radiator or trying some heavy duty wire hose clamps like on tractors? Any help would be appreciated. Thank you.|||The screw type clamps are great. when changing hoses the clamps are supposed to be retightened after warming the car to operating temperature. Also buy the good screw type hose clamps there are some cheapies out there.|||well has your car been over heating or actting funny , i and it would not do any if you put and additive because thoes are part that would not be boun togetther but you might try taking off the hose check for any dirt or damage to them or to the your ends .good luck|||Take the hose off, sand the metal, and put the hose back on. The only other thing I can think of is that the clamp is too large, and you are tightening it until it reaches the end of its travel range, but it is still not tight enough. I would not put any of that junk in your radiator.|||was there any crud on the places you hooked the hose too? i am not familiar with the brand is it a harder rubber or something?i think if the clamp is starting to come apart that it will have to be replaced anyway. i wonder if some of the spring type constant pressure clamps may work better? did the clamps come with the hose? good luck getting it sorted out.|||clamps will leak if over tightened. Reason being is all parts have a torque specification, you tighten the clamp and the hose naturally forces itself back against the clamp causing a good seal. over tightening will not allow the hose to form that seal.|||sounds like your so called %26quot;high performance%26quot; radiator hoses are too large for your car, I would call and get a refund and get oe hoses|||First of all DO NOT add any stop leak additives to the system. If you suspect that your leak is from the hoses/clamps then this should help. Most radiators/water pumps will have small stops that indicate the limit of the hose being attached. You want to make sure that the hose(s) are not past these markings. If none are seen then place the hose as far as it will go WITHOUT flaring the edges. The hose clamps should be inspected to ensure that the band is not damaged thus giving a sense that the clamp is tight. The clamp should be placed approxoimately 1 inch from the edge. And of course, ensure that the surfaces that the hoses are mounted on are free from corrosion. If after this is done and it still leaks then, yes there is another problem. Perhaps a system pressure check may need to be performed to reveal the exact location of the leak. Good Luck!|||just a thought ,maybe radiator cap is stuck or releasing pressure too late.A radiator shop can check the cap to insure it is operating/opening at the correct pressure. Be certain to check when engine has completely cooled down,as the hot coolant can scald you ,when opening the radiator cap. safety first