Rebuilding a XP 720 Motor

[Guyph_01]

Thats ok, I know what you mean. But ski here are not that cheap and quite rare. I paid $500 for it. Lookk like it pretty much needs a rebuild for everything, engine, pump etc. Starter is new so as magneto and its got some new carby seak kit and gaskets incl.
And running second hand ski is about $2500 but thats for one thats been well used and has its own surprises. A reliable ski is about $4000-6000 maybe. If i was in the Us i'd definitely buy a running one. But here even id it ends up costing the same as a running one with surprises, at least i know everything is new

Hummm, what does that engine alignment tool work?

 

[Guyph_01]

Anyway, The headache puzzle:S

This is why i need a new head

Is this bad? can i still use it? It corroded and forced the cylindrical shape in!!

 

[LouDoo]

O.K., a good running 95XP here would run no more than $1500.00. Anyway good luck with your project.

The engine alignment tool is used to align the motor with the pump, shims are used between the motor mount and the motor to achieve this, they typically sell for $150.00 or you can rent one for $75.00, but you have to pay shipping both ways. You would probably be better off to have your local dealer align the engine or borrow or rent the tool from him. Here's what it looks like.

http://www.watercraftsuperstore.net/PROD/714SB135.html

YouTube as a couple of videos of how to use it.

Lou

 

[ocod]

Wow.
That's a lot of work and that pump and head is wasted.

I would just find short block and call it a day with regards to the engine.

Can't see conditions of cases and cylinders

 

[LouDoo]

:agree: I'm no professional, but I do consider myself a better than average shade tree mechanic. I would buy a short block, problem is I'm not sure if you even have a rebuildable core. Also looks like your pump is toast, you probably would be best to find a good used one.

There's another guy from Perth on this forum 1MACGYVER, why don't you PM him ask him if he could come over for a beer and take a look at your ski, he might be better to advise you in person. He just bought a HX with a 720, and can probably give you resources for parts.

Lou

 

[Guyph_01]

My problem is that a short block is $1600 + postage

I had the the core looked at and its still ok, but like you see i need everything else lol.

As soon as its Monday i'll go on a Australia hunt for parts and see what i can get like the pump and crank and big stuff that would cost to much to get from the US

 

[LouDoo]

You might want to check these guys out $650.00 plus shipping. They've had pretty good reviews.

http://seadooengineshop.com/seadoo-engines-standard/

Lou

 

[Guyph_01]

I'm starting to wish i Live in the US.....

thx for all the links and info guys, i'm full on sending requests and trying to find the best way to put this ski back together

If i get it, Only thing they require an exchange, any care to donate a blown 717,720? i'll pay postage to them and a little extra for your troubles

 

[ocod]

My problem is that a short block is $1600 + postage

I had the the core looked at and its still ok, but like you see i need everything else lol.

As soon as its Monday i'll go on a Australia hunt for parts and see what i can get like the pump and crank and big stuff that would cost to much to get from the US

They are no where near that much out of a parting ski.
But if your piecing engine together like I mentioned big parts are crank 400-500 then its boring/honing with new pistons for 300 bucks.
(kit will include wrist pin needle bearings, seals, gaskets from fullboreonline.com)
The PTO, Stator and flywheel is reused as you know.

Dealer should be able get you rebuilt crank at similar prices w/o shipping.
(sometimes you'll get lucky)

 

[ocod]

I'm starting to wish i Live in the US.....

thx for all the links and info guys, i'm full on sending requests and trying to find the best way to put this ski back together

If i get it, Only thing they require an exchange, any care to donate a blown 717,720? i'll pay postage to them and a little extra for your troubles

Ebay your best friend or minnetonka/99. I'm sure they will have engine needing rebuild.
Have then send it to engine builder then to you.

ebay item number for engine rebuilt with no core requirement
290634831070

 

[Guyph_01]

Yes as of Monday i'll get prices

Any other model use the same pump as the XP 720? So i can widen my search...

Thx again for all the help and advice

 

[ocod]

Yes as off Monday i'll get prices

Any other model use the same pump as the XP 720? So i can widen my search...

Thx again for all the help and advice

I think all 140mm pump are interchangeable. Only thing you had better one with brass vein VS plastic one

 

[Guyph_01]

Only thing you had better one with brass vein VS plastic one

Waht do you mean?

 

[ocod]

The spiral in the pump is brass or plastic.
Yours is brass = $$

 

[ocod]

I'm starting to wish i Live in the US.....

thx for all the links and info guys, i'm full on sending requests and trying to find the best way to put this ski back together

If i get it, Only thing they require an exchange, any care to donate a blown 717,720? i'll pay postage to them and a little extra for your troubles

We can try to get engines for 100 or less??And pumps would fit your xp.?
You will reuse the extension.

http://miami.craigslist.org/mdc/boa/2651015129.html
sale-gqddt-2697828266@craigslist.org


http://miami.craigslist.org/mdc/boa/2697828266.html
sale-3egqd-2651015129@craigslist.org

I know s/h of 80lb crate is ~$80
Add 1000 for rebuild
Then s/h to you??

Get new pump and all that's left are the electronics.

 

[Guyph_01]

More ****ed up parts

This is one of the carby, the oil with the oil control butterfly

See how he glued the screw due to a cross threaded thread i guess

I'm pretty keen on an engine from the SeaDoo engine shop. I asked for a postage quote to get one to me. My only issue would be to supply them with a dead engine. As i don't really want to pay expensive postage to send mine from Australia.
I'll see with them if its possible to pay a little extra to get that re-con engine without having to send a blown one. Hopefully it would be the same $$ or less than to ship a blown engine to them from the US or from Australia.

