Is this bar still good?

[marc2000gt]

My son got the bar hot on one of my saws. The chain runs on it ok, but I have never had one with all the rivets showing like that. Also you can see it is blue where it got hot. Is the bar usable or does it need replaced?

 

[MacAttack]

First thing I'd do is check and make sure the chain isn't too tight. You should be able to pull the chain away from the bar and see the drivers. It should turn freely / easily with the saw off.

I've never personally had a bar get that hot, even when it wasn't getting enough oil.

 

[ballisticdoughnut]

That bar is fine. Discoloration is due to induction hardening of the rails as part of the manufacturing process.