Constant Tension Hose Clamp

Removal

1. Pressure test the system to determine the following steps. Proceed with the location of the leak only if it is a radiator hose joint that is leaking.

2. If the hose joint is leaking, reseat the clamp by using a pair of pliers or vice grips to squeeze the clamp tangs together (loosen the clamp), reseat the hose, then re-release the clamp. Pay close attention that the clamp is straight (perpendicular to the hose) and is not cocked over the bead.

3. Pressure test the system again. If the leak persists, check the radiator hose, clamp, and connector (see step 5) for damage. If damage is observed, replace the damaged part.

   
   
   

   CLAMP REPLACEMENT PART NUMBERS

   Diameter of Connector	Clamp Part Number
   1-1/2 Inch	N808275-S101
   1-3/4 Inch	N808276-S101
   2 Inch	N808732-S100

   
   

4. If clamp is only to be removed, residual glue may exist on the hose. If necessary, remove the glued clamp by applying a heat gun at 216°C (420°F) to the glued portion for approximately one minute. The glue is supposed to dissipate with the thermal engine cycle, so it may not be a factor. The glue is located 180 degrees away from the tangs.

5. Inspect the connector for any scratches or foreign materials on the sealing surface. If connector is damaged, replace.

Installation

1. Push the hose onto the connector until it is completely seated against the hose stop. If lubricant is to be used to assist hose installation, use premixed Merpol (ESE-M99B144-B) or water. Any other type of lubricant could potentially cause the joint to leak.

2. Release the clamp by carefully removing the retaining clip using pliers or vice grips. During removal, the clip should be held securely at all times. Do not pry or pop the clip off the clamp.

3. Check that the clamp is straight, fully released and seated on the sealing area of the hose and connector. The clamp should NOT be partially or completely cocked over or on top of the bead at the end of connector.