mttritle
ArboristSite Lurker
I've got an 034 AV Super which I bought new about 35 years ago, and the thing still runs like a top. Not long ago, I noticed it was leaking a substantial amount of oil while not running, and as I checked it out I noticed the bar wasn't getting any oil. I took it to the dealer for a complete replacement of the oil pump and lines, but they said they wouldn't work on it because Stihl didn't make the oil pumps anymore and they couldn't use after market parts due to liability issues.
So, I got an after market pump from China through Farmer Tec, and new pickup and discharge lines from Stihl. This type of saw repair was all new to me so I watched a lot of good you-tube videos from a lot of really decent mechanics. It was a bear getting the discharge line/grommet in, but after a couple of failures, I finally got it seated. One of the videos said that at that point, to check the oil flow with the saw running to see if oil was coming through the grommet, and it was flowing very well. I put the bar and chain back on, and while the saw was running oil was dripping off the saw and virtually nothing was getting on the chain. Taking the cover, bar and chain off, it appeared that the entirety of the oil that leaked was between the inner side plate and sprocket cover. The only thing I can figure at this point is that maybe the "inner side plate" is bent and not providing a good seal between the grommet channel and bar, or perhaps the bar is warped slightly and not allowing for a good seal, I should add that I've clean the ports on the bar, so there should be no obstruction there. Any helpful thoughts would be appreciated.
So, I got an after market pump from China through Farmer Tec, and new pickup and discharge lines from Stihl. This type of saw repair was all new to me so I watched a lot of good you-tube videos from a lot of really decent mechanics. It was a bear getting the discharge line/grommet in, but after a couple of failures, I finally got it seated. One of the videos said that at that point, to check the oil flow with the saw running to see if oil was coming through the grommet, and it was flowing very well. I put the bar and chain back on, and while the saw was running oil was dripping off the saw and virtually nothing was getting on the chain. Taking the cover, bar and chain off, it appeared that the entirety of the oil that leaked was between the inner side plate and sprocket cover. The only thing I can figure at this point is that maybe the "inner side plate" is bent and not providing a good seal between the grommet channel and bar, or perhaps the bar is warped slightly and not allowing for a good seal, I should add that I've clean the ports on the bar, so there should be no obstruction there. Any helpful thoughts would be appreciated.