When is a cylinder not worth saving?

[Dengel]

I've got an 039 on the bench currently. Bad crank seals fried the piston, and left some marks on the cylinder. I've removed the aluminum transfer with muriatic and a ball hone, but there are still some deepish looking scores in it that don't go past the plating. How do you guys judge when to junk a cylinder or run it?

 

[cuinrearview]

Take pics

 

[Dengel]

Here you go

 

[dmb2613]

put a pop up piston in it and open up the muffler richen up the carb and cut wood like you had a 440

 

[TBS]

I've got an 039 on the bench currently. Bad crank seals fried the piston, and left some marks on the cylinder. I've removed the aluminum transfer with muriatic and a ball hone, but there are still some deepish looking scores in it that don't go past the plating. How do you guys judge when to junk a cylinder or run it?

Judging by the pictures I'd run that cylinder, if the marks don't grab your finger nail and no plating is missing the cylinder is still good.

 

[RED-85-Z51]

Kinda looks like the ball hone beat up the plating on the edges of the transfers

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[Dengel]

Thanks for the input folks. I had another look in better lighting, and the plating is definitely damaged.

 

[furb]

I thought the rule was always not to hone these cylinders to keep from damaging the plating around the ports? Now it’s seems to be the thing to do.

 

[RED-85-Z51]

I thought the rule was always not to hone these cylinders to keep from damaging the plating around the ports? Now it’s seems to be the thing to do.

I use a 3 stone hone and an aggressive cutting method to quickly remove max material...havent had any problems yet but i can't use it on an open transfer jug. Bottle Hones will tend to snag the ports

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