Mercury MerCruiser V8 total removal & installation (How To) 

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Just a bit of info: You don't need the specialty tool. You can use a 1/2" [6sided] Ratchet-Alan. This is info from a Merc engine mechanic near me, and I also did it. Worked fine. Edit: He also told me he has broken those tools several times. And he has yet to break an alan or bolt. :-)

I’m glad I found this video. I thought maybe I could change an engine on an old boat but it looks to tough for me. You made it look easy but you won’t be here

Thanks for taking the time to record this. It helped out a ton!

Lol, it sounded like you were putting a running engine back in the boat. That’s what I get for watching YT at 1 am. Thanks for the video.

Glad to see you did not use the dumb block of wood method removing the drive. 25 years as a boat mech and i cant say I saw anything done wrong here,, Nice wrk..

Great documentation i documented for myself wishing i took the time to make a video like you guys did. Good job on both.

executive chef and boat mechanic! Great job sir

I Liked the safety sandals been worn! Nice!

That’s great help I’m doing restoration this summer 👍

Yes. You need to remove outdrive in order to remove engine. And I recommend you buy a complete turn motor replacement or you’ll be doing this job again…that’s experience talking!! I pulled an old engine from my boat patched it up with new gaskets and starter and alternator and then did ran descale through engine passages. All for not…engine still overheated and likely blew a head gasket. It’s expensive but I recommend a complete turn key engine replacement. I had a tow truck come lift my engine out. Tow truck has to have a boom that goes high enough into air and is not connected to its under car carrying boom

that tool is called a triple square. most German car mechanics have these. thanks for the video , going to tear out the 1987 Chris craft i just bought

Great video, guys. You really showed what to do..! The next guy may curse you when he gets to deal with the 3M 5200... lol

Great Job guys!!

That special tool looks like its just a triple square

Good work. Your very talented!

I had to make my specialty tool. I Currently have engine ready to pull the see what my options are for a cracked block fix or swap or swap then fix. What's more important time or money? I say time however time goes well with a couple buddy's and so.e beers and some wrenching while trying something new.

Nice job!

Great video. ("Footnote", Kingston ON)

dropping a fresh 350 in my boat this weekend! hoping all goes smooth lol!!

Sounds good. Now let's get some fish

BEST video ever - Great job Chef!

About to replace my old 470 with a reman 470 Mercruiser in my boat so this is very helpful. Alpha 1 Gen 1, not sure the difference between the Gen 1 and 2?

Great video fellas, very helpful and you made it seem easy peasy...... Thanks for the help😎😎😎😎

Great work love the content, keep up the great work!

Great work!

digging the chef attire 👌

Wow. Thanks man !!!!! Saved me MAD Bucks.........

Great job! I am planning to get a 1977 Mercury Marquise. Engine: Mercruiser 4788052. The body of the boat looks impecable; however, the owner told the seal between the engine and the outside part might need to be replaced. Any ideas, suggestions on this, please? How advisable for me it is to buy something like this? I am a new comer and has zero knowledge on boats. Thank you!

Editing makes it look soooo easy, LOL

Does your starter require a 90amp fuse for the solenoid? The battery was hooked up backwards on for my mercruiser 350 and it tripped the breaker on the motor, but there's no fuse on the solenoid and I think it trashed the starter.

I heard you mention that this is a Gen II Alpha 1. Why do you have an extra raw water pump? My understanding is the Gen II's can handle a full closed cooling system with just the outdrive pump and the engine circulating pump? I am looking at doing a project similar to this and planning on adding a heat exchanger to it.

I really enjoyed your video, can't speak to that enough. I have a 1994 Bayliner with a 454. Do I have to remove the outdrive to replace the engine? I did not see how you lifted the motor, any advice? Might it be better for me working outside to remove everything I can off motor to reduce weight or is it better to pull all to reassemble to a new motor? I bought boat at auction and it had 9 gallons of clear water in oil pan.

great video guys! That engine looks great.

hope ya put sealant inside the holes the bolts are in

Thank you for your excellent video, very helpful!

man do i want steel toed boots after watching the engine going down

Merci beaucoup ❤❤❤❤❤

should have put dielectric grease on them postive cables connection to the starter motor, so they wont rust up etc

Awesome video! How many hours did u guys spend on doing this job ? i´m about to do the exact same procedure this week..

Why didn't you change the gamble bearing and boot

was focused on the starter portion. i have the same motor in an 86 larson delta cruiser. however i only got 1 bolt out and the inside bolt is real hard to reach. was trying to see if i can undo the 2 front motor mounts to lift an inch or 2 or not. not wantin to do this whole process. ugh

Great job sir. Do you have to take the outdrive off if you are only swapping out the engine? I gotta put a new 350 in my dads trophy. Thanks

I have a 1993 Crownline 193 br 19 ft speed boat it has a 5.0 L engine in it now with a cracked block will a 454 7.4 engine fit in my boat?

You guys look familiar... 😂

The best

Wondering about how long it takes? I have a 4.3 I'm thinking about replacing.

Can I get the engine out without messing with the out drive?

How much would it cost to remove a 3.0 volvo penta engine and put a 4.3 mercury engine in

Скажите пожалуйста. Где купить редуктор на Меркури 260

I have alpha 1 gen 1 outdrive, can I change it to bravo outdrive? Thank you

5200 huge mistake. Never be able to work on that again. 10,000 years from now all that will be left is a ring of 5200. The rest will be rusted and rotted away. But 5200 NEVER let's go. Throw those tunes of 5200 away!!

How do you disconnect the engine from flywheel?

what did you use to pull the engine out?

Bravo fit on Alpha transom?

Working on a boat that is worthless is a waste of time project. After it’s done, boat is worth less than the cost of parts and labor. So if someone bought a boat for $1, seller for a great deal lol.

How long did it take y'all to do this job?

What was the total hours spent?

It might be called a specialty tool since you said it 40 times lol

Background music name??

You cut the actual engine pull 😞

U missed the point of the video - how you pulled the engine

You are installing a 700 lb engine with flip flops on. Not a wise move

Yow supposedly make a video to show how too. And You definitely screwed up by not showing us how you did parts of your disassembly and assembly…..you left out some important parts for the rest of us to be able to learn from.

5/8 is not the same as a 15mm

You forgot to tight/ seal the shift cable Bello end....oops😱