 

[crisso]

Hey mate.Gold coast here.Also have a look at jetskiwarehouse on the Gold coast.Do not quote me on that name but I think that is it.They are a jetski wreckers.They also have a lot of parts.Do a search for them.The guys on here WILL get you good parts but if you find some parts at the other place,I could drop in and have a look at them for you b4 you buy them.With the US dollar diff. all you have to look at is the postage.Post me if you need a hand

 

[ocod]

As long as core motor can be rebuilt it doesn't matter where it comes from.

That carb is also wasted. What did PO do to that ski. UGHHHHH :banghead:

 

[crisso]

Hang on.I think it is jetskiparts.I'll have a look and put another post on here.DON"T buy anything yet!!!

 

[ocod]

Criss how far are you from him?

OP junk that entire thing but the hull and start fresh.

Find the long block from fresh water ski with good compression and be done with it.

No sense in rebuilding something so far gone to cause any problems with new rebuild.

At least that's what I would do.

 

[LouDoo]

:agree: Everything looks pretty rotten, this is not the first rebuild on this engine, SeaDoo has never had a black engine.

Lou

 

[crisso]

Nup.Its jetskiwarehouse.Contact them for a new motor or parts.I'll give you the sums.It will cost you about 4 grand minimum to get the ski back to new.Or new to a point where you have a bulletproof ski.Motor,jetpump.What about the electricals.?It's a saltwater ski without a doubt.Parts are really dear over here compared to the U.S.And the dealers know it.When it comes to finding a good mechanic?they are as rare as rocking horse shit.they'll want about 450 for a starter motor.about 600 to pull the motor out and drop another in.Before any parts.I'am not bad on the spanners and did the work on my ski to do a total rebuild.But only with the help of these guys.!!!!
I saw you say about a 2nd hand piston.Mate.Never do it.Unless you have the gear to weigh the piston,put the rings on,weigh again,rods,weigh them all.These things run big rpm and there is never a small letgo.Built correctly,they can.
Mate.If you can buy a crate motor at the right price to bolt in,go in that direction.If you are pretty good mechanically.Your trailer is worth good dollars,so is the hull,seat,gauges etc.
These things are bullshit fun.I would look for a good runner if you cannot get a good new motor.There is a lot of water between fun and getting towed.Pm me and I will help you anyway I can.You just have a big job ahead of you.Hope this helps mate

 

[crisso]

Ocod.How far?Yeh not that bad,bit like Florida and California.It'll be right.We'll get Guyph on the water.Lou can help also.He's one of us Aussies in the winter.(and summer if he wants)He understands our lingo

 

[Guyph_01]

Hey guys,

Thx for the info and advice. Yes at the moment i'm trying to get as much quotes and info as possible. Only thing i did was to give the Ski a wash inside out and a polish had to do something

Anyway, i think the best option would be to get a whole engine. The one Lou suggested fro that seadooengineshop looks like the best option for now but like we said, postage would be expensive and i need to find a blown engine for them. I didn't get a reply from them yet
Is anyone of you US guys close to them and could see with them if they are willing to ship one to AUS without being exchanged? Or could give them a call for me explaining them to see if they are willing to ship to AUS, how much and without an exchange engine and if they need an extra cash (giving them this as a last negociating option)? I would really appriciate it.

I've talked to Minnetonka4me and i'll be able to get some parts off him too like the missing oil injection stuff

I googled and found Jetsports QLD and ask for a few quotes from them. Amoung other stuff i ask for a full second hand oil injection kit but this is what he replied. (Would be best to buy oil block off plate $16.50 you can just premix your oil and fuel.)
I know you guys said this was bull but why would a shop recomend it????

Crisso, i'll have a look at jetskiwarehouse, thx for that Yes parts here are definately at least twice the price in the US but postage from the US may make AUS parts worth a look at. Nice Comby Is it Subaru Powered?? I've got a 89 subaru L series wagon, (Leone or Loyal for the US boys) and i replaced the crap 1.8 with a 2.5quad cam from a 2002 Outback and a AWD gearbox from a Liberty (Legacy for the US).
My linkPage 1 when it had the EJ22 off a liberty (legacy), the 1st conversion, http://www.ausubaru.com/forum/showthread.php?t=20153
Page 15 shows the final product http://www.ausubaru.com/forum/showthread.php?t=20153&page=15

What do you guys think??? So yeah i know a little about Mechanics but nothing about SKi's and its still quite different to the Subaru

For the Ski, its got looks like a new good starter, and new in box mageto thing, a few new seals, two carby rebuilt kits, i'll try to clean and reseals the good carby ( is that hard? any things i should or should not do, tricks?) Its two exhaust cones for some reason? how can i test them? just incase one is not good:S Hummm and the odd water leaks that i noticed when washing it that i need to block off or find

Yep definately a BIG ASS rebuild Lol. I love it, keeps me busy and at the end of the day, im proud of what i've done Ohhh and i study Mechanical engineering double in Moorsports and university. Still got a year and a half left

Again a huge thx to everyone, You guys are very kind and helpfull and thx for the help

 

[LouDoo]

I work at an automobile dealership, we lost our Saturn dealership (they don't make them anymore), and replaced it with a Subaru. The first time I opened the hood on one, I thought it looked very familiar. I use to own, a 1964 Corvair Convertible, opposing 6 cylinder engine, the difference being the Corvair was air cooled. I restored the car, lost interest and sold it.

Lou