Mercruiser 90 impeller install

Includes water pump base replaces Sierra Water Pump Kit for Mercury Outboards Sierra engine parts are engineered to meet today's high horsepower engine demands and stand up to the harsh marine environment.

All Sierra products meet or exceed the original part it replaces. Sierra high quality aftermarket parts are manufactured to meet or exceed OEM requirements. This kit contains all the components needed to properly This impeller fits MCM and outboard applications. All Sierra engine parts are manufactured to meet or exceed OEM requirements All Sierra marine parts are manufactured to meet or exceed OEM requirements.

For Use On Engine Bigfoot, all When yours require replacement, it is time to contact Wholesale Marine. Water pump impellers are one of more vulnerable pump assembly parts. MerCruiser impellers should be inspected once a year, or every hours, and replaced as needed. Impellers are a series of rubber vanes that are molded around a hub which rotates.

Friction, corrosion, water, sand, disuse and heat can all abraid and degrade the rubber. Also, when the vanes are bent, this is an indication that replacement is required. Keep your engine running cool with help from Wholesale Marine. We carry every part for your MerCruiser outboard including circulating pumps, thermostats, and temperature senders. If you have a question, our customer service reps will be glad to assist you.

Give us a call at , or try our user friendly Online Parts Finder for help locating the correct parts for your outboard. Oops, something went wrong. How hard is it to drop the lower unit and [replace the water pump impeller on a Mercury HP outboard engine] myself? I assume there are five bolts and nut,s but what I don't know is what to expect when it comes down. Are there things that need to be disconnected?

Put it in gear? I need a Service Manual? Any chance someone has one and could send me the page s I need? I did a search here but could not find anything for a HP Mercury two-cycle Saltwater version. The best help for performing your own service work on your Mercury outboard engine is probably to be found in the Mercury Service Manual.

Mercury service manuals are typically nicely illustrated and give detailed procedures for performing service such as replacement of the water pump impeller. In general the gear case on a Mercury can typically be dropped quite easily because Mercury uses a splined shaft to connect the gear shift rod from the gear case to the mechanism in the mid-section for remote control.

This means that you can typically just loosen all the fasteners and the gear case will be free to drop. At the size and weight of the gear case on your HP, the challenge will come when you want to reinstall the gear case.

You have to wiggle it upwards, and you have to make sure all the various passages and shafts align. It can be a handful for one person. This way you can use the propeller to rotate the propeller shaft during the impeller replacement procedure and also when re-installing the gear case. You should check your owner's manual for your Mercury outboard engine to find the recommended service interval for the water pump. A water pump repair kit is available for almost all outboard models.

Disconnect the shift rod Not all shift rods disconnect in the same way. Some disconnect up by the powerhead, some disconnect below the swivel bracket, and some disconnect above the gearcase.