Travis-Mc
OPE Member
Hey guys I'm new here... I posted on another site about this same issue, but thought I post here too.
The piston in my Stihl 362 C-M looked great last week. I know this because I took pictures when I was asking about if the compression of 135-140psi is okay for this saw with about 3 gallons of gas through it.
Well now I have a real problem. I was out cutting on Saturday and after maybe 10 minutes the saw starting having problems idling, and then wouldn't start. I figured the solenoid crapped out since I've been told they can be a problem. I grabbed my little husvarna 345 and after several minutes it started having problems running too. I dumped all the gas in both saws, mixed up some fresh stuff and both saws worked fine after that.
So today I pull the muffler cover off the 362 and the piston is scored. Ugh! I know the gas has oil in it as I've been using it for a while (weeks) without any problems. Premium 91 octane gas with no ethanol, and Stihl Ultra oil mixed at 50:1. It was probably 2 months old.
What the heck! Both saws have the same compression as before. The 362 is at about 135-140psi. I've attached pictures of the 362 piston. Think I should keep running it since the compression hasn't changed?
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That deeper scratch on the left side in the middle has me a little worried.
The piston in my Stihl 362 C-M looked great last week. I know this because I took pictures when I was asking about if the compression of 135-140psi is okay for this saw with about 3 gallons of gas through it.
Well now I have a real problem. I was out cutting on Saturday and after maybe 10 minutes the saw starting having problems idling, and then wouldn't start. I figured the solenoid crapped out since I've been told they can be a problem. I grabbed my little husvarna 345 and after several minutes it started having problems running too. I dumped all the gas in both saws, mixed up some fresh stuff and both saws worked fine after that.
So today I pull the muffler cover off the 362 and the piston is scored. Ugh! I know the gas has oil in it as I've been using it for a while (weeks) without any problems. Premium 91 octane gas with no ethanol, and Stihl Ultra oil mixed at 50:1. It was probably 2 months old.
What the heck! Both saws have the same compression as before. The 362 is at about 135-140psi. I've attached pictures of the 362 piston. Think I should keep running it since the compression hasn't changed?
Top
Middle
Bottom
That deeper scratch on the left side in the middle has me a little worried.