I wouldn't worry about it, I don't keep track of hours, but these things on trimmers last virtually forever.I've never seen one wear out. The GX31 I bought 14 years ago is still running.
This just seems like a horrible idea.
I spent a good portion of the day researching, and just as I thought, they fail all too soon.
Horrible idea for longevity .
The only good thing is they are cheap and quiet.
Briggs, Kawasaki, Honda, and probably a lot more mfgs. are going this route.
Sad.
This is a cam removed from a newer Briggs.
It seems that other manufactures are following suit.
Quiets the valvetrain operation, but shortens the life as well.
Moral of the story.....BAD IDEA!
I knew it wasn't a Honda part.
That cam is from an engine size that's not legal to run on a MB.
So why bother with it here, this a MB forum.
Moral of the story is that you are second guessing companies with an engineering dept that better funded than you are.