Engine Rebuild Piston Wear on Saws

[oceancruze1]

I am new to rebuiding chainsaws but have rebuilt automotive race engines. Do pistons actually wear in chainsaws rather than just rings like in automotive engines? Do you use a micrometer to determine how much wear there is? What about cylinders, what can you do to get the prepared for a rebuild. If there is no scoring do you throw it back together, scuff up the walls to get the rings to seat? What do you do it there is some scoring albeit maybe slight, try and clean it up with??? What should the compression be on most saws specifically a Stihl to determine if it needs a rebuild in the first place

 

[Grace Tree]

You're likely to get more constructive answers if you post your questions in the CHAINSAW
category.
Regards,
Phil

 

[(WLL)]

I am new to rebuiding chainsaws but have rebuilt automotive race engines. Do pistons actually wear in chainsaws rather than just rings like in automotive engines? Do you use a micrometer to determine how much wear there is? What about cylinders, what can you do to get the prepared for a rebuild. If there is no scoring do you throw it back together, scuff up the walls to get the rings to seat? What do you do it there is some scoring albeit maybe slight, try and clean it up with??? What should the compression be on most saws specifically a Stihl to determine if it needs a rebuild in the first place

i like to hone the jugs befor install, it lets the rings set better. you can bore the jug,like an auto engine and use an oversized piston and sleeve. imo the best jugs are nickle or chrome plate. if you dont have the resources to machine and sleeve then its much cheaper to buy a rebuild kit from Baily's. 160-180psi is good

 

[(WLL)]

You're likely to get more constructive answers if you post your questions in the CHAINSAW
category.
Regards,
Phil

:agree2: