I got this cutter back into the workshop again. Wouldn't idle, bogging at rev up and shutting unctrolled off. I suspected a fuel delivery problem, but checking the entire fuel route out, still the same problem.
Next possibility was a massive air leak somewhere, so decided to take everything apart.
To my disbelief, I noticed that the crank seal on the drive side had completely come out of the housing, and was freewheeling on the shaft. Original Stihl seal. I have never seen that happen before on any chainsaw. Manufacturing tolerance problem ? What do you guys think ?
Next possibility was a massive air leak somewhere, so decided to take everything apart.
To my disbelief, I noticed that the crank seal on the drive side had completely come out of the housing, and was freewheeling on the shaft. Original Stihl seal. I have never seen that happen before on any chainsaw. Manufacturing tolerance problem ? What do you guys think ?