Helpful tips on installing a Continental Engine water pump
This Tech Tip is one of a series that we publish on maintaining industrial and marine engines and power takeoffs. This Tech Tip focuses on how to install a replacement water pump and pulley on your Continental Red Seal industrial engine. Please call us for further information, a Workshop Manual for your Continental engine or if you wanted to order a new water pump.
Installing a replacement water pump and swapping the pulley from the old pump to the new one on a Continental industrial engine is easy if you follow the procedures listed below.
- BEFORE installing your new replacement water pump, thoroughly clean the cooling system by flushing radiator and block several times in both directions. We suggest the use of a cleaning or flushing compound to make sure all rust and scale is purged from the cooling system.
- Remove old water pump from engine and clean block face.
- Remove “back plate” from old pump and measure the distance from rear of pump body to rear of pulley flange
- Use puller to remove pulley from shaft
- Measure pulley and shaft. Recommended minimum press fit is .001 inches (.025 mm)
- Insert cap screw in pump body BEFORE pressing pulley on to shaft. Coat inside of pulley bore with Loctite “retainer compound”
- Place pulley on flat surface, pressing on END of shaft with arbor to dimension determined in step 3. Pulley should rotate freely. Reassemble pump on engine black using new gasket.
- Fill cooling system with clean water, including antifreeze, if climate dictates. DO NOT run the pump without water in the system. Running a pump dry will damage the seal and shorten pump life.
- Even if hoses look sound, check them to make sure they have not become soft or spongy. A soft or defective hose allows air to leak into the cooling system and combines with the water to accelerate corrosion and restrict water flow. Make sure hoses are clamped tightly.