So the only damage in pic one is those little dents, yeah like an idiot I did it with the edge of the dremel. The 5 or so thin lines are alumina transfer and the rest is dead smooth ! Yep used 240, 600, 1200 and 3000 wet dry paper, as well as a scourer and a small wire wheel on the dremelI use a dental pic tool to determine if a "scratch" is too deep. If it catches on a vertical score/scratch I replace the cylinder.
In pic 2 there is a questionable score but it is below compression line so may be ok.
Others will chime in
Pic 1 has scoring that really looks questionable.
Have you tried some 320 or 220 wet/dry paper? I've always been able to get all the Al transfer by slowly/carefully using this.
Light pressure with just your fingers...
Hey bob mate, totally smooth everywhereAcid didn't do anything? What was the dilution rate of your Bunnings acid?
If it feels smooth in there under your fingertips- no ridges or hollows that might catch a fingernail..... you should be good to go.
Don't worry about the pitting up the top where the piston never reaches.
Hmm..those are vertical score lines. If you can stop a fingernail...won't hold compression.
Just noticed the other oblique patches in the upper end...not good...
My .02
Hey bob mate, totally smooth everywhere
Acid is 320g per Litre so I’m guessing that would be 32%? I didn’t get any white bubbling like was described by others. Left on for 60 - 120 seconds and scrubbed with a q tip!
Good point!If this is for a personal saw, it'll probably run fine. I have a 394 that's has massive scoring from a bearing failure or Cir clip and it runs great. Pulls a 37 inch bar easily.
If it's for someone else and or a work saw, I'd consider getting a new/used OEM cylinder.
Ms 260 pro (adjustable Oiler, adjustable carb and decomp valve)What saw is this?
I would still go with a meteor rather than oe in case it doesn't work.
Really interesting take and point!! Thanks mateIf it has sentimental value I would go new cylinder personally. Then there is the old story of grandpas axe. You get granddads axe you see the handle is in bad shape do you replace it or hang it on the wall. Say you replace the handle and use it and the head breaks. So you put a new head on it. is it still granddads axe?
. is it still granddads axe?
Hmm..those are vertical score lines. If you can stop a fingernail...won't hold compression.
Just noticed the other oblique patches in the upper end...not good...
My .02
Damn Bro, I could go rappelling of of those arm hairs.... you part gypsy or something? ha ha haHey bob mate, totally smooth everywhere
Acid is 320g per Litre so I’m guessing that would be 32%? I didn’t get any white bubbling like was described by others. Left on for 60 - 120 seconds and scrubbed with a q tip!
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View attachment 771299
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