Shortblock vs rebuilding

deaner · Dec 18, 2012

Seems like everyone always talks about getting a shortblock when their engine is at its end. Just wondering what the advantage is over getting it rebuilt? Just measured my crank run-out tonight and have 9 thou, so she probably needs some attention pretty soon.

Here is the link to trygstads website for the rebuild. So 1350 for a complete rebuild.....or 2500+/- for a shortblock?

snopro · Dec 18, 2012

Dealer installed short blocks have 1 year warranty deaner. Rebuilding gives you 90 days on the parts. Thats good enough for me! Lol.

deaner · Dec 18, 2012

Ok thanks. Good to know.

Am I ok finishing out the season with 9 thou runout? I guess I should have checked this sooner. Just really dont want to tie into this at this point in the year.

snopro · Dec 18, 2012

Thats a lot of runout. Its hit or miss. Chopper ride out could go along way towards the price of the short block. Find some down time and do it then when you cant get out to ride?

thekrust · Dec 18, 2012

.009 runout may not make it through next weekend!! Think of all the weight of the clutch that much off centre causing vibration though all of the bearings in the engine........BOOM! I'm a big fan of rebuilding...however... With the Ski-Doo engine you or any small shop like mine CANNOT rebiuld that engine with OEM parts for anywhere near the 2175 (don't quote me on that but close) that Bombardier is charging. When you throw in the 1yr warranty they offer when the dealer installs it, it's a no brainer. Spend the extra few bucks, get the OEM engine and the warranty!

deaner · Dec 18, 2012

It looks like Trygstad is doing a full rebuild for $1350? Where would the extra parts costs be.

How much does a dealer charge to install? Im really trying to do this on a budget.

Any other info anyone can provide would be greatly appreciated. How much are people paying for BRP shortblocks? Anyone else to consider for a rebuild? How much for JUST the parts? I have an experienced engine builder locally that could help me.

Thanks.

snopro · Dec 18, 2012

What year is your sled deaner?

deaner · Dec 18, 2012

Its a 2010

CUSO · Dec 18, 2012

Shortblock is a fast way to get back on the snow. What would a dealer charge for an install is the question. 1 year warranty, roll the dice on the year and come out ahead mostlikely if you install it yourself. If it's an older sled, what about just a new crank?

9 thou is 1 pull away from a helicopter retrieval. Your bearings are shot. Buddy had the same runout on his 08 and it was on the verge.

I think it's time for an 872... :thumbsup2:

CUSO · Dec 18, 2012

Also, there is a chance the crank can't be trued with that kinda wobble. Buddy's wasn't.

deaner · Dec 18, 2012

Oh believe me man Ive thought about it. I just havent seen any bigbores that have impressed me enough to spend that kind of money. Plus my first kid is due in 2 weeks! How much for just a crank? I figured I might as well just do the top end while everything was apart. I think I have a full season on my pistons.

deaner · Dec 18, 2012

CUSO said:
Also, there is a chance the crank can't be trued with that kinda wobble. Buddy's wasn't.

Oh, I thought they just put a rebuilt crank in it when they did that? So youre saying that they just try to true mine and throw new bearings on it?

edit - no, I double checked and they use a BRP rebuilt

thekrust · Dec 18, 2012

Last time I bought OEM Ski-Doo 800 pistons they were $260 ea if I recall the crank was close to $900 (there is a core return...how much??) then factor in $300 per hole for replating, gaskets. labour and so on... The shortblock starts to look pretty good. With aftermarket parts you can do it alot cheaper but those engines like the OEM stuff, problems seem to happen with cheap rebuilds.

thekrust · Dec 18, 2012

When you get a shortblock it comes with factorty rebuilt crank with all new bearings, replated cylinders, new factory pistons all assembled in fully checked out cases. They take the head, powervalves and electrics from your old engine and transfer them to the new. Need to supply a few gaskets to complete the deal.

CUSO · Dec 18, 2012

7 hundy, check out page 58

When my friend brought his into Mot's he tried to true it, and there was no way. He ended up getting a new one, not sure, but I think they check and see if you get the core money back.

deaner said:
Oh believe me man Ive thought about it. I just havent seen any bigbores that have impressed me enough to spend that kind of money. Plus my first kid is due in 2 weeks! How much for just a crank? I figured I might as well just do the top end while everything was apart. I think I have a full season on my pistons.

pistonbroke800 · Dec 19, 2012

I just did a full rebuild on my 860 for under 2 grand. New crank from BRP with mine on exchange. Had Linderman true balance and weld it. Bought new pistons and gasket kit from Big John at SHR. In my mind i have a stronger and more powerful engine than any short block out there for about $500 less. Although i did spend a few nights in the garage wrenching but i dont mind that one bit.

maxwell · Dec 19, 2012

Always had good luck with short blocks. Have never had any luck with professional engine builders rebuilding mine. Had motts do one.....boom.....had shr do one......boom.

pistonbroke800 · Dec 19, 2012

What made the engines go boom?

deaner · Dec 19, 2012

At 9 thou runout.......what is my most likely scenario? Boom, or grind to a halt? Will I hear it coming? Is it likely any collateral damage will be done? Just wondering if I am safe riding it through the Christmas season, because I dont think I will be getting anything replaced before the weekend.

So it looks like my options are:

1. get parts and rebuild myself. 700 for a crank, 300 for a top end kit. But Im probably not experienced enough to do something like replace a crank.
2. Send engine to a builder like Trygstad and get rebuilt for 1350. But, likely going to be quite a delay. I like the idea of having a guy like him build it,and curious to try his pistons.
3. Get a shortblock from BRP. Quick and easy change out, but more expensive and using stock pistons (I like the dual ring) Any firm prices on how much these are?

Why the hell didnt I measure my runout this summer?????? uggghhhhh

maxwell · Dec 19, 2012

pistonbroke800 said:
What made the engines go boom?

Wish I knew. Had shr take a 2008 block with a seized crank. Put in 860, new crank with new bearings. Didn't make it trough the season before the crank twisted beyond repair. Then had motts put a new crank in and then the bearing seized. I don't know but I've installed more short blocks than I can count and not one issue. To me having something totally new rebuilt by someone who knows what's going on to factory specs is worth the $. But that's just me. Ill never get another engine fully rebuilt again. Pistons no problem but I think there are only certain people who should be playing with cranks an they work for rotax.

Shortblock vs rebuilding

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