Petamo or Isoflex grease question

[Coldfinger]

I haven't kept up on Ski-doo technology since I had my 99 Summit-X 670. Prior to that I had a 95 670. Both had approx 5,000 miles without any engine issues. My 92 580(3?) never had any issues either. Great sleds. In 2005 I bought a 900 Mtn Cat and have been on Cat since then, buying a 10 M8 which I'm still riding with approx 4,200 trouble free miles. I never had to disassemble the engines on any of these sleds.

Looking to upgrade but undecided what brand to go with. I want something that is hopefully as durable and trouble-free as my previous sleds.

I believe in 2008, the Summit 800 crankshaft bearings required service around the 2,500 mile mark to repack with Petamo and Isoflex grease. I may be wrong, but I believe there were crank issues, esp for people who didn't perform this maintenance. Maybe no issues for ones who did, I don't know.

Looking at parts fiches, it looks like these greases are not listed for the 800 cranks from 2012-2017. Not sure if the cranks still required regular maintenance.

With the 850 engine in 2017, I see Petamo grease on the fiche.

Does this mean the new 850's require routine crankshaft regreasing to replace the Petamo grease?

 

[Skidoox]

No the Ski doo 850 engine do not use Isoflex grease for the bearings. The bearings get oiled from the 2 stroke oil system.

 

[wwracer]

The Petamo grease is a lubricant for crank seals.All modern 800's use isoflex. I buy it from the dealer in bulk. It comes in a container similar in size to a tub of wheel bearing grease, and is a dam sight cheaper, as opposed to the small tubes they sell

 

[Coldfinger]

So there is no recommended service interval to apply grease to the crank seals?

 

[wwracer]

No they just want replacement seals lubed up before installing. I've been rebuilding Rotax motors for a lot of years, never used Petamo, just a quick wipe of vasoline. 850 is a great motor, but like all modern sled motors, I wouldn't own one without warranty. Replacement parts are prohibitively expensive

 

[Ox]

No the Ski doo 850 engine do not use Isoflex grease for the bearings. The bearings get oiled from the 2 stroke oil system.

That is the first time that I seen the bearing set-up on this motor.
I was wondering what they were using.

A split roller - gotta say - I never seen that before!

I'm guessing that Doo didn't pioneer that part of it.
Has Automotive or other been using that type bearing for a while elsewhere?
Or maybe bikes?

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