I have a 2000 summit 700. I've heard that at 2500 to 3000 miles, the crank bearing on the pto side needs repacked. Need any advise, things to look for, or any tricks that may be helpful. Thanks for the replies!!!!!!!!!!!

In a sence you really dont "re-pack". If you have a port or small tube above the bearing near the carb you can inject a small tube of isoflex bought from a Skidoo dealer for a hefty price in their.
Isoflex is put in at assembly from the factory and usually not needed after that but some like to do it every year or so. All I can say is it wont hurt anything except your wallet.

I'd like to hear from someone who actually squeezed grease into those bibs?
It is a sealed un vented cavity and the grease just pushes back out, what's the trick? if you tried to force it with something like a grease gun you'd for sure blow the seals. FWIW I've had 700's apart with WAY more than 3000 miles and there is still plenty of grease.

Can I also add isoflex grease to my PTO bearing on my 01 MXZ700......it has a little port with a cap on it there, but the manual for it says nothing about adding grease??

Hillpounder, will I need to spilt the case and replace the seals???
I've also heard alot of cranks break on the 2000. Is it due to the crank bearing with the grease, the other crank bearings, or rods???

Thanks!!!!!

Hillpounder, I have done this to my 2000 Flll [809] without any problems.
You have to find a syringe, [can be found at a farm store] I found one at a gun show for 25 cents. You have to remove the needle and slip on a 3/16 tube and just shove it in! The syringe I found will do it about four times with the tube from skidoo [$50.00].
Only reason I even did it was because the clutches got so hot from a Cudney clutch kit that a ton of grease came out thru the seal and I was afraid it was all gone, so far so good.

Summit33, you dont have to split the case to replace the seal "IF" you know what your doing. But, they are designed to be put in with a split case and it is the normal way.

thanks Mikadoo, I wondered how guys were doing it.

Summit, unless you lost a bunch of grease out the pto seal ( a little can be normal, it's the excess grease that the seal was lubed with at assemby) I wouldn't worry about it. You can see here:

http://216.37.204.206/ingles/Skidoo_oem/Sk...pe=13&A=370&B=5 (http://216.37.204.206/ingles/Skidoo_oem/Skidoo.asp?Type=13&A=370&B=5)

there is a seal on both sides of the bearing, obviously the inner cannot be changed without spiltting the case. Also you can see the grease can't go anywhere.

The 00 crank history is mixed, some have high miles some went fast. The first thing doo did was to put out a bulliten on the oil pump setting, they wanted to make sure it was set on the second mark. Since people were losing the mag side bearing (oiled through a drip hole, NOT geased) everyone assumed oil starvation. But then they came out with a update kit crank, not a recall, just what they fixed broken ones with and used for 01 up. It came with mag side bearings that were isoflexed, a plug for the oil drip hole, and a almost 2 pound mass plate to bolt on the flywheel, and a thinner starter cup to make up for the thickness of the mass plate. The mass plate would indicate a problem with harmonics or vibration in the crank? some feel it was due to slight detonation from the stock head design brought on by (too) thin base gaskets, some had .5's and since then all have .6's. This deto would rattle the crank and the mag bearings would get hit the hardest, mainly beacause thay are smaller than the others and the are on the end. The pto side had a big heavy mass on it (clutch) so it didn't get shook as bad.

If you really want to do something nice to your crank, short of splitting your case and checkking all the bearings, buy an 01 mass plate and starter cup and the 3 screws that hold it on. That said there are lot of 10,000 mile 00 700's cranks out that are still running strong. sorry for the essay, if you made it this far LOL

I owned a 2000 Summit 700 and did nothing over 8500 miles. No problems found and still in excellent shape when I traded it in. I did use synthetic oil. As well is my understanding that the 700 Summit used a sand cast engine unlike the 2000 MXZ 700. Claim is that for whatever reason this engine was more durable. I can't say whether there is any truth to this but this is what my dealer told me. Maybe some truth as my engime was bullet proof.

true story, the early release 99's, the 00 canadian 136' summit, and I think
some of the 00 formZ (puple ones if i remember right) got the sandcast early motors. They had different cylinders different case, a tighter pipe, leaner jetting and made about 126hp. The new and improved,LOL, dyecast motors were actually down on power in comparison. Not sure if the sand cast motors were more reliable or that there were so few of them in comparison that you don't hear about problems? Doo sold a zillion 00's, bound to hear about some problems.

Thanks hillpounder, mikadoo, awesome replies and great info!!!!!!!!!!!!!
I'm going to use your advise, check for grease out the seal, and get the massplate and screws as you said. Were I ride, I don't need to be towed out, as it would take alot of work to get out in certain situations!!


I had this same question on snowest website for 1 month, with no replies.

Awesome site for skidoo info.

Your guys ride out west. pm or e-mail me. Lots of awesome riding in my area!
(If we get any snow this year!!!)


Thanks again

Summit33