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how to change impeller on 150 mercury outboard

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I have a 2003 150 hp mercury outboard trying to replace ...

I have a 2003 150 hp mercury outboard trying to replace the impeller but i cant get my gear case to drop down what - Answered by a verified Marine Mechanic We use cookies to give you the best possible experience on our website.

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how often do you change your impeller? | Boating Forum ...

 · Re: how often do you change your impeller? I''ve changed mine 3 times in 30yrs, I didn''t know your supposed to change them every year until I joined this forum, I guess I got lucky, always in fresh water and seldom in any mud or sand, I think that makes a big difference, the old impellers have always looked good besides a little curvature of the wipers.

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Mercury Outboard Impeller

2021-3-11 · Mercury Outboard Impeller Forum Topics. Mercury Outboard Parts Powerheads Mercury Propellers ... Mercury Outboard Discussions 4-Stroke Bracket Cable Carburetor Code Color Compression Cooling ... 150 HP 175 HP 200 HP 225 HP 250 HP 275 HP 300 HP Mercury Outboards by Year 1948 1949 1955 ...

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Mercury Outboard Impeller

2020-6-2 · Impeller, Outboard Motor parts for Mercury Outboard and Mariner outboard motors.

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How do you change mercury outboard thermostat?

2011-9-13 · locate thrmostat housing. this is usually located at or near top of cylinder head. remove t-stat cover bolts. remove old stat, clean mating surfaces thoroughly. if yours has a gasket get a new one ...

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How often do you replace the impeller? | Boating Forum ...

 · Apr 19, 2014. #8. Re: How often do you replace the impeller? Impellers should be changed every other year, if you use the boat or not. If you use it it wears, if you don''t the blades take a set and get less flexible. If you often run in rivers and/or sandy silty water then change it …

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Signs of a Bad Outboard Water Pump & Maintenance Tips

Most impellers at idle will produce anywhere from 1-3 PSI at idle. Then up to 20-25 PSI at wide-open-throttle! This does change depending on the age, RPM, and model of outboard and impeller though. If you are unsure how the outboard water pump is functioning, it doesn''t hurt to change the impeller.

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The Installation of the Lower Unit on a Mercury Outboard ...

The lower unit is the part of the motor lower than the exhaust housing. It holds the drive shaft, the propeller shaft, the water pump and the gears. The lower unit on Mercury outboards must be removed to change the water pump''s impeller. Replacing the lower unit is part of replacing your water pump''s impeller, ...

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Mercury Outboard Impeller Repair Kit

2020-6-2 · Mercury Outboard Impeller Repair Kit. HP. Year. Serial Number. Part # 9.8. 1966-78. S/N 5206550 & Up .456" I.D. Only. 3239

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Mercury Marine where is the impeller located on a 7.5 hp ...

2010-1-1 · The water pump impeller on a 7.5 hp Mercury outboard, is located on top of the gearcase, and is driven by the driveshaft.

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Water Pump Replacement for BF115D•BF135A•BF150A …

2014-1-27 · BF115D•BF135A•BF150A Outboard Motors Prior to removing the gear case, make sure the outboard motor is secure on an engine stand or transom of a boat that is out of the water. Tilt the outboard motor up to the highest position and place the shift lever in the "N" (neutral) position. Disconnect speed sensor tube C from speed sensor tube B

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Impeller change in 25 hp Mercury | Boating Forum

 · Re: Impeller change in 25 hp Mercury You will need to disconnect the battery and remove the starter then you will see a little black or sometimes blue cleviis pin at the top of the shift shaft.That pin unsnaps from around the bulbous portion of that clevis and just pulls out.Carefull now as there is a washer in the mix to operate the reverse lock.The soap opera …

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How do I change the impeller on a 2001 Mercury XR6 150 …

 · I need to change the water pump or impeller in my 1996 mercury xr6 150 hoarse outboard mator. How do i get access to the water pump. I''m a maintenance machanic by trade, so I''m easy to explain to. … read more

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How to Replace a Mercury Outboard Water Pump Impeller …

Once this happens the material characteristics of the impeller change and are such that it is no longer able to create the needed "low" pressure draw to pump water as it was designed. Regardless of whether you run a Mercury Outboard Motor, Yamaha 4 Stroke Outboard, or Mercuiser Sterndrive motor proper cooling system maintenance is critical ...

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Mercury 200 Water Pump and Impeller Replacement | …

Follow the steps below and watch the video above to learn how to replace the impeller and repair the water pump on a Mercury 200HP outboard. NOTE: We used a Mercury 200XL Verado, but the process is the same or similar for most outboard motors.

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How to Change an Outboard Engine Water Pump Impeller ...

2013-5-25 · The first step in this process is removing the lower unit. Pull the bolts that secure it, and have a friend help you slide the unit down and off of the outboard. Make sure you have a place to sit the lower unit in an upright position, before you pull it off of the engine. Next, remove the water pump housing bolts, and then lift off the housing.

