Impeller Replacement- The Basics
Jabsco - The Original Impeller
||Jabsco flexible impellers can be fitted to most makes and
models of bronze flexible impeller engine cooling, bilge,
transfer and general purpose pumps.
Jabsco flexible impellers are subjected to rigorous quality
processes to ensure reliable, efficient and long lasting performance.
Impeller Replacement - The Basics
Use Neoprene Impellers for engine cooling, and for fresh or
salt water transfer duties. Neoprene is the most commonly used
material and is suitable for use where only small amounts of oil
or diesel fuel are present.
Use Nitrile Impellers for bilge pumping, and for transfer
duties where the water is heavily contaminated, for example by
oil or diesel. For diesel transfer duties, go to pages 45-46 and
select a Jabsco Sliding Vane pump.
Replace all impellers at least once every year, or sooner,
depending on the engine duty. When the installation is correct
an impeller may last for several years, but it is always advisable to
stick to a schedule of preventative, rather than corrective,
Replacing impellers is easy. By removing the end cover
screws, it is possible to remove the impeller by using either a
Jabsco Impeller Removal Tool, or channel lock pliers, to grip the
hub of the impeller. Don't use screwdrivers as they may damage
the face of the pump body, causing leaks, and they can be
dangerous in confined spaces.
Always carry spare impellers on board in case of
emergency. The impeller is one of the most vital components of
the engine cooling system and should always be treated as such.
Always grease new impellers. Firstly, it makes it easier to
install the impeller into the pump bore, and secondly it gives
added protection to the impeller during initial prime. After
replacing the gasket and end cover the pump is ready to use.
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