How to REPLACE a Head Gasket on a Outboard Motor! (Yamaha 150VMAX)
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- Опубліковано 11 лис 2022
- In today's video, I will be showing you how to replace a head gasket on a 1999 Yamaha150VMAX. If done properly you can save yourself a TON of Money.
Disclaimer: I am by no means a professional! This video is intended for entertainment and partly educational for those who like to "do it yourself".
Tools Used:
- 1/4" & 1/2" Drive Ratchets, and Torque Wrenches
- Assorted 10mm and 12mm Sockets and Wrenches
- Electric Drill and Impact Driver
- 320 grit, 400 grit Sandpaper, & Sanding Block
- Razor Scraper, Screwdrivers, Picks, & Assorted wire wheels & Brushes
- Microfiber towels, Isopropyl Alcohol
- Straight Edge & Feeler Gauge
- TCW3- 2 stroke oil, Permatex 592 - Навчання та стиль
Exactly the instructions I was looking for. Thank you.
Glad I could help!
I am going to help a friend with his 1990 Yamaha 2 cylinder 40hp this Thursday. He got it for a 100 and done a fantastic job cleaning and painting among others things. He however used a cordless impact gun to try and remove corroded head bolts 😱😱😱. He snapped 3 of them.
I am going to remove the power head and use a drill press to drill them out, tap the threads and get it done for him. His paint job is gorgeous along with new decals.
Sounds like a fun project!! I was pretty scared with snapping the head bolts but I just used a normal ratchet.
Dude what an awesome video!! Explained everything perfectly.
Nice video man. You speak clearly for your viewers to understand, and your work looked thorough. Im gonna hit subscribe 👍
I appreciate that thank you!
Great job young man, doing by the book!!
Thank you!!
Intelligent young man! great and very informative video. Excellent presentation! Good job!
Glad you liked it!
Great instructions and video
Thank you
Glad it could help out thank you!
😊❤️ You are an expert ‼️
Thank you! My Tohatsu M50d really needed to be reworked. Getting a small amount of water in the bottom cylinder. Should be good to go now!
Top stuff.
Awesome video
G'day from Australia 🇦🇺
Thank you !👍 Cheers from Florida!
I have an 03 vmax thats getting this treatment next week. Great vid!
Thank you, hopefully it’ll run like new!!
Great video.
wow man, you are great! keep it up
Thanks a lot!
Best vid iv seen!
Good Job!!!!
Very nice buddy...thank u so much ...
Thank you for say the 15nm 11ft ponds an all u did me a solid bro gods great ❤
Nice work!!!
Thank you! Cheers!
Thank you for sharing this video
My pleasure!
Wauwtuh boat mechanic 👌🏼💯✔️
Wauwtuh
Yikes on the steel wire brush. It’s harder than the aluminum. I use a fiberglass strand wheel for that. Takes off the junk, but doesn’t hurt the soft aluminum.
Thanks doing my 225 yamaha this weekend 🇺🇸
Good luck!
Do you not use gasket sealant for the cylinder gasket or water jacket gasket? ALSO what did you get that online pdf of your motor? Thanks man
Thank you
good job. am surprise an 23 yr old oil injected motor still idles that good.
Thank you!
Awsome
Awesome video man! I’m about to do mine here in a week or so. When you said at the end to put a little oil, did you mean on the 12mm bolts or somewhere else?
Yeah the oil is for the 12mm head bolts. The 10mm jacket cover bolts take the high temp thread sealant. Good luck!
Very nice job young man
Thank you!
What’s the part number for the water jacket gasket?
Can I call you and ask you a question about my motor overheating
Muy Bien explicado more clear explanations
What’s the best way to clean the bore’s once you finish sanding; Compressed air followed by brake clean ?
I thought I replied but I used a clean microfiber towel or shop towels and then coated them with a little bit of tcw3 to prevent corrosion compressed air could work just spin the crank to make sure nothing got past the piston rings
What tool did you use to clean between the cylinders of the block?
Assortment of screwdrivers, picks, and a thin wire brush then flushed out with water. I would suggest a vacuum to suck all the crude from the cowling
Water line on top of the head what that for can i plug it off
I would have to check the manual but I think it’s for a sensor so I don’t believe you can plug it
Gang gang
🤘🏽🤘🏽
Where you losing compression in any of the cylinders before this?
I didn’t do a compression test beforehand but the engine sounded strong I don’t believe it had any compression issues
Just replaced head gasket and water jacket gasket and I’m still getting what looks like water in cylinder 2.. All compression was 108-110 on all cylinders.. Any help is greatly appreciated!!
Sounds like a possible warpage on the water jacket cover or a hairline crack in the water jackets. Did you check for the warpage on the water cylinder heads?
Check your exhaust manifold, it has walls in it to cycle water, they can corrode and begin letting water into the cylinder. Be careful with the bolts though.
Did you use gasket sealer on a thermostat paper gasket?
Nope just the plain gasket
@@austin.rivera Thank you very much, great job, i will be doing this tomorrow. Super helpful video .
You’re welcome good luck and have fun !
It's for sale?
Not yet
Where did you get the pdf at?
I don’t remember the exact website but I got it from google I just searched for the maintenance manual on there.
@@austin.rivera did you end up putting the loctite on the head bolts as well?
@@Sportsmans_Paridise_Outfitters I used some penzoil tcw3 two stroke oil on the head bolts, manual states Yamaha 2 stroke tcw3 oil im assuming it’s so you don’t damage the threads when torquing the bolts down and for better torque reading loctite was just for the cylinder head cover bolts
I was gifted a mariner5.
Haven't a clue where to start....
If it runs I say start with replacing the spark plugs, checking lower unit oil, and clean the carbs if it applies.
@@austin.rivera definitely needs to be broken down. I'm afraid to even try to pull.
Any seals I'll need to replace?
Possibly yess I think it’s cheaper if you get a rebuild kit for the entire motor than to try and piece them out separately. That way you should have most seals and gaskets used when tearing the motor apart
@@austin.rivera awesome idea!!!
That looks like an old two cycle you I thought the young generation was for a clean environment you should throw that in the garbage and go four stroke it's much better for the environment they need to pass some kind of law banning all two cycle engine's in the water
What type of grit sandpaper did u use to sand the heads
320 grit then 400 grit I wouldn’t go lower than that.
@@austin.rivera ty for tge response and answer.
@@austin.riverabest way to clean the bore afterwards ? Compressed air then brake clean ? Just wanna make sure I get any grit out thx
@@skip3662 brake cleaner and some shop towels should then coat with some oil after. Compressed air could work but could also push the grit deeper in there. Rotate the the prop or driveshaft the the pistons can move and get a better clean
@@austin.rivera that makes sense, I’ll stuff some cloth in there prior to sanding as well. Thanks Austin, 🇦🇺 👍👍
Thank you
You’re welcome!