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Water Pump Impeller Change on Ou

2013-5-29 · Water Pump Operation : The operation of most marine water pumps using a rubber vaned impeller is, the cavity between the vanes is what makes it pump water. As the off-center impeller rotates, the cavity enlarges, drawing in a …

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Mercury 3.3 2stroke impeller removal | YBW Forum

 · Rcole. Pull off a rubber cap on the side of the bottom of the drive leg and undo a screw that joins the two parts of the gear linkage. Undo two bolts and take off lower section of drive unit: another 4 bolts then become visible on a small casing over impeller. Undo and take out impeller and metal ring in which it runs.

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How to change a water pump impeller on 150hp, 1984 …

How to change a water pump impeller on 150hp, 1984 mercury black max - Answered by a verified Marine Mechanic ... My 2012 30 HP Mercury outboard gave an alarm sound for high temp. I shut the motor off, waited, and then made it back to the landing running very slow, ... i have a 1984 150 mercury black max, i want to change the spark.

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replacing impeller on 60hp mercury | Boating Forum ...

 · Re: replacing impeller on 60hp mercury Go to The site will give you exploded views of your engine etc along with part nos.
Youll need your motors serial no.A postcode in the US I use 60438 & then pick any dealer.The impeller/waterpump is located above the lower unit on the driveshaft,in the center section .

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What Indications Tell You That You Need to Replace the ...

All outboard manufacturers recommend that you at least inspect the impeller every 100 operating hours or once yearly, whichever comes first. As an astute boat owner, it''s certain you''ll realize you might as well replace the impeller -- slide it off the driveshaft and slide a new one on -- since you''ve already removed the lower unit and the pump ...

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How to Replace the Impeller on a 150-HP Mercury …

The maintenance schedule for the 150-hp Mercury outboard motor calls for replacing the water pump''s impeller after every 100 hours of operation, or once a year. Unlike many of Mercury''s larger motors, the lower unit found on this model is equipped with a water pump housing that uses a replaceable cartridge ...

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Mercury Maintenance Schedule : Power Source Marine

2016-9-20 · 1 These items may require more frequent intervals if exposed to contaminates that increase wear of impeller or clog passages or filters. 2 OptiMax® 135/150/175HP models require annual water pump impeller replacement. The information provided above is courtesy Mercury Marine and is provided as a courtesy to Power Source Marine''s customers.

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Replacing An Outboard Water Pump | Crowley Marine

2019-1-31 · Step 14. Step 15. Step 16. As a general rule of thumb, the water pump impeller should be replaced every other season. A water pump repair kit is available for almost all outboard models. For steps requiring lubrication use BRP Triple-Guard Marine Grease or Mercury 2-4-C Marine Lubricant.

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Scheduled Water Pump Impeller on F-150 OB

 · Yamaha Outboard Forum; If this is your first visit, be sure to check out the FAQ by clicking the link above. ... Scheduled Water Pump Impeller on F-150 OB 09-04-2020, 10:01 AM. I have a F-150 4 stroke. Mfr''ed in 2014, bought in 2016, now with 150 hours on it. The manual says to "check" the water pump at 150 hours and replace at 300 hours.

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Water pump change on a Mercury 150 Black Max ???? | …

 · 8) Clean and inspect the housing and impeller base plate which will still be on the lower unit. 9) if you see any gaulding or damage on the inside of the housing or base plate, replace it. Also check for cracks in the housing. 10) Slide the new impeller on the shaft. 11) Then lube the inner race of the housing and slide it over the shaft.

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4hp Mercury outboard impeller, how do I remove it!? :S ...

 · Re: 4hp Mercury outboar impeller, how I remove it!? :S hi, under the black rubber is a brass sleve,use a sharp chisel and hold parell to the shaft, tap down on the brass sleve to split it open,it shood then just slide up of the shaft,if it is to hard to split, drill in from the side with a 3/32 drill in as far as the shaft to weaken the sleve first.

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how often should a person change the impeller pump ...

 · 01-18-2016, 07:29 PM. Mercury recommends changing the impeller every 300 hours.. s in the owners manual. It''s an easy enough job to do yourself if you have some mechanical skills. There are several videos on to show you how. Parts are inexpensive and it takes less then 2 hours to do. 300 hours could be a long time.

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Avg cost of water impeller replacement?

 · The impeller should run around $30/40 and take about 25 minutes or so. The hardest thing is getting the speedo tube back in place. Just apply greese on the bolts and impeller shaft and jog the propshaft and it should go smoothly. The last one I had put in my 50 hp Merc 4 stroke was about $125 installed.

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When changing the water pump on a 2005 mercury 150 …

2005 mercury 150 efi outboard. pulled lower unit off and replaced water pump impeller and housing. on refitting lower unit, the last inch or so won''t go in. seems the shaft won''t fit/engage after a nu … read more

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How Do I Install the Water Pump on a 7.5 HP Mercury …

Installing a water pump on your 7.5 HP Mercury outboard motor is a straightforward process best undertaken as part of inspection or other maintenance of your motor''s lower unit. It may also become part of your preparations for long-term storage during the off-season. The pump is located directly atop the ...