Today We Wrench - Wet Wednesday's: Seadoo 951 Engine Assembly
ฝัง
- เผยแพร่เมื่อ 7 ก.ย. 2024
- Its Wednesday and that means one thing here at Today We Wrench its Seadoo day!!!
We’re finally assembling this Seadoo 951 engine from the ground up.
Follow along and feel free to ask any questions you may have in the comment section.
PLEASE NOTE THIS REBUILD IS FOR A CARB MODEL!!!! IF YOU ARE REBUILDING A DI REFER TO THE MANUAL FOR TORQUE SPECS
As always thank you for watching and consider subscribing so you don’t miss an episode.
All tools used in this video are from OSD marine and we have included discount codes exclusive to us within the video. Use promo code todaywewrench so you can get 10% off your order.
osdparts.com
Rebuilding your engine and need to have your cylinders bored for a top end kit? This is who we use. Tell them Nick from TWW sent you!
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Seadoo manual:
seadoomanuals.n...
Products Used:
518 Sealant:
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ARP Fastener Compound:
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Blue Loc-Tite:
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CB Lube:
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Assembly Lube:
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Tools Used:
Torque Wrench:
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Milwaukee 3/8 Impact Gun:
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Allen key 3/8 Set:
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Oil Filler Syringe:
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Love how professional your videos are. Always so much detail. Can't wait to see the challenger rebuild!
Thank you so much your kind words are appreciated.
sorry scratch question, you answered in the video. i have a 951 di model that i plan on doing as my next project. Great video series, thanks for doing it.
Again another absolute top class tutorial 👏
Glad you enjoyed it
Wooohooo welcome back fellas
Yo welcome back, been looking forward to some more 90s seadoo vids 😎
Love the the detail in your videos.
Thank you!
That 85ftlbs on the flywheel nut looked a little too easy 🤣
That was the 1/2 torque wrench. Has a foot and a half bar so yes it’s that easy
Always good and loctite 518 is the only way 👌
Thanks brother
What silicone would you use? Im a 951di. Going out to clean it up right now. Assembly tomorrow!!
Just a high temp silicone?
There is nothing hotter than a man named Nick being filmed by a man named Nick. You need a couch in that garage.
When you sandblast the crankcase are you blasting the inside of it as well where the crank goes?
Even though a pro like you is going to chase the threads no matter what, when the cases are being blasted, why don’t you have the holes capped off with those conical, silicone plugs that powder coaters use? That’s how I do it and then it’s a lot less work chasing the threads. NICE job!!!!
Regardless of media or not I chase threads to ensure I have proper torque on everything.
Would you recommend putting sealant (silicone base) on all seals & chamfters for the 951 DI engine during assembly? I didn't see this on the owners manual (unless im blind). Just confirming prior to putting this thing back together! Thanks & great video!
Got any 951 DI help? Air compressor is being a pain. Replaced piston, rings, sleeve, o ring, and gasket. I'm starting to think it was the inlet Reed but awaiting parts
On the balance shaft bearing with hole. They say bearing hole is to face up but looking at pic in repair manual can see screw for fill hole which looks like hole is actually facing down to lower part of engine not up towards cylinders. Just curious when they say hole faces up is it because they have crankcase half with cylinder studs as starting assembly so hole is facing up towards you but as you put together other half it’s actually at bottom of engine opposite direction of cylinders?
Per the manual it should be facing up to the cylinder. Honestly I couldn't see it mattering much
Probably doesn’t matter. I just had a never opened engine and noticed when I split crankcase hole faced down. So I looked at seadoo service manual showing pic of direction of hole and noticed the oil fill hole screw showed in pic opposite direction of hole on bearing so had me curious.
So ive seen people talking about long and short blocks how do u tell the difference
can you advise why you’d use different sealant on a 951 di? and are there any other difference’s regarding the reassembly or components on a di main block?
Thats per the manual
Is there any kind of timing that needs done to the trigger coil amd PTO shaft? I had to remove stator and replace the trigger pickup onto the new stator. I did not take the magneto wheel off the flywheel. I'm not following the manual the best it seems. It's a 951 carb.
Noticed the manual calls for SAE 30 oil and you linked lucas SAE 85w-140 oil. Is this correct? Not an oil head so just want to use the right stuff when i rebuild my 951
Nice video man. Whats the average cost for a complete 951 carbed long block rebuild with new crank and labor and everything?
Best place for 951 parts?
