I will be replacing my water pump tomorrow and my question is can I use copper spay gasket to spray on the water pump gasket?it this stuff good?99 ford explorer 4.0 ohv with 144k,mileshere is a pictures of the product.
Sure, why not? Usually, the metal area when most water pumps are bolted too are cleaned with a scraper of some kind and old gasket matter is removed. That surface should be cleaned, flat, and free of irregularity. Most mechanics, if they use any kind of stickum - like contact cement from a tube, or the costlier, but not-needed specialty sealers, is applied to the pump surface so the gasket stays put and not move when installing the bolts. The glue does not do any actual sealing, just the fiber gasket will. None needs to be applied to the engine side that you scraped clean. Make sense to you? It's probably a good idea to service the cooling system with a non-caustic flush cleaner before hand -since all the coolant will come out during the change. Then add a additive that neutralizes acids with the new anti-freeze.