Can I just replace the water pump gasket?

When changing a water pump, replace all old gaskets and seals with new ones. If your new pump comes with a seal, make sure it’s in impeccable condition before installing it. (Some seals are so thin you could easily damage them when you rip off the packaging.)

Is there a gasket on a water pump?

A gasket is a part that provides a mechanical seal between two surfaces. In the case of your water pump gasket, it seals the surface between the engine block and the water pump, preventing leaks from the coolant that flows through the water pump.

What is a water pump gasket in a car?

In simple terms, water pump gaskets seal the flange segments that hook the pump to the inlet and outlet pipes. If water is drawn by a positive displacement mechanism, such as a volute impeller, it’s the job of this seal pair to ensure the coupling between the pump and those ports is tight.

Are water pump gaskets reusable?

Metal and malleable material gaskets (like are found in GM intake gaskets), can be reused if there isn’t any apparent damage to them. Even some MLS (multi-layered steel) head gaskets can be reused under the same conditions.

How much does it cost to replace a water pump gasket?

Typical costs: Hiring a mechanic to replace a water pump typically costs $300-$750, depending on the make and model of car and the more parts that need to be removed.

What causes water pump gasket to leak?

Most gaskets are made of compressible material that fills up the surface roughness of mating parts. This material can be of a number of materials, but are compatible with the gas or liquid being sealed. Some gaskets degrade after a time, causing a leak.

What do I put on a water pump gasket?

Permatex Water Pump and Thermostat RTV Silicone Gasket is a non-corrosive, sensor-safe RTV silicone gasket material formulated specifically for water pumps and thermostat housings. This gasket maker has the highest water-glycol resistance available in an RTV silicone.

Do you use sealant on metal water pump gasket?

All old gasket and seals should be replaced when changing a water pump. Before installing your new pump, make sure it’s in perfect condition. You might be tempted to apply sealant to an O-ring or a dry seal just to be extra safe, but these seals don’t need it!

Can you use old gaskets?

Reusing a gasket is not advised as the saturation and absorbancy condition can vary. A gasket should be assembled, then exposed to heat and fluid. A used gasket already having swelling due to the fluids should not be reused.

How do you fix a leaking water pump gasket?

Pour a liquid radiator/water pump stop-leak product, such as Bar’s Liquid Radiator Stop Leak, into your vehicle’s radiator. The radiator is usually located in the front of the engine. The liquid stop-leak product poured into the radiator will flow to the water pump seal and possibly seal or slow the leak.

Can you drive with a leaking water pump?

Yes, you can still drive your car for some short distances, keep filling up the reservoir with coolant to the FULL line mark. Take your car to a repair shop to get it fixed as soon as possible to avoid further damages to the engine, because the leakage will get worse if the repair is delayed.

Should I use gasket sealer with a gasket?

A general rule, if you are using gasket sealant, you don’t need a lot! Automotive applications commonly use gasket sealant alongside solid gaskets, as they are repairing older parts. Gasket sealant can be used to make cheaper gasket materials more robust, increasing adhesion and chemical/water resistance.