Boy, Sea-Doo really could’ve built their 2-Strokes a little simpler.
Its pretty simple
Is the 951 reliable? I see a bunch of mixed reviews and could use a couple opinions
The little lubrication hole (giggity) on the collar on the counter balance shaft by the gear in the middle needs to be facing the sky if putting it and the crank in the lower half of case? If building the engine upside down the hole would face the work bench....? Also I'm pretty new to the PWC world, but not 2 strokes. Got a 97 GTX and a 98 GSX limited with the dreaded 'white' 951 engine which I'm rebuilding because a Reed valve support rib broke off and went through the engine. No serious damage, but tore it apart to make sure.
On top pointed up towards the head.
@@TodayWeWrench Awesome Thanks.
@@ericthorsell7515 giggity
I have a 99 Gtx limited 951 . And I really don’t like the auto oil mix feed , can I remove it , if I can what would be the ratio mix ???
was the crank rebuilt or did you replace it with a rebuilt one?
Got everything set up to put my white 951 back together and noticed the smaller of the two inner seals for the cb gear on the crankshaft is hammered. Half the sealing lip is gone along g with the retaining spring. Should I have it rebuilt or buy new? Who's your go-to for a crankshaft? I get the feeling you won't say SBT.
Rebuild by Nickerson performance
Do you think it’s possible to take the bottom casing off without disassembling the top end? I have a pretty good vibration and I’m pretty sure it’s from the countershaft being off timing. At least I hope
No you have to disassemble it
What top end brand do you recommend?
Yeah I was wondering the same thing
Como se que tipo de motor tengo?
Hi. Are the 787 carbed and RFI Lower ends -(cases) the same?
no
Lol, i built probably 7 of these engines, 717, 787, and 951s, not once did I ever waste my time with the Squish shit. And have never ever had 1 issue.
You could stick you head up a bulls ass be wouldn’t you rather take the butchers word for it?
Can you guys do a video on the Squish Tolerance on a 787?? Plz
It’s in the 787 video
A 10mm Crafttsman, MAC, Snap On, or harbor freight? Socket?
I like gear wrench. My ratchets are Mac and snap on from when I was a Toyota mechanic. Dosnt matter to me anymore
I need mine rebuilt for my RXX 🥹
Hello guys
What oil ended up you using in the counterbalance shaft gear? Manual says SAE30 but your link is for lucas gear oil. Over the years manuals have said a few type sae30, 2 stroke oil, synthetic pump oil... how critical is that?
Thanks for helping
The gear lube we have linked is what I use. It’s probably overkill actually but it’s perfectly fine to use.
Ok thanks
Waiting for the next video 😉
question, how big is this motor in terms of what hull a 951 will and will not fit in? im brainstorming a x2 build to make it more modern and wider... and the 951 is a monster
I have seen it done, its pretty big and much heavier
@@TodayWeWrench i have a 900 in my x2, its about 120 pounds in just the motor
lol "engine"... I know who that guy is :P
Hi guys. I’m assuming that’s a Rotax 951. I recently bought a 2004 seadoo sportster with a fault Crank position sensor. Where is it located in the engine? I found it in the manual’s online and pulled apart the engine to get to it but I don’t think it’s the correct sensor. Is it that sensor shown at the end of this video attached to the inside of the stator cover? Thanks. Miguel.
You must be working on a DI, this is a carbed engine. Your are correct however, the sensor is in the mag housing.
@@TodayWeWrench Thanks for the reply. I really appreciate it. It’s very helpful to be able to confirm it’s position. Regards Miguel
Hey guys!! my 951 isn't going into power band, rebuilding everything. What reeds would you recommend to use ? Thanks in advanced!
Carbon tech
@@TodayWeWrench Thank you !
what can you use to clean the crank
We buy new cranks
what do you recommend instead of the 518 for the DI model?
Yamabond
Where are you guys located ?
They are located in IL.
Do you have a link or recommendation for a rebuild kit to use?
Link to our bore shop is in the description, he can get you set up with a crank and CB as well as a complete gasket kit. Tell him you say him on our channel and he will help you out.
Can I turn my DI into Carb? Im about to start reassembly
No unfortunately you can’t.
Hola amigo no me deja abrir el manual me queda la pantalla de carga y de ahí no pasa
Intenta descargarlo. Nunca tuve ningún problema, por lo que podría ser la configuración de seguridad de su computadora.
Wasn't there a supra here?
Its at the paint shop