Farmertec MS361 Top End Rebuild
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- Опубліковано 6 вер 2024
- So I bought a knockoff chainsaw from a friend knowing it had a few issues. It is a Farmertec MS361, which is just a part-for-part knock-off of a Stihl MS361.
I like to learn by doing, and I knew next-to-nothing about small engine performance, so I figured this would be a cheap education. In this video I chat about how it was misbehaving, a few of the things I learned trying to improve its performance, and the series of events that lead to it seizing up.
Then I tear it apart, examine the damage, and order new parts. I replace the piston, cylinder, rings, wrist pin, needle bearing, gasket, and ignition coil.
I get about 15 seconds of runtime out of my rebuild before it locks up again. Look forward to a future video on rebuilding the bottom end.
Bought my stihl 361 exactly 18 years ago today.
It has never let me down, not once.
Now after 18 years Im starting to look into having the saw O/H'd with New carb membranes, oil/gas filters etc. It hasnt seen extreme heavy use - but "stihl" after 18 years, thats impressive.
Thanks for sharing your experience! I've heard from several people that a genuine Stihl MS361 is an absolute rock-solid workhorse. Unfortunately for these Farmertec knock-offs, sometimes you really do get what you pay for.
I have a Stihl MS361 and I agree with you about the cover design. It's a real pain to get to the spark plug. I've ripped up 2 spark plug boots already.
I bought a spark plug boot puller and it works great. A little silly to buy a specialty tool to work around this design, though, especially since it's the only thing you can't do with a scrench.
A little oil in the cylinder and piston goes long way. When you turn the flywheel it sounds awfully dry.😮
I put a thin film of 2-stroke oil on everything as I assembled, and I thought I gave the rings a decent helping. But I don't really know what I'm doing and I hear what you're hearing, so I guess I should have added more.
A little closer camera view would help tremendously
It's a balancing act. I do my best to get the shot, but sometimes I have to pull the camera back so I can actually get in there and do what I need to do.
Hiya, so what happened?
The new piston broke, dropping a chunk of aluminum into the crank case. Here's the video of the ensuing bottom-end rebuild: ua-cam.com/video/vzhyaR0nWMk/v-deo.html