Author Topic: 45 Rancher - scored piston  (Read 586 times)

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Offline man of stihl

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Re: 45 Rancher - scored piston
« on: March 25, 2012, 10:25:42 am »
You will have to take the cylinder off. If there is aluminum transfer from the piston on the cylinder walls. Then you can use muriatic acid and sandpaper to remove the transfer. If its gouged above the exhaust port, then you will need a new cylinder. The piston will need a new ring and sometimes a piston can be saved with sandpaper as well. Depends on how bad. Pics would help. I would change the seals and possibly the bearings since all that area will be exposed anyhow.Being a clamshell design, i doubt you can put a bigger top end on it. If you had a 40 i bet the 45 top end would bolt up to that. Old gas/mix is as bad as straight gas IMO. I fixed a trimmer for a guy that needed new fuel lines, well i changed the fuel lines, started it up and it ran for 10 secs and i smoked it. turns out the gas had been in it for a couple years. >:( Now when i fix something i dump the fuel and use my own.
Ron

 

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