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KORNSTER

Stihl 025 repair.

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Meteor pistons are about OEM quality . Have heard some people using Highway kits . Spud has had success with Meteor pistons but using OEM gudgeon pin clips . He also cleans all the aluminum transfer of the original cylinder meticulously if its not too badly scored and is able to re use it with the Meteor piston . Have a look on his " Whats on your bench " thread . so much useful stuff on there .....

Edited by Stubby

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So the long and short of it is what do you need/seek?

 

The nice thing is with this range of saws it all interchanges pretty much.

The piston is designed to go in easy on these saws btw. The chamfer compresses the rings as you put the piston in. Even new off the shelf they would only make around 135psi and the 21/210 even less having a shorter crank.

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Meteor pistons are about OEM quality . Have heard some people using Highway kits . Spud has had success with Meteor pistons but using OEM gudgeon pin clips . He also cleans all the aluminum transfer of the original cylinder meticulously if its not too badly scored and is able to re use it with the Meteor piston . Have a look on his " Whats on your bench " thread . so much useful stuff on there .....

 

I'll definitely take a good look at that thread - was going to earlier, but the saw fired up. I got sidetracked by tea and ginger nuts.

 

Spud mentioned the aluminium transfer. I was looking at the old cylinder I have. Wasn't quite sure what I was looking for. The inner surface was almost polished and glassy, which suggested to me that it could be used again, but there are two little rake lines about 10mm long, 4mm apart and about 6mm above the chamfer, so just inside the cylinder. I'm thinking if they are carefully cleaned up, they would be below the piston rings when the piston was fully retracted. But then I might be talking out of my arse.

 

I have to say that my experience with after market products hasn't been great. I bought some stuff from Hutzl - the cylinder pan would not sit square in the crank case mounts, the clutch looked like it would fall apart if you sneezed on it, the back cover for the saw was the wrong type, the clutch drum ran wildly off centre, the crank case filler caps leaked and operated poorly. They have offered a refund.

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