drcolfelt
ArboristSite Lurker
Hey everyone!
I am new here so sorry for the long story! I am not by any means a arborist! But totally respect and envy the skills that you guys have! Here goes my long problems.
So i am a automotive technician and decided to buy my first pro grade chainsaw. It was a used MS250 thast i purchased from a private party for $250. Then the problems started... I took the saw out on my property and after a fresh tank of 50:1 (stihl hp) and some bar and chain oil (pollen (sorry guys), i tensioned the chain and got to work. Then, after about 5 minutes the saw started to bog down and smoke came from the chain catcher area. I have some small engine experience (not a lot!) so i decided to investigate. The chain had gotten hot (even a bit of blue on the bar). My initial thought was that it was just a lack of oil supply to the bar, but as i investigated i found that the case of the saw had gotten so hot (around the chain brake) that it had even melted a bit. I disassembled the saw further and found some more damage, i ended up replacing the oil worm gear, clutch drum, clutch bearing, fuel line, fuel filter, impulse line, air filter and doing a full teardown of the saw and cleaning everything and even removing the piston! The saw was missing the clutch bearing, and i thought that was the reason for the overheating. Also the saw got so hot that the plastic from the worm gear melted.
SOOOOO.. today i got the saw all the way back together and it runs great but the clutch area still gets hot after running the saw for even a minute or two, it is getting oil but after i run the saw some leaks out of the bar. It does seem to be getting good oil flow.
Here are my questions-
How hot is the clutch supposed to get?
Is a small puddle of oil supposed to leak out around the chain adjustment area after running the saw?
What could cause the over heating problem?
Please let me know if you need anymore info!! Thanks so much!
I am new here so sorry for the long story! I am not by any means a arborist! But totally respect and envy the skills that you guys have! Here goes my long problems.
So i am a automotive technician and decided to buy my first pro grade chainsaw. It was a used MS250 thast i purchased from a private party for $250. Then the problems started... I took the saw out on my property and after a fresh tank of 50:1 (stihl hp) and some bar and chain oil (pollen (sorry guys), i tensioned the chain and got to work. Then, after about 5 minutes the saw started to bog down and smoke came from the chain catcher area. I have some small engine experience (not a lot!) so i decided to investigate. The chain had gotten hot (even a bit of blue on the bar). My initial thought was that it was just a lack of oil supply to the bar, but as i investigated i found that the case of the saw had gotten so hot (around the chain brake) that it had even melted a bit. I disassembled the saw further and found some more damage, i ended up replacing the oil worm gear, clutch drum, clutch bearing, fuel line, fuel filter, impulse line, air filter and doing a full teardown of the saw and cleaning everything and even removing the piston! The saw was missing the clutch bearing, and i thought that was the reason for the overheating. Also the saw got so hot that the plastic from the worm gear melted.
SOOOOO.. today i got the saw all the way back together and it runs great but the clutch area still gets hot after running the saw for even a minute or two, it is getting oil but after i run the saw some leaks out of the bar. It does seem to be getting good oil flow.
Here are my questions-
How hot is the clutch supposed to get?
Is a small puddle of oil supposed to leak out around the chain adjustment area after running the saw?
What could cause the over heating problem?
Please let me know if you need anymore info!! Thanks so much!