550xp Mark II bottom end assembly

[LittleTree]

So i've been rebuilding this 550xp M2, cleaned the hello outta It and started to rebuild from the bottom end of course. No issues at all getting the cases together, but when it comes to try and spin the crankshaft to check the right-left alignment it feels like there really Isn't any point all over the small left/right room where the crank speens completely freely. Hit it with a Hammer both pto and flywheel side, a bit at a time all the way to One side and back, and i kinda found the point where i can't hear absolutely any drag or whatever happening. Still, the crankshaft doesn't speen THAT freely. Is It an issue? Is It that the seals kinda hold on the inner race of the bearing? I really don't understand. Bearings are new original SKF.

 

[Tobystihl]

Yes it will be the seals causing the drag, I assume you lubricated them on rebuilding?

 

[LittleTree]

Yes it will be the seals causing the drag, I assume you lubricated them on rebuilding?

Of course i lubricated them well with mix oil. So how would i find the exact position of the crankshaft?

 

[Tobystihl]

Of course i lubricated them well with mix oil. So how would i find the exact position of the crankshaft?

Sorry, didn't mean to sound patronising. The only other thing I can think of is perhaps the seals are too far into the bearing and rubbing on the ball race ?
Hope you get to the bottom of this

 

[Tomos770]

Watch that video....it is informative...

https://www.arboristsite.com/threads/chainsaw-rebuild-tutorial-step-by-step.371745/#post-8153078