what type of stone do you use when you rehone a go devil

[tow hook]

my go devil is in need of a refresh, after watching some videos. i've learned that old engines use cast iron rings, and the hone should have course stones in it.  as i learned fast the rings, and the stones must match.....

i called k.w. and asked if there rings were cast iron. he had no clue, and he had a shop do the work for his engine.

so were did you get your rings? and what type of stone did you use ? fine, med. or course ?

 thanks for any info

[tow hook]

i read and watched videos for fine, medium and course stones. any tips ? my bores are just glazed over.

 thanks

[Mark W.]

So your going to rehone your cylinders and put in new rings without boring the cylinders? have you measured for taper and run out?

[tow hook]

So your going to rehone your cylinders and put in new rings without boring the cylinders? have you measured for taper and run out?

i haven't acquired the tools to measure the bore yet.. the bores are very glazed. ( like glass )  after i find out my specs. if all is right, i plan to hone / cross hatch the bore. then measure for piston fitment and get rings......  if it needs a machine shop, it will sit for a long time before it gets the love it needs

[tow hook]

i got the gauges needed to measure the bores, i'm going over tomorrow and will post the results.

[tow hook]

i did 8 measurement per bore bore number 1   lowest to highest 80.39 to80.41 mm num 2 80.36 to 80.65mm num 3   79.77 to 80.57mm and num 4 80.08 to 80.69mm target number is 80.391 to 80.442 i wish there was a .50 over vs going all the way to .60 over