A reduced flow rate and increased engine temperature.
#Inboard boat impeller cracked#
Visible impellers that are cracked and/or missing blades.A couple of tell-tale signs that service is needed are: If you don't regularly service your raw water pump impeller, you will want to service it before you have an overheating issue.
#Inboard boat impeller how to#
How to tell if your raw water pump needs servicing This can keep costly repairs or replacements at bay and ultimately save you time and money in the long run.
#Inboard boat impeller free#
Additionally, servicing the pumps makes sure that all components are free of wear and tear. Consistent servicing of your raw water pump is therefore a good preventative maintenance practice to keep your equipment in top condition. Ensuring that your raw water pump is functioning properly helps keep the motor from overheating, which can make the entire motor vulnerable to damage. The raw water pump is an essential component of a cooling system, and it's important to keep it serviced regularly. Why it's important to service your raw water pump In this blog post, we'll share some tips on how to service your raw water pump and keep it running smoothly. By understanding how to properly service your raw water pump impeller, you can help keep your engine in good shape and avoid costly repairs. Over time, these pump impellers can become damaged and worn out, which can lead to overheating problems with your engine. Raw water pumps are responsible for circulating water from the lake or ocean through the engine cooling system. If you have a boat with an inboard engine, it's important to understand how to service the raw water pump. Our team of boat technicians has the skills and experience needed to service your boat.Servicing Your Boat Engine's Raw Water Pump Staying on top of this boat service can save you thousands of dollars down the road. Let Matson Auto and Marine replace your impeller MerCruiser impellers should be replaced every three years. The design of these units extends the life of impellers. The one exception to this rule would be MerCruiser systems. It can take a long time to clock 100 hours, so we also recommend that the impeller is replaced every other year for the majority of outboards and sterndrives. Depending on how much you use your boat, impeller replacement should be done based on either hour of operation or years.Īt Matson Point S, we recommend an impeller replacement every 100 hours of operation.
How often should a boat impeller be changed?Įven if no abnormal damage is caused to the impeller, it should still be replaced on a regular schedule. Severe damage may require an engine replacement. When an engine overheats, damage to the head gasket, cylinders, and the engine block is possible. Without a constant supply of cold water, the engine will quickly overheat. If the impeller on your boat breaks or fails, the resulting damage can destroy your engine. If you use your boat infrequently, or if it has been sitting for a few years, the impeller may have become brittle enough to fail on initial startup. Rubber becomes brittle and dry rotted if it is sits for too long. If your boat runs for even a few minutes (or even seconds) without water flowing through the impeller, it will shred and need to be replaced. Rubber impellers rely on water to keep them lubricated. Sand particles are abrasive and can quickly wear out the rubber veins of the impeller.
If the body of water you take your boat out on is especially muddy or sandy, the life of your impeller can be reduced. There are a few factors that can speed up impeller failure. Like any moving component, rubber impellers will wear out after years of use. Regular seasonal inspections and replacements can prevent major headaches and expenses down the road. Without the impeller, your boat’s engine will overheat.Īs a boat owner, it’s important to pay attention to the condition of your impeller. That being said, the potential engine damage from a failed impeller is substantial. During operation, water keeps them lubricated and prevents damage. When the impeller rotates, water is sucked into the cooling system.ĭespite being made of rubber, impellers tend to be durable. An impeller is a hub with flexible rubber fins. Boats use impellers to take in raw water. Cold water cycling through the system keeps the engine at a safe operating temperature. Most inboard and sterndrive boats utilize a raw water system to cool the engine while it runs.
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