Mercury Mercruiser Raw Water Pump Rebuild 2001-2016 ish 8.1 5.0 5.7 6.2 8.2 4.3

This video shows how to rebuild the troublesome raw water pump on Mercury MerCruiser inboard I/O engines. These pumps have inherent design flaws which leasd to feqent service. These pumps are very expensive to replace. Very popular on V8 and V6. With a few tools and a press you can save hundreds of dollars and get you back on the water in no time!

[@mattandrade30]

The most underrated video on KZbin. Thank you!!

[@brianbenz7658]

Yes this is definitely a great video. The frequent break down problems are something that could have been re engineered but left unchanged.

[@randykish8242]

Awesome Video Thanks! I enjoyed the "you gotta be careful" comment about sizing the puller tool and then out comes the hammer for a pulley beat down. You are a True Pro though for instructions.

[@Andrico77]

Great channel. Keep ‘‘em coming.

[@kirkc5823]

Nice job, looks like a pretty heavy duty pump.

[@LakelandAutoMarine]

They are actually pretty junk. One of the worst raw water pumps out there. 😀

[@andrewarmstrong7310]

I have always hated Mercury raw water pumps. The plastic housing always cracked where the hose went on at. Glad Hardin Marine came up with a fix, 316L stainless steel raw water pump. If you boat in the saltwater like me, you'll like it even more.

[@Andrico77]

Many people don’t know they are rebuildable and go out and buy a Hardin when these are great pumps.

[@AchikSarih]

Merci beaucoup ❤❤❤❤❤❤❤❤❤❤

[@johnruppe1699]

Thanks for the content!

[@LakelandAutoMarine]

My pleasure!

[@alexandrzejczak6848]

What is the number of the blue point puller Thank you.

[@ivanyano667]

Hello! Dumb question here but which way do the hoses go to it? Which is the inlet one coming from the raw seawater? Amazing video man!

[@mateusz8760]

what kind of toolkit is this ?

[@nawspolny849]

Great video only thing I wish you would’ve open those instructions. Mine don’t have a spacer between the bearings, and I was wondering if there is a spot certain distance between them

[@LakelandAutoMarine]

Original pumps didn't have a spacer. I always measure them before I take it apart.

[@ronnash7289]

Hi, great video. Could you please advise what the thread size is for the shaft internal thread. I'm trying to find a puller kit to refit the pulley. Believe its metric size?

[@LakelandAutoMarine]

8mm x 1.25

[@ronnash7289]

@@LakelandAutoMarine Many thanks for your quick response. Sorry, watched it again and you do state the shaft thread size in the video. Pressed it on in the end. 🙂

[@GabrielDitch-ro4yr]

What brand and type of puller are you using? Thanks

[@LakelandAutoMarine]

It's just a normal power steering puller.

[@jeffatrlnw]

Anybody know where to order than impeller driveshaft kit? My google searches are showing discontinued or sold out

[@LakelandAutoMarine]

They are on backorder currently from Mercury

[@jeffatrlnw]

@@LakelandAutoMarine i was able to get the impeller drive kit from my local boat shop. Thank you so much for the video pump disassembled, diagnosed and back together.

[@davidwiggins3451]

Is the body of the pump bronze?

[@LakelandAutoMarine]

Yep.

[@hildablanco1591]

Hardin marine makes a stainless steel housing pump that's better than mercury and bigger impeller