Seadoo 787 Engine Tear Down, Step by Step.

I'm dismantling this 787 engine to see if or how much damage was done when it overheated. I'll going to go step by step in case you are looking for some confidence to do something like this yourself.

[@mechanicjb013]

Hello, Your crankshaft appears to be fine, the other commenters are correct. Lateral play doesn't matter, ANY vertical play in that bearing (and I absolutely mean ANY), send the crank out to get rebuilt. The reason the lateral play doesn't matter is once the cylinder is on, the piston can only move vertically, which takes the lateral play out of the equation. Really enjoy your videos.

[@TheHomePros6221]

Your crank is prob fine, side to side play is fine you don’t want any up and down play

[@papadonjetski9535]

Thanks! It means a lot when guys I trust comment and leave me some knowledge and/or advice. Love your channel. Since I'm a jet ski guy, I loved your clapped out jet ski videos, but my favorite has to be the Goldwing restoration.

[@brianmike285]

Side to side play as normal up-and-down play if any is not normal. Looks like you are good. I would clean everything up real good. Put new crank seals in it seal everything up pressure test the engine and should be good to go.

[@papadonjetski9535]

Thats my plan. Thanks

[@brianmike285]

@@papadonjetski9535 do you enjoy working on these things? I am in Alabama and I am one of the only people in my area that will work on these older two strokes.

[@Nine_Finger_Wrenching]

My understanding on the rod play is, side to side is normal, up and down play is bad. But I may be wrong.

[@papadonjetski9535]

Been meaning to get on here and thank you for letting me know the crank is good. I sat up to midnight the day your video dropped on the Ford engine tear down. I wish somehow rebuilding jet ski engines translated over to rebuilding car engines! Congrats on the courage to that job yourself. I'll be watching that outcome and waiting on some Seadoo boat videos.

[@Nine_Finger_Wrenching]

@@papadonjetski9535 I feel it does kinda translate. Attention to the details is the same. Not sure it’s courage.. LOL maybe more ignorance is bliss. 😂 the Mustang has been a way bigger undertaking than what I had first thought. I’m gonna know every bolt in that car when I’m done.

[@stephenbobby5003]

The hole between the 2 halves isn't the matting surface mine has the same hole

[@eclipser2004]

I think the scuffing on the piston sides might be due to not being warmed up fully before high speed use. Not sure though. "Cold seizure" it may be called? Doesn't look nearly as bad as some I've seen. 2 Strokes are very temperature sensitive. Usually on the exhaust side of the piston if it cold seizure. Hot expanding piston and a cold water-bathed cylinder. I may not be correct on this. Just something I heard about in places with colder water.

[@papadonjetski9535]

I'll look into that.

[@sane52668]

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[@MrBlackbutang]

I am not buying that!

[@papotuto74gr59]

Do you have a email
I have a 1992 XP that is not turning on at all.

[@papadonjetski9535]

[e-